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Engine

CRF150R '07 - '25 CRF450L '19 - '25

Providing unbeatable performance and exceptional value, Hi-Flo is the best-selling brand of aftermarket filters for motorcycles, scooters, and ATVs worldwide.

Grab our 5-pack and save both time and money!

Ships same business day
$15.95
Africa Twin (CRF1000L) '16 - '19 Africa Twin (CRF1000L) Adventure Sport ES '18 - '19 T7 Ténéré 700 '20 - '25 CB500X '13 - '25 NC700X '12 - '25
  • The original Hiflofiltro factory was founded in 1955 and has been manufacturing filters for the OEM motor industry since 1963.
  • Constructed using the best materials available.
  • With the experience of more than five decades, constant research and development and featuring a completely modern production facility, Hiflofiltro offers some of the best quality filters in the world.
  • TUV approved and production monitored to ensure OEM or better quality.
  • Sold as a package of 5 oil filters.
Ships same business day
$35.95
DR650 '96 - '25

This is one of the few plastic parts on the DR650 that can ruin your day if it breaks or fails on you. This gear helps drive the oil pump to circulate oil throughout your entire motor, without it, your motor will fail entirely. The idler gear is not known for being a common failure point in the DR650 motor but, it has failed riders in the past. Usually in the form of a broken gear or stripped teeth. Upon inspection, look for any kind of crack, chipped or missing teeth on the gear. It is not a complicated repair to swap an old gear for a new one, as the best time to replace it is when you've opened up the clutch side case cover for another repair i.e., (NSU screws or clutch hub bushing replacements). This is an O.E. Suzuki part.

Ships same business day
$28.95
  • Protect your DR650 from overheating.
  • Inline temp block kit works with Trail Tech computers Striker, Vapor, Voyager, Voyager Pro, and all TTO temp meters. 
  • Installs between the oil cooler and top oil supply line, giving a cooled oil temp reading.
  • Includes 3 new o-rings, and 2 longer bolts, as well as the Trail Tech m6x1.0 temp prob.
Ships same business day
$54.95
DRZ400 '00 - '03 DRZ400S '00 - '25 DRZ400SM '05 - '25 DRZ400E '00 - '07

Always a good idea to put in a new set of Oil Change O-Rings at the first sign of any leakage. This package gives you the three most important: oil filter cap and the one behind the filter as well as the one on the filler cap. All are new OEM Suzuki O-Rings.

Ships same business day
$9.95
WR250R '08 - '18 WR250X '08 - '11

This kit includes the large O-Ring that goes on the end of the filter and the small O-Ring that seals the hole just above that. Both are factory Yamaha parts.

Ships same business day
$13.95
DR650 '96 - '25

Fresh o-rings to ensure your DR650 stays oil-tight and leak free. Includes one of each: oil filter o-ring, filter cover o-ring and filler cap o-ring

Ships same business day
$9.95
KLR650 '87 - '18

Put fresh O-rings on your KLR when you do your next oil change. Here you have new ones for the Oil Filler and the Oil Filter Housing Cover.

Ships same business day
$10.95
DR200 '96 - '25

Fresh o-rings ensure a tight seal and no oil leaks.

Oil Change Kit includes O-rings for: Filler Cap, Filter Cover, Strainer Cap and Filter Seal.

Valve Inspection Kit includes O-rings for: Valve Inspection Caps, Timing Inspection Cap and Timing Plug Cap.

Choose Kit
Ships same business day
$11.95
XT250 '08 - '25

Here are the O-Rings you need when you perform an oil change. These go inside the oil filter housing cover.

Replacing these O-Rings regularly will help keep your engine from seeping oil.

Ships same business day
$16.95
XT225 '92 - '07 TW200 '87 - '25

Here are the O-Rings you need when you perform an oil change. The largest one and the smallest one go inside the oil filter housing cover. The second largest one goes on your oil drain plug. The second smallest one goes on your oil fill plug. Replacing these O-Rings regularly will help keep your engine from seeping oil.

