Engine

+2mm oversize from stock.

Requires cylinder boring only. Bore Diameter: 83mm, Piston Diameter: 82.95 mm

12.5:1 compression. Includes pistons, rings, pins, clips and head gaskets.

All Wiseco Pistons are forged from high silicon, low expansion aluminum which offers superior strength, reduced weight, improved heat transfer, and longer life.

Diamond turned finish from one of the many CNC computer controlled turning centers guarantees you a perfect finish with no size variation. Wiseco pistons can be installed in any of today’s cylinder bore compositions (cast iron, chrome, nikasil and boron)

Wiseco’s wide range of oversize pistons increase the life of cast iron lined cylinders. 

Wiseco’s state-of-the-art computerized manufacturing facility is dedicated to supplying both the high-perfomance racer and recreational enthusiast with the finest forged piston available in today’s market place.

• Direct bolt-on, ready-to-install cylinder; requires no replating and looks virtually identical to the OEM
• Nickel Silicon Carbide plated for long life
• Honed to exact size for easy piston installation
• Big bore cylinders do not require any machine work
• Come complete with gaskets, cylinder, 94mm piston, rings, pin and clips

High quality bore kit that shows substantial power gains throughout the RPM range. 65mm piston. 9.8:1 compression ratio allows use of premium pump gas. Complete kit includes: cylinder, piston, ring set, pin, clips and gaskets.

• All new design
• Brand new high quality BBR aluminum cylinder
• 9.8:1 compression ratio
• 65mm piston
• Includes cylinder, piston, pin, rings, and gaskets

Cylinder Works Standard Bore High Compression Cylinder Kit

• Uses Vertex #23550
• Compression Ratio 13.5:1
• Cylinder Diameter 90 mm
• Standard Bore, High Compression
• Displacement 400 cc
• Engine Type 4-Cycle
• Includes Cylinder, Piston Kit, and Top-End Gasket Kit

High quality bore kit that shows substantial power gains throughout the RPM range. 63mm piston. 10.5:1 compression ratio allows use of premium pump gas. Complete kit includes: cylinder, piston, ring set, pin, clips and gaskets.

• Brand new high quality BBR aluminum cylinder
• 10.5:1 compression ratio
• 63mm piston
• Includes cylinder, piston, pin, rings, and gaskets

CRF230F 240cc Kit:

• 67mm piston, pin, clips, and rings
• New (not reground) high-performance camshaft
• Includes heavy-duty valve springs
• Includes head and base gaskets
• Requires boring of your stock cylinder to fit the new piston

Big bore kit for the 2003-2005 CRF150F. A simple bore in bore kit that includes BBR's high performance camshaft and valve springs for added performance. This cam features higher lift and duration than stock. Complete kit includes piston, rings, pin, clips, BBR MX cam, valve springs and gaskets. This is the quickest way to add the most power to your bike. Great when combined with our exhaust system, Rev-Box, and Free-Flow airfilter. Requires machining of stock cylinder for installation.

• Adds up to 3.5 HP
• 67mm piston, pin, clips, and rings
• 10.75:1 compression ratio
• Includes head and base gaskets
• Makes more aggressive style of power
• Bike still starts easily and idles smooth
• Same camshaft as used by the BBR Race Team
• Requires professional boring of your stock cylinder

Wiseco 96mm/+1.00 mm piston with rings, wrist pin, circlips, head gasket, and base gasket. 

Requires your cylinder to be bored to fit the larger piston.

All Wiseco Pistons are forged from high silicon, low expansion aluminum which offers superior strength, reduced weight, improved heat transfer, and longer life.

Diamond turned finish from one of the many CNC computer controlled turning centers guarantees you a perfect finish with no size variation. Wiseco pistons can be installed in any of today’s cylinder bore compositions

Wiseco’s state-of-the-art computerized manufacturing facility is dedicated to supplying both the high-perfomance racer and recreational enthusiast with the finest forged piston available in today’s market place.

An easy big bore kit that increases your KLX110cc motor to 130cc. Includes piston, rings, pin, clips, and gaskets. A quick and inexpensive way to really improve your engine.

• 57mm aluminum piston with pin, clips, and rings
• Includes base, head, and side cover gaskets
• Requires boring of your stock cylinder

New aluminum cylinder with plated aluminum liner. High performance camshaft with lightweight piston. This is the largest bore kit available for the KLX110 that does not require boring your engine cases.

• Aluminum cylinder with plated aluminum sleeve
• BBR high-performance camshaft
• 60mm lightweight aluminum piston
• Includes gaskets

Complete big bore kit. Bolt it on and ride!

• Includes a pre-bored, big-finned aluminum cylinder for improved cooling
• Cylinder, rings, piston pin, & clips
• BBR exclusive performance camshaft
• Heavy-duty valve springs
• Rockers with tappet adjusters
• Gasket kit

Piston, Rings, Wrist Pin, Wrist Pin Bearings and Circlips included.

• This is a 2.41mm, oversized piston, so the cylinder will need to be bored.
• Displacement will go up to 675cc.

NOTE: A top end gasket set is required for installation.

ProCycle 425cc BIG BORE 88mm KIT With Cam Complete kit with 11:1 Wiseco piston (with rings, pin & clips), HotCams stage 1 performance camshaft and gaskets. No re-sleeving required. You will have to have your cylinder bored to fit the larger piston.

• Kit includes aluminum cylinder with nickel-carbide coating designed with larger water jackets
• Specially designed, high performance, hard anodized power valves (cannot use OEM)
• Forged piston with molybdenum coating
• Does not include cylinder head.

You will need to tune your EFI with something like the Power Commander V to get the most out of your Big Bore kit.

• Includes pistons, ring sets, piston pins, retainer clips and head gasket
• Wiseco pistons are forged from aerospace aluminum alloys for reliable operation and longevity
• Hi-Compression pistons fit in the stock bore, providing a horsepower boost without the need for boring your cylinder
• Big Bore pistons requires boring/replating of the stock cylinder

This kit provides much of the performance gain of the more expensive 150 (143cc) kits. But gives better reliability due to the thicker wall of the cylinder sleeve.

• Wiseco 55mm high compression 11:1 piston, rings, wrist pin, and clips
• HotCams stage 1 performance camshaft
• Includes top end gasket set
• Requires cylinder to be bored to fit the larger piston

For riders looking for advanced performance. Kit comes with everything you need to turn your XT250 into a rocket.

• 81mm piston kit
• 11:1 compression
• Big bore sleeve
• Top end gasket kit

  As with any engine or exhaust modification, you will need to re-tune your fuel delivery system for optimum performance.

ProCycle 440cc BIG BORE 89mm KIT 1 With Cam. Complete kit with 12.5:1 Wiseco piston (with rings, pin & clips), big bore cylinder sleeve, HotCams stage 3 camshaft and top end gasket set. You will have to have the larger sleeve installed in your cylinder.

ProCycle 440cc BIG BORE 89mm KIT 2 With Cam Complete kit with 11:1 Wiseco piston (with rings, pin & clips), big bore cylinder sleeve, HotCams stage 3 camshaft and top end gasket set. You will have to have the larger sleeve installed in your cylinder.

The 790cc Big Bore Kit includes a custom made, forged 9.5:1 piston with rings, wrist pin and circlips. A custom made multi-layer steel head gasket, OEM metal base gasket, tensioner gasket, and cam bolt lock plate and a ProCycle specific big bore cylinder sleeve. 

Built cylinders with 790 sleeves installed are usually in stock, but we must have your original cylinder sent to us as a 'core'. These cores allow us to keep up this program and it is nothing more than an exchange - we give you ours, you give us yours.

Includes forged Wiseco 83mm Piston (83.00/+4.00 10.5:1), Rings, Clips, Pin.

• All Wiseco Pistons are forged from high silicon, low expansion aluminum which offers superior strength, reduced weight, improved heat transfer, and longer life.
• Diamond turned finish from one of the many CNC computer controlled turning centers guarantees you a perfect finish with no size variation. Wiseco pistons can be installed in any of today’s cylinder bore compositions
• Wiseco’s state-of-the-art computerized manufacturing facility is dedicated to supplying both the high-perfomance racer and recreational enthusiast with the finest forged piston available in today’s market place.