Ships same business day
$29.95
XR650L '93 - '25

Fresh O-rings to ensure your XRL stays oil-tight and leak free. The Oil Change O-Ring kit includes a filter cover O-ring and a filler plug O-ring.

Ships same business day
$6.95
XT225 '92 - '07 TW200 '87 - '25

Adjusting your valves or setting your cam chain tension? Here are the O-Rings that fit in the TDC sight plug and the crankshaft nut access plug.

Add Valve Clearance Feeler Gauge Set
Add Valve Adjust Wrench
Ships same business day
$11.95
XR650L '93 - '25

Fresh O-rings to ensure your XRL stays oil-tight and leak free. The Valve Cover Kit includes 4 new valve cover O-rings.

Ships same business day
$29.95
DR650 '96 - '25

A pair of factory OEM o-rings for the valve covers. Your valve cover o-rings live in one of the hottest parts of the engine and have a pretty short life. Replace them on your next valve adjustment to prevent oil leaks.

Ships same business day
$11.95
XT225 '92 - '07 TW200 '87 - '25

Time to adjust your valves? Here are the O-Rings that fit in your Valve Covers on your Yamaha. Keep the oil inside your motor and grime out! This kit includes both O-Rings. Be sure to grab the feeler gauges and a special wrench to aid in adjusting your valves.

Ships same business day
$19.95

Raises compression from stock 9.5:1 to 10.5:1 for more power and snappier response. The high quality forged piston from JE is almost a full ounce lighter than the stock cast piston. This makes for less vibration and a smoother running motor. Fits the standard size stock bore.

Ships same business day
$269.95

Raises compression from stock 9.5:1 to 10.5:1 for more power, torque and snappier engine response. The high quality forged piston from JE is almost a full ounce lighter than the stock cast piston. This makes for less vibration and a smoother running motor. Includes rings, pin, clips, and top end gasket set with valve stem seals and metal base gasket. Fits the standard size stock bore.

Ships same business day
$294.95
WR250R '08 - '18 WR250X '08 - '11

If you're plannig to or already have a stroker crank setup in your Yamaha WR250R/X, you'll need this stroker piston.

Features:

  • All piston skirts are coated with a hi-tech Molybdenum Disulphite coating for faster break-in time and increased piston life
  • Cast Replica piston kits are gravity cast aluminum alloy (not forged) with 18% silicone content, which produces an extremely light but very strong piston
  • Forged Replica pistons are forged from 2618 aluminum for superior strength and durability
  • Forged High Compression pistons improve power and torque across entire rpm range
  • Forged Big Bore pistons increase engine’s displacement, torque, and peak horsepower
  • Forged Replica pistons are forged OE replacements
  • All pistons are heat treated with a T-5 hardening and tempering cycle
  • Replica pistons and all rings are OEM replacements
  • Kits include piston, rings, wrist pin and circlips
  • Two stroke replacement rings are sold individually (Example if your piston has two rings you will want to order two rings)
  • Four-stroke piston rings sold as a set
Ships in 3-5 business days
$241.95

Raises compression from stock 9.5:1 to 10.5:1 for more power and snappier response. Highest quality Wiseco pistons are forged in the USA. Fits the standard size stock bore.

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

Ships in 3-5 business days
$182.95

This kit provides much of the performance gain of our 130 kit but keeps you legal for racing classes that do not allow motors over 125cc.

  • Stock bore size Wiseco 54mm high compression 11:1 piston, rings, wrist pin, and clips
  • HotCams stage 1 performance camshaft
  • Includes top end gasket set
  • Piston fits into the stock bore; requires no modification to your cylinder!
Ships in 3-5 business days
$344.95
DRZ400 '00 - '03 DRZ400S '00 - '25 DRZ400SM '05 - '25 DRZ400E '00 - '07

Stock bore replacement pistons from Wiseco. You have your choice of the standard compression ratio of 12.2:1, or a high-compression ratio of 13.5:1.

This high-compression kit will run perfectly with standard pump Premium.

Kits include piston, rings, wrist pin and circlips.

Choose Option
Ships in 3-5 business days
$193.95

The Complete Top End Performance Kit includes:

10.5:1 compression JE piston with rings, wrist pin and circlips (the actual measured stock compression is only 8.7:1).
Stage 2 Web Cams high performance camshaft for more power (reground from brand new OEM Suzuki camshafts).
Top end gasket set with metal base gasket.

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

Ships same business day
$899.95
KLX250S '06 - '14 CRF150R '07 - '18 Ruckus (NPS50) '03 - '16 DRZ400 '00 - '03 CRF250L '13 - '25 SV650 '99 - '12 V-Strom (DL650) '04 - '25 DRZ400S '00 - '25 DRZ400SM '05 - '25 DRZ400E '00 - '07 CRF250L Rally '17 - '25 CRF250X '04 - '25 CRF250R '04 - '25 CRF450X '02 - '25 CRF450R '02 - '25 KLR650 '87 - '18 KLX300 '21 - '25 KLX300R '21 - '25 KLX300SM '21 - '25

Higher pressure in the cooling system, raises the coolant boiling point and increases protection from coolant loss due to overheating.

23 PSI - 1.6 Bar.

Ships same business day
$29.95
950 Adventure '03 - '06 990 Adventure '07 - '13

Available in orange

Manufactured by Samco Sport UK - the world leader in silicone hose, with over 20 years experience.

  • Hand wrapped and 100% visually inspected in the UK
  • European grade high-temperature silicone guaranteed to 356°F
  • Improved insulation promotes radiator efficiency and improves engine cooling
  • Three layers of reinforcement fabric offer high burst pressures and provide better debris/crash resistance
  • Used by leading MX/Enduro and Off-road teams
Please contact us for availability information
$226.95

High-performance clamp kits feature marine-grade 18/8 stainless steel clamps with rounded edges, smooth inners and polished surfaces; contain all clamps necessary to complete installation of radiator hose kit.

Ships in 3-5 business days
$48.95
Africa Twin (CRF1000L) '16 - '19

Moose Race Fit Radiator Hose Kit

  • Manufactured by Samco® Sport UK – the world leader in silicone hose, with over 20 years experience
  • Hand wrapped and 100% visually inspected in the UK
  • European grade hi-temperature silicone guaranteed to 356°F
  • Smooth flow and improved insulation promotes radiator efficiency and improves engine cooling
  • Single-molded, Y-piece hoses eliminate the need to reuse OEM 3-way fitting, which reduces weight and eliminates leak points
  • Single-molded, T-piece hoses eliminate vulnerable threaded leak points and reduce weight
  • Three layers of reinforcement fabric offer high burst pressures and provide better debris/crash resistance
  • Zero block tooling technology results in clear and open hose junctions, free from dangerous and restrictive flashing
  • Used by leading MX/Enduro and Off-road racing teams
  • UV-stable colors don’t fade with heat or sun and are color matched to OEM brands
  • Clamps made from 18/8 marine-grade 100% stainless steel have rounded edges that prevent the clip from cutting into the hose and a non-perforated band prevents clip from biting into the hose
  • Kit contains hoses and necessary clamps
Choose Color
Please contact us for availability information
$228.95
WR250R '08 - '25 WR250X '08 - '11

Keep yourself COOL with a set of Moto Hoses. Moto Hoses are what you need to handle the heat that your bike is putting out whether you're pushing it to the limit or just stuck in slow city traffic.