 Top end gasket set.

• Raises compression for better low end power.
• Graphite gaskets feature a steel core, laminated on both sides with flexible graphite.
• Fiber gaskets designed for maximum seal, flexibility and torque retention.
• O-ring gaskets meet or exceed oem specifications.

The Complete Top End Performance Kit includes:

• 102.4mm Wiseco piston 9:1 compression (up from 8.3:1) with rings, wrist pin and circlips
• Stage 1 camshaft for more power
• Top end gasket set

This kit boosts your displacement from 644cc to 675cc. Your cylinder must be bored to fit the larger piston.

285cc big bore kit includes:

Wiseco piston 78.00/+5.00 10.5:1 (with rings, pin & clips): 

• All Wiseco Pistons are forged from high silicon, low expansion aluminum which offers superior strength, reduced weight, improved heat transfer, and longer life.
• Diamond turned finish from one of the many CNC computer controlled turning centers guarantees you a perfect finish with no size variation. Wiseco pistons can be installed in any of today’s cylinder bore compositions
• Wiseco’s state-of-the-art computerized manufacturing facility is dedicated to supplying both the high-perfomance racer and recreational enthusiast with the finest forged piston available in today’s market place.

HotCams stage 1 camshaft:

• High-performance racing camshafts
• Stage 1 performance camshafts are drop-in cams that are designed to be used with stock valve springs
• In most applications, Stage 1 cams deliver more torque.

Complete top end gasket set:

• High-tech materials provide unmatched reliability and performance
• Rebuild the engine with total confidence as each set is designed for durability and accurate fit
• Oil seals are genuine OEM replacement seals
• Performance sets designed for a piston replacement
• Includes every gasket, O-ring and seal required to rebuild a top end; valve seals, head, base, exhaust, tensioner, and other misc. gaskets and O-rings
• Does not include formed rubber valve cover gasket
• High-compression kits use .012" thick base gaskets to raise compression
• Cost-effective way to raise compression without expensive high-compression pistons or cylinder head work
• All gaskets made in the U.S.A. 

This is a great combination and a big 'bang for the buck' performance increase. 

No re-sleeving required. You will have to have your cylinder bored to fit the larger piston.

• Includes aluminum cylinder, piston kit, and special gasket set designed for larger water jackets
• Bolts on with no machining required
• 94mm big bore piston
• Aluminum cylinder designed with wider water jackets for better cooling.
• Forged hi-compression piston  12.8:1
• Includes all necessary Rings, Clips, and Gaskets.

Includes forged JE 89mm piston 10.5:1 piston, Rings, Clips, Pin, big bore sleeve and top end gasket set. You will have to have the big bore sleeve installed in your cylinder and bored to fit the larger piston.

All in one package.

• Hot Rods complete +4mm stroker crank assembly
• 94mm big bore cylinder and piston kit
• Complete gasket set with seals
• Includes new crank bearings

We suggest adding a set of HotCams camshafts and a new clutch kit for the best results.

A high quality cam chain from the folks at Wiseco. New cams, big bore kit, high-mileage motor, you might want to think about a new cam chain. Direct replacement for stock unit.

• Our own #190 cam profile offers more lift to give better low-end and mid-range punch and more duration to keep the motor pulling hard in the upper RPMs.
• Our performance cams are reground from OEM camshafts - no core charge or return required.
• We recommend a high compression or big bore piston to get the most out of your performance camshaft.

  We strongly recommend checking valve to piston clearance when installing a non-standard camshaft.

• High performance racing camshaft
• No core required
• Designed to use stock valve springs and rockers in most applications
• Improved Throttle Response (ITR) technology

High performance camshaft for the CRF150F 03'-05' and CRF230F. Higher lift and duration than stock.

• Adds 1+ HP to fully modified motor
• Makes more aggressive race-style of power
• Bike still starts easily and idles smooth

A pair of stage 2 intake and exhaust 'drop-in' camshafts. Great mid-range and top-end increase. Uses stock valve springs. Modifying the airbox and rejetting will be required to realize power improvements with these cams. These are new billet cams - No core return required!

High performance camshaft for the KLX/DRZ110. Higher lift and duration than stock.

• Makes more aggressive "race" style of power
• Bike still starts easily and idles smooth

Excellent midrange and top-end increase. Uses stock valve springs and rockers.

Designed to enhance mid-range and top-end power. Manufactured using the highest quality standards. No core required.

Note: This camshaft has been designed to work with the OEM Yamaha piston, or the BBR big bore kit piston, with OEM sized valves. Any other combination of parts will require that you manually check valve to piston clearance.

Bolt on horsepower! Stage 1: single-cam motor. Excellent midrange and top-end power increase. Uses stock valve springs and rockers.

Fitment Specs: Exhaust Lift: 5.9; Exhaust Duration at 1.00mm: 223°; Intake Lift: 6.8; Intake Duration at 1.00mm: 227°

An upgrade over stock, these hard-welded premium rockers are highly recommended when upgrading your camshaft.

Kit includes all new OE adjuster screws and lock nuts.

Please see required core information below.

This is the little rubber plug on the right hand side of the cylinder head. Replace this plug to avoid having an oil leak after disassembling your top end.

Stage 1 - Excellent mid-range and top-end power increase.

Uses stock valve springs and rockers.

• Exhaust Cam Lobe Duration at 1mm 258°
• Exhaust Cam Lobe Lift 8.800mm
• Exhaust Cam Valve Lash 0.200mm
• Intake Cam Lobe Lift 8.800mm
• Intake Cam Valve Lash 0.150mm
• Intake Lobe Duration at 1mm 258°

  Does not incorporate compression release.

A brand new camshaft purpose built for the KLX140! The KLX140 is the ultimate trail bike. It just needs a little more power.

• Adds 1+ hp to fully modified motor (170cc Big Bore kit)
• Makes more aggressive race-style of power
• Bike still starts easily and idles smooth
• Same camshaft as used by the BBR Race Team
• No exchange required
• 92 octane ok

Note: The BBR KLX140 Performance Camshaft installs the same as the OEM camshaft (valve clearance IN: .002"-.003" / EX: .004"-.006"). We recommend you purchase an OEM Kawasaki KLX140 Service Manual to assist you when installing this camshaft.

As the leader in innovation, design and development of aftermarket high-performance camshafts, Hot Cams is certain to provide the added boost that enthusiasts are looking for.

Designed, dyno proven and made in the USA, Hot Cams performance camshafts are one of the most economical, reliable and easy to install ways to add a 5-10% power gain to your bike.

Stage 1: These cams provide better low RPM torque, pulling power, and throttle response.

Stage 2: These cams will provide improved full throttle torque and horsepower starting at 4000 RPM and up.

Solid reliability and easy installation. This manual tensioner is a good upgrade for any modified motor, especially if it is ridden hard.

A new gasket is included.

Barnett high performance clutch kit includes drive plates, carbon fiber friction plates, and heavy duty springs.

A full set of EBC friction plates. Make sure to order a new gasket as well.

• The Core Manual TorqDrive clutch delivers unprecedented performance, tuning and durability
• TorqDrive provides more disks in less space, allowing up to four additional friction disks over stock
• More frictions = more torque capacity, thus unlocking the full power of your engine without the need to add stiffer pressure plate springs
• Provides more consistent clutch lever feel and behavior
• Can be set up to maintain a stock, or lighter than stock, lever pull depending on engine tuning
• Rekluse sleeves eliminate basket wear and notching
• Proven in racing at the highest levels
• Made in the U.S.A.

In this kit you will get 4 factory replacement bolts to replace any broken or damaged clutch pressure plate bolts on your DR650.

It can be easy to over torque these bolts if not done properly. If one of these bolts is damaged on your DR650, we highly recommend replacing all 4 to prevent any future failures down the trail.

This kit includes one OEM drive plate retaining wire & one OEM inner steel drive plate.

If you've ever changed the clutch on a DR650 you will be familiar with the extra steel plate at the bottom of the stack that is locked in place by a very thin metal wire.

Generally, when you do a clutch replacement on the DR650, you do not need to remove or replace these items. If you do need to (or if you have already) you will come to realize this wire is not very strong and is prone to breaking if not treated with care during the removal / installation process.