Each Kit Contains:

  • Color matched carb vent hoses
  • Color matched fuel line
  • Color matched coolant overflow hose
  • Moto Hose is used by Rock River Yamaha and Honda of Troy motocross teams
  • Moto Hose for the WR250R/X is available in Blue or White
Choose Color
Please contact us for availability information
$74.95
  • High-performance silicone radiator hose kits
  • Each kit features improved flow for better cooling – up to 9°F cooler
  • Color-matched to manufacturer's production colors
  • Each kit is handcrafted in the UK using the best silicone and fabric reinforcement materials and are 100% visually inspected before leaving the factory
  • High-performance clamp kits (sold separately) feature marine-grade 18/8 stainless steel clamps with rounded edges, smooth inners and polished surfaces; contain all clamps necessary to complete installation of radiator hose kit
Choose Color
Please contact us for availability information
$276.95

A direct replacement for the stock KLR hoses that tend to crack and leak after a few years.

These silicone hoses are custom made for us. Silicon hoses operate at much higher temperatures and pressures than other rubbers, they don't perish, and they look great!

Select Year and Color
Ships same business day
$139.95
DRZ400S '00 - '25 DRZ400SM '05 - '25
  • High-temperature silicone guaranteed to 356° F
  • Smooth flow and improved insulation promotes radiator efficiency and improves engine cooling
  • Single molded, Y-piece hoses eliminate the need to reuse OEM 3-way fitting which reduces weight and eliminates leak points
  • Three layers of reinforcement fabric offer high burst pressures and provided better debris/crash resistance
  • UV stable colors don't fade with heat or sun and are color matched to OEM brands
Ships same business day
$99.95
WR250R '08 - '18 WR250X '08 - '11

DRC is one of the leading manufacturers of silicone hose kits for motorcycles.

  • Durable silicone radiator hose for dirt bikes
  • Available for MX, ED racers and street dirt bikes
  • Smooth inner diameter allows for increased coolant flow
  • Printed white DRC logo. Available in red or blue colors
Choose Color
Ships same business day
$62.95
CRF250L Rally '17 - '25 CRF230L '13 - '25

Genuine Honda replacement thermostat

Add Radiator Cap - High Pressure
Please contact us for availability information
$44.95
KLR650 '87 - '18

Our very own version of the popular thermostat bypass for the KLR. Gives faster warm up and more constant engine temperatures. Eliminates the wildly fluctuating engine temperature gauge. A more controlled and constant temperature is easier on your piston and cylinder and may prevent or reduce oil consumption. We use a 180 degree thermostat instead of the stock (too cold!) 160 degree unit. Warmer coolant temperature promotes better fuel vaporization and can increase fuel economy.

Our bypass system mounts the new thermostat in a small billet extension housing right where the stock thermostat is now. There is no bulky external housing to hang off the motor. The bypass hose tees in to the lower radiator hose using a length of quality high temperature silicone hose. It all makes for a clean simple installation.

Ships same business day
$129.95

The complete Thermo Control package - Our in-house designed Thermostat Bypass kit, a set of Custom Silicone Hoses and a Hi-Pressure Radiator Cap. All combined to help your KLR cooling system be at the top of its game. The Thermostat Bypass kit includes a thermostat with a higher temperature rating that will keep the motor more in its happy spot.

The Silicone hoses are stronger than the stock rubber units and will better resist cracking and leaking.

Select Year
Ships same business day
$209.95
DRZ400 '00 - '03 DRZ400S '00 - '25 DRZ400SM '05 - '25 DRZ400E '00 - '07

Clymer repair manuals provides step-by-step procedures based upon the complete disassembly of the motorcycle. This hands-on experience combined with extensive research results in a manual that is both user-friendly and detailed. Hundreds of original photos and illustrations guide the reader through every job.

Ships same business day
$49.95

Clymer manuals are the most user-friendly repair manuals. They are written for the do-it-yourself-er as well as the experienced mechanic by industry experts. Step-by-step instructions based on the complete disassembly of the machine.