RadiusX is a high performance centrifugal auto clutch combining our TorqDrive and EXP technologies. TorqDrive provides more clutch disks in less space, allowing for maximum performance within your bike’s existing clutch footprint. You retain full control of shifting and use of your clutch lever with no compromise in power delivery.

Features:

• Dead-on clutch engagement every time
• Take off and stop in gear without using clutch lever – no more stalls
• Experience maximum power delivery
• Confidently navigate traffic and slow speed conditions
• TorqDrive® clutch pack delivers higher torque capacity and increased power transfer
• Rekluse sleeves eliminate basket wear and notching
• Standard clutch lever function with full override
• No modification to stock components
• Shifting transmission remains unchanged (clutch lever use is recommended for shifting)

• Cork-based clutch material impregnated with aluminum particles to increase wear life and heat resistance
• Highly compressed construction avoids swell and clutch drag
• Ideal for general-purpose street/sport/touring bikes
• Kit includes complete engine set of friction plates only
• For use with manufacturer's recommended drive case oil.

Barnett high performance clutch set. Includes 8 Kevlar friction plates, the 7 'loose' steel drive plates, stronger springs and a high quality clutch cover gasket.

Barnett clutch springs are made from the finest materials available.

Heavy Duty Barnett clutch springs are pre-set, shot-peened, and heat treated for performance and durability.

Dragging clutch? Hard to find neutral? Maybe it feels like it doesn't fully release. These problems can be caused by worn thrust washers in the clutch assembly. Most DR650s show wear on these items. Kit includes #1, #2 and #3 in the diagram.

Designed to improve the life and durability of your clutch, Barnett's "Dirt Digger" provides better rideability with less slippage compared to stock.

• Kevlar friction plates
• Tempered steel drive plates go through a vibratory de-burring process and then are quality checked for flatness to provide optimum performance.
• Heavy duty clutch springs are pre-set, shot-peened, and heat treated for performance and durability.

Heavy-duty springs help prevent clutch slip in high-performance motors.

• Custom wound from chrome-silicon wire
• Preset for long life
• Higher spring seat pressure to resist clutch slip

The EBC DRC kit is the best way to reset your bike’s clutch to the exact as new standard sizing. Replacing just the plates can work but new clutch springs are always better and springs get tired and can cause slippage plus the separator steel plates from EBC are pin-planished, forming tiny indents in the steel which improves the spread of oil around the clutch surfaces.

Includes:

• Friction plates with EBC unique alloy article impregnated clutch facings that wear longer and resists burning.
• Pin planished steel intermediate plates.
• New 10-15% uprated heavy-duty Clutch springs. 

Complete set of friction plates, HD springs and steel separator plates prevent premature driven plate wear, oil muddying and loss of stack height. Built with swaged aluminum carriers that spread the load on the clutch basket and prevent clutch basket "dogging". Anti-swell, alloy impregnated heavy-duty facings for smooth clutch action. Allows modulation, unlike paper clutches which tend to snatch. Don't forget to add a fresh gasket.

Heavy duty springs help prevent clutch slip in high-performance motors.

• Custom wound from chrome-silicon wire
• Preset for long life
• Higher spring seat pressure to resist clutch slip

Complete set of friction plates, HD springs and steel separator plates prevent premature driven plate wear, oil muddying and loss of stack height.

Built with swaged aluminum carriers that spread the load on the clutch basket and prevent clutch basket "dogging".

Anti-swell, alloy impregnated heavy-duty, cork-based facings for smooth clutch take-up, and allows engagement modulation, unlike paper clutches which tend to snatch.

• 15% stiffer than original
• Minimize clutch slip
• Reduce plate wear
• Improve power to ground

Heavy duty springs help prevent clutch slip in high-performance motors.

• Custom wound from chrome-silicon wire
• Preset for long life
• Higher spring seat pressure to resist clutch slip

The EXP disk is the magic ingredient behind the functionality and benefits of Rekluse auto clutches. About 10 years ago, Rekluse introduced an innovatively redesigned version of its revolutionary auto clutch technology with EXP 3.0. The years of racing, testing and development since have led to Rekluse’s most refined auto clutch experience yet; Introducing EXP 4.0.