Please contact us for availability information
$51.95

Clymer motorcycle repair manuals are written specifically for the do-it-yourselfer. Whether it's routine maintenance or more extensive repairs involving engine and transmission disassembly, Clymer repair manuals provide all the information you need about your motorcycle. With step-by-step procedures, detailed photography and extensive use of exploded views, each manual is based on the complete disassembly of the machine. Unlike OEM manuals, which are purposely designed for the professional technician with an impressive array of specialized tools, equipment and knowledge, Clymer manuals are designed for the first-time user.

The DR650 manual features 278 pages of color wiring diagrams, illustrations and photographs. There are 15 chapters, ranging from general information and troubleshooting to brakes, suspension and full color wiring diagrams.

Ships same business day
$51.95
DR350 '90 - '25 DR350S '90 - '93 DR350SE '94 - '99

Clymer manuals are the most user-friendly repair manuals. They are written for the do-it-yourself-er as well as the experienced mechanic by industry experts. Step-by-step instructions based on the complete disassembly of the machine. This manual in written to cover 90-94 models but nearly all of the information will apply to newer models also.

Ships same business day
$39.95
XR650L '93 - '25 XR650L '91 - '00

The Clymer shop service and repair manual. It has all the necessary info to do any maintenance or repairs to your XR650L.

Ships same business day
$44.95

Clymer repair manuals provides step-by-step procedures based upon the complete disassembly of the motorcycle. This hands-on experience combined with extensive research results in a manual that is both user-friendly and detailed. Contains hundreds of original photos, exploded views, drawings, specifications and charts to illustrate each job. Also features shortcut repairs and high-performance modifications.

Whether you're interested in routine maintenance tasks, troubleshooting, or more extensive repairs, the in-depth coverage provides indispensable information about your KLR650.

Select Year
Ships same business day
$49.95

Genuine Honda Factory Service Manual specifically for your CRF250L

Choose Manual
Please contact us for availability information
$95.95

The genuine factory shop service and repair manual. This is the reference manual Honda dealers use in their service departments. It has all the necessary info to do maintenance or repairs to your CRF450L.

Please contact us for availability information
$105.95
Africa Twin (CRF1000L) '16 - '19

The genuine factory shop service and repair manual. This is the reference manual Honda dealers use in their service departments. It has all the necessary info to do maintenance or repairs to your Africa Twin CRF1000L.

Please contact us for availability information
$96.95

The genuine factory shop service and repair manual. This is the reference manual Suzuki dealers use in their service departments. It has all the necessary info to do any maintenance or repairs to your DR650.

Ships same business day
$96.95

This Official 2001-up Yamaha TW200 Trailway Factory Service Manual provides repair, maintenance and service information for 2001-up Yamaha TW200 Trailway motorcycles. Most of the information is useful for the 1987-2000 models as well.

Ships same business day
$90.95

Genuine factory shop service and repair manual. This is the reference manual Yamaha dealers use in their service departments. It has all the necessary info to do any maintenance or repairs to your XT250.

Choose Year
Ships same business day
$89.95
WR250R '08 - '18 WR250X '08 - '11

The genuine factory shop service and repair manual. This is the reference manual Yamaha dealers use in their service departments. It has all the necessary info to do any maintenance or repairs to your WR250R or X.

Ships in 1-2 weeks
$89.95
XR250R '96 - '04 XR400R '96 - '04

Repair manual for XR250R '86-'04 / XR250L '91-'96 / XR400R '96-'04.

Ships in 3-5 business days
$44.95
XT225 '92 - '07 TTR125 '00 - '03

With a Haynes manual, you can do it yourself…from simple maintenance to basic repairs. Haynes writes every book based on a complete teardown of the motorcycle. Haynes books have clear instructions and plenty of photographs that show each step.

  • Step-by-step procedures
  • Easy-to-follow photos
  • Complete troubleshooting section
  • Valuable short cuts
  • Color spark plug diagnosis

Complete coverage for your Yamaha Trail Bikes covering PW, RT, TT-R and XT225/350 models for 1981 thru 2000.