No More Stalling:
Using principles of centrifugal force, EXP technology automatically engages and disengages the clutch based on engine RPM. With EXP, riders can start and stop without touching the clutch lever. EXP automatic clutch technology provides riders precision throttle control, maximum traction and confidence to maneuver any obstacle on the track, trail, or road.

Less Arm Fatigue:
You don’t have to clutch as often, which preserves your arm for longer rides.

Tunable to Fit Your Riding Style:
Each auto clutch is optimized for each bike model as it comes from the factory, and EXP 4.0 has been developed and tested in a wide range of late-model motorcycles. However, everybody rides differently, so they made sure EXP technology can be fine tuned. They offer different spring and wedge options so riders can further adjust their clutch’s performance. Some riders like the clutch to engage just above idle, while others like later engagement.

Clutch Lever Is Still Functional At All Times:
It is possible to fully override the auto functionality at any time. You can pull the lever in, build RPMs, pop the clutch out and raise the front tire just like normal.

Have More Fun:
You don’t have to worry about covering your clutch to prevent stalls all the time. You are free to relax and enjoy the ride, having one less thing to think about.

Our kit includes 5 EBC friction plates which eliminates the judder spring assembly by replacing it with a 5th friction plate.

Heavy duty clutch springs by Barnett are included it this kit which will significantly decrease wear under high stress conditions.

Includes genuine Honda friction plates, drive plates, and clutch springs.

The Dirt Racer Complete Clutch Rebuild Kit is the ultimate package for your Yamaha, here's why:

'Stack Height' is the all important factor when renewing a clutch and riders are always best to buy a complete kit instead of separate single plates as sold by manufacturers. Replacing just the worn plate (or plates) may not even get close to rebuilding your clutch to its original stack height and all you get is clutch slip and the job has to be done again.

• Complete set of stack height controlled anti-swell friction plates
• The friction plates are forged allow with wide "Ear" construction to spread the load in the clutch basket and prevent "Dogging" (when the ears cut into the allow clutch basket) which causes a rough clutch, promotes slippage plus it ruins an expensive part of your engine
• EBC unique alloy article impregnated clutch facings that wear longer and resist burning
• 15% stronger heavy duty, shot peened clutch springs to clamp those plates together firm and strong for the life of your clutch

Since 1948, Barnett clutch plates and springs have been made from the finest materials available.

• 6 Kevlar friction plates
• 5 Steel drive plates
• Clutch springs
• Clutch cover gasket

Replacement friction plates and drive plates.

Heavy duty springs help prevent clutch slip in high-performance motors.

• Custom wound from chrome-silicon wire
• Preset for long life
• Higher spring seat pressure to resist clutch slip

Designed to improve the life and durability of your clutch, Barnett's "Dirt Digger" provides better rideability with less slippage compared to stock.

• Carbon fiber friction plates
• Tempered steel drive plates go through a vibratory de-burring process and then are quality checked for flatness to provide optimum performance.
• Heavy duty clutch springs are pre-set, shot-peened, and heat treated for performance and durability.

Hinson Clutch Plates available as a set of just Fiber Plates or just Steel Plates or as a complete set including both.

Hinson Clutch Components sells the best clutch components available in the world. Hinson equipped machines have won 224 National and World Championships in our 20 years of business.

• Optimum hook up with minimum heat build up provides high performance
• Developed with and recommended to enhance the performance of Hinson clutch baskets, inner hubs, and pressure plates
• Exceptional production tolerances and flatness
• All fiber plates use organic non-abrasive materials to avoid damage to rest of motor as plate materials break down and are circulated through engine by oil
• Can be used with OEM baskets, inner hubs, and pressure plate

Complete set of friction plates, HD springs and steel separator plates prevent premature driven plate wear, oil muddying and loss of stack height. Built with swaged aluminum carriers that spread the load on the clutch basket and prevent clutch basket "dogging". Anti-swell, alloy impregnated heavy-duty cork-based facings for smooth clutch take-up. Allows modulation, unlike paper clutches which tend to snatch.