Ships in 3-5 business days
$37.95
XT225 '92 - '07 KLR650 '87 - '18 KLX250S '06 - '14 XR650L '93 - '25 XT250 '08 - '25 TW200 '87 - '25 KLX300 '21 - '25 KLX300R '21 - '25 KLX300SM '21 - '25

E3 Resistor Spark Plugs

  • Unique electrode shape maximizes the power created by the spark plug – Diamond Fire technology
  • Electrode is a combination of performance and technology that results in an improved flame kernel shape
  • This flame front ignites the bulk air/fuel mixture faster, moves heat into the combustion chamber faster and creates a more localized pressure front for faster pressure rise during the cylinder power stroke
  • The result is more complete combustion and an improvement in engine performance
  • A truly premium performance plug
  • Sold individually, unless otherwise stated.
Choose Spark Plug
Add Anti-Seize
Ships same business day
$9.95
DR650 '96 - '25

Direct replacement for old or broken stock spark plug caps.

Spark plug caps contain a resistor that can burn out with age. Fresh caps ensure your motor gets a strong spark.

  • Sold in pairs.
  • Adaptable thread size
  • 5k Ohm
  • Allowable wire diameter 7 mm-8 mm
  • 120° elbow
  • Spark Plug Resistor Cover - 10/12mm
Ships same business day
$12.95
DRZ400 '00 - '03 DRZ400S '00 - '25 DRZ400SM '05 - '25 DRZ400E '00 - '07

Keep your motor running right with fresh spark plugs!

NGK is one of the world's largest manufacturer of spark plugs, whose products are used as original equipment (OE) on countless motorcycle and automobile models.

  • High-quality materials and superior construction for serious power and reliability
    • Pure alumina silicate ceramic insulator provides high strength and better heat transfer
    • Deep-seated copper core for a wider heat range
    • Nickel alloy tip for longer life
    • Trivalent metal plating provides superior anti-corrosion and anti-seizing properties
  • Choosing the right high-quality plugs prevents fouling from running too cool and preignition from running too hot
  • NGK plugs available for almost every application and riding style
Add Anti-Seize
Ships in 3-5 business days
$8.95
SV650 '99 - '25 V-Strom (DL1000) '02 - '25 V-Strom (DL650) '04 - '25 DRZ400S '00 - '25 DRZ400SM '05 - '25 DRZ400E '00 - '07 DRZ400 '00 - '03

Keep your motor running right with a fresh plug.

A Dual Electrode spark plug will last longer than a single electrode plug because the wear is shared between the electrodes.

Choose Spark Plug
Ships same business day
$12.95
DRZ400 '00 - '03 DRZ400S '00 - '25 DRZ400SM '05 - '25 DRZ400E '00 - '07

Iridium spark plugs are made with premium quality materials.

Iridium plugs last longer than standard ones, meaning you won't have to replace them as often.

  • The ultimate in the evolution of spark plug technology and performance from an industry leader
  • The iridium electrode is 25% smaller than a platinum electrode, and it's just 1/4 the size of a conventional nickel electrode
  • Ultra-small diameter center electrode reduces voltage requirement and extends ignition system life
  • Metal shell plating has enhanced anti corrosion qualities

Sold individually, unless otherwise stated.

Choose Spark Plug
Add Anti-Seize
Ships in 3-5 business days
$11.95
XR650L '93 - '25 XR250R '96 - '04 XR400R '96 - '04

This high quality socket from Motion Pro, is specifically designed to reach into the very small, deep space where the spark plug of the XR hides.

Normal sockets simply won't work in this case.

Add Anti-Seize
Backordered: Waiting for stock from suppliers to fulfill orders placed on or after July 2024
$22.95
Universal fit. May require additional adjustment or modification.

Hardened chrome vanadium steel with built in rubber insert to hold spark plug steady.

Thin wall bi-hex sockets designed to access narrow spark plug holes.

Fits 3/8" square drive and hex drive, 14mm, 16mm, 18mm, 21mm.

Choose Size
Ships same business day
$14.95

The starter bushing in the DR650 leads a tough life. Exhaust heat and minimal lube from the factory take their toll. Warp 9 has a high quality solution - a billet starter cover with a sealed ball bearing.

  • CNC machined starter endcap
  • Black anodized for good looks
  • High Speed Abec 3 double sealed roller bearing installed
  • Reduced amperage needed to start bike
  • Brushes will have extended life
Add Starter Brush Kit, Rick's Motorsport Electrics
Ships same business day
$68.95
DR650 '96 - '25

New starters that are manufactured to meet or exceed OEM specifications. Pull out your old starter, put in this new one and go riding. These units are built to provide a longer life than the OEM unit with these features:

  • The armature is insulated for rust and corrosion protection
  • Rubber seals on the top and bottom of the unit ensure a dry operation
  • 90/10 copper bushings
  • Extended shaft replaces long or short shaft OEM starters
Ships same business day
$149.95
XR650L '93 - '25

New starters that are manufactured to meet or exceed OEM specifications. Pull out your old starter, put in this new one and go riding. These units are built to provide a longer life than the OEM unit with these features:

  • The armature is insulated for rust and corrosion protection
  • Rubber seals on the top and bottom of the unit ensure a dry operation
  • 90/10 copper bushings
  • Extended shaft replaces long or short shaft OEM starters
  • Bolt on direct OEM replacement
Please contact us for availability information
$156.95
Universal fit. May require additional adjustment or modification.

A 3-pack of easy to apply strips measure the temperature of engine, suspension, and radiator components. Temperature range 149° to 248°

Ships same business day
$14.95
Universal fit. May require additional adjustment or modification.

Thread Chasers are designed to clean and re-cut damaged aluminum threads.

This kit contains the two sizes most common on metric motorcycles, M6x1.0 and M8x1.25.

Thread Chasers also remove dirt and metal shavings that become captured in thread grooves.

Uses 8mm or 10mm hex sockets, a Must for all tool kits.

Ships same business day
$5.95

This 3rd gear set is made for us by Nova Racing Transmissions in England to replace the fragile stock third gear set. These folks build complete transmissions for World Superbike teams among others, so we believe them to be highly qualified to build this set of replacement gears.

These gears are made from a high quality special alloy steel and then heat treated and superfinished. The mainshaft drive gear and the countershaft driven gear are sold only as a set.

Ships same business day
$499.95
DR650 '96 - '25

The long awaited Wide Ratio Transmission from Nova Racing. Now you can have your trail gearing without giving up your highway gearing.

Both sets are lower than stock in 1st and 2nd gear and taller than stock on 3rd thru 5th gears. Not only will Nova give you better gear ratios but the high quality components will shift smoother and engage more solidly. The tables below show each gear ratio and the original OEM ratios for comparison.

To help put the ratio changes into perspective switching from the OEM 15T to a 14T sprocket lowers the gearing by 7.1% in all gears. Switching from a 15T to a 16T raises the gearing by 6.6% in all gears.

Stock  Gearing  Ratio 
1st12/292.42:1 
2nd16/261.63:1 
3rd21/261.24:1 
4th21/211.00:1 
5th23/190.83:1 

The "A" gear set has an 8% wider gear ratio spread than stock.

"A" Set  Gearing  Ratio  From OEM  
1st12/302.50:1-3.3%
2nd16/271.69:1-3.7%
3rd19/231.21:12.3%
4th22/210.95:14.8%
5th24/190.79:14.3%

This product is not eligible for promotional pricing or discounts

Choose Gear Set
Ships same business day
$1,699.95
XT250 '08 - '25

Kit