• Cork-based clutch material impregnated with aluminum particles to increase wear life and heat resistance
• Highly compressed construction avoids swell and clutch drag
• Ideal for general-purpose street/sport/touring bikes
• Kit includes complete engine set of friction plates only
• For use with manufacturer's recommended drive case oil.

DP Premium Clutch Kit is engineered to provide superior performance compared to any original equipment manufacturer (OEM) or aftermarket clutch. DPK kits come equipped with friction plates, steel drive plates, and clutch springs, with the exception of those OEM clutches that feature a reusable diaphragm spring.

Each clutch kit is packaged in a foam-lined hard plastic case, ensuring protection of the components prior to installation. This case can also be utilized for the storage and transportation of parts, tools, or other items after the clutch has been installed. The kits are delivered ready for racing, eliminating the need to pre-soak plates in oil.

Designed to promote ultra-smooth power delivery, these kits incorporate exclusive high-heat friction materials that ensure fade-free performance. The friction compounds are specifically formulated for optimal performance in off-road and dual-sport motorcycles, and they are more durable than OEM plates. The steel drive plates are designed not to expand, fade, or contribute to clutch swell, as can occur with stock aluminum plates, and offer an extended lifespan ranging up to 300% more than standard plates.

The increased weight of the steel plates enhances the flywheel effect, aiding in starting and traction without muddying or contaminating the oil.

These clutch springs are precision-wound utilizing high-quality chrome silicone wire. They are heat-treated and shot-peened to maximize longevity, with each spring meticulously designed to prevent slippage while providing robust spring rates that improve the feel and ease of clutch operation. 

Remember to use a new clutch cover gasket during installation.
 

Replace your worn out clutch with a high quality Clutch Kit. This kit includes new friction discs for your clutch pack.

Please note: kit includes friction discs only, steel plates and springs not included.

• Complete set of friction plates, steel plates, and springs
• Heavy-duty springs help prevent clutch slip
• Restores proper stack height, fixes clutch slip caused by wear and tear

This is an extended version of the stock DR650 clutch release arm that is manufactured by Suzuki.

Upgrading to a longer clutch release arm will lighten the pull of the clutch lever through means of increased leverage. This means less fatigue, quicker clutch engagement, easier clutch modulation and longer rides.

The extended clutch arm will not offer a drastic change in clutch pull. If you're looking for a major change in clutch pull at the lever, we recommend getting a Magura hydraulic clutch kit.

From Barnett, the number one name in motorcycle clutches since 1948, we now offer a complete high performance clutch set. This includes Kevlar friction plates, steel drive plates and stronger springs.

The Rekluse EXP employs the same EXP assembly as their premier product; the difference is that it fits into your stock clutch assembly, saving you money! Now you can enjoy the benefits of Rekluse auto-clutch technology on your KLR.

An auto-clutch automatically feeds out the engagement of the clutch using centrifugal force. This allows you to start and stop without touching the clutch lever. The automatic feed is fully adjustable to suit the rider's needs while retaining full manual override with the clutch lever. This automatic feed delivers easier on/off throttle transitions, improved traction, better control, and more confidence.

Complete set of friction plates, HD springs and steel separator plates prevent premature driven plate wear, oil muddying and loss of stack height. Built with swaged aluminum carriers that spread the load on the clutch basket and prevent clutch basket "dogging". Anti-swell, alloy impregnated heavy-duty facings for smooth clutch action. Allows modulation, unlike paper clutches which tend to snatch. Don't forget to add a fresh gasket.

• Complete set of friction plates, steel plates, and springs
• Heavy-duty springs help prevent clutch slip
• Restores proper stack height, fixes clutch slip caused by wear and tear

Replace your worn clutch plates and springs to reduce fade and slip.

• Complete set of friction plates, steel plates, and springs
• Heavy-duty springs help prevent clutch slip
• Restores proper stack height, fixes clutch slip caused by wear and tear

Heavy-Duty clutch springs

• 15% stiffer than original
• Minimize clutch slip
• Reduce plate wear
• Improve power to ground

This tool helps ease the pain of accessing the neutral safety switch. This holder is the quickest and easiest tool out there to get a grip on that hard to handle hub.

Laser cut to the exact pattern that EBC makes their clutch plates from, it makes loosening and re-tightening the clutch nut a breeze, and minimizes the likelihood of damaging the clutch hub.

Convenient tool to hold the clutch basket when servicing your clutch

This holder is the quickest and easiest tool out there to get a grip on that hard to handle hub.

Laser cut to the exact pattern that EBC makes their clutch plates from, it makes loosening and re-tightening the clutch nut a breeze, and minimizes the likelihood of damaging the clutch hub.

Made from medium carbon steel with hardened jaws. It features spanner pins and the jaws open up to 5" wide. It's ideal for holding clutch hubs, flywheels, gears, sprockets, etc. Made by Motion Pro.

• Features 8mm spanner pins
• Jaws open up to 5 inches wide
• Recommended for square tooth style clutch hubs
• Not recommended for v-groove or half round style clutch hubs

Need to remove your clutch assembly? This holder is the quickest and easiest tool out there to get a grip on that hard to handle hub. Laser cut to the exact pattern that EBC makes their clutch plates from, it makes loosening and re-tightening the clutch nut easy. All of that and no worries about doing any damage to your expensive clutch hub.

Need to remove your clutch assembly to get at that dreaded neutral safety switch? This holder is the quickest and easiest tool out there to get a grip on that hard to handle hub. Laser cut to the exact pattern that EBC makes their clutch plates from, it makes loosening and re-tightening the clutch nut easy. All of that and no worries about doing any damage to your expensive clutch hub.

Bottom line, if you have to hold your clutch hub to remove it, there is no better way to do it.

Outer Clutch Cover O-Ring, Inner Clutch Cover Gasket, Stator Cover Gasket.

Sold individually, not as a kit

New Bearings for your DRZ400.

If you are in the lower end doing work, new bearings are cheap insurance for all that hard work.

• Hot Rods complete stroker crank assembly includes +4mm stroke for maximum power and performance output.
• Hot Rods constructs their complete stroker crank assembly to meet or exceed OEM specifications for maximum durability.
• Hot Rods stroker cranks are completely rebuildable and have been trued to within 0.001" from the factory.
• The Hot Rods stroker crank increases the stock displacement to 424cc when used with the stock bore piston or 462cc when used with a 94mm big bore kit.
• Main bearings sold separately.

This will not fit the DRZ400 kick start models. Nothing is available for the kick start models.

This is a completely rebuildable stroker crank (3mm additional stroke) turns your mild mannered 250cc motor into a 263cc trail shredding monster! OK, maybe not, but sure makes it a fun machine.

Want the COMPLETE package? Order a Big-Bore kit to go with your stroker! That will give you a 308cc ripper! That is 24% larger than the stock 250. This package includes the Athena Big Bore Kit plus the 3mm Hot Rods Stroker Crank with new Genuine Yamaha crank bearings.

You will need to tune your EFI with something like the Power Commander V to get the most out of your Stroker kit.

For stock bore Hot Rods highly recommends you use the Vertex Stroker Piston Kit.

Billet plugs for your left side case. 

Includes both the timing mark plug and the crankshaft access plug.
 

It is a good practice to replace your sealing washer with every oil change. These 10 piece kits are made up of 5 Copper washers and 5 Aluminum washers. The manufacturer recently decided to make half of the kit Copper washers as that is the material of choice for many OEM manufactures. This gives you the opportunity to decide which you prefer, but either will work great at creating a leak-free seal between the case and the drain plug.

GoldPlug is the gold standard in engine protection.

Stainless steel drain plug with an extremely strong magnet that picks up metal flakes in your oil.

10MM Thread for frame drain.

It is a good practice to replace your sealing washer with every oil change. These 10 piece kits are made up of 5 Copper washers and 5 Aluminum washers. The manufacturer recently decided to make half of the kit Copper washers as that is the material of choice for many OEM manufactures. This gives you the opportunity to decide which you prefer, but either will work great at creating a leak-free seal between the case and the drain plug.

Extra protection for your motor. A strong magnet at the end of the plug picks up metallic flakes in your oil.

A 10-pack of drain plug sealing crush washers. Replace your sealing washer at every oil change to prevent a leak.

TW200 billet oil drain cap plug. 

Nice billet aluminum replacement for the old cast oil drain cap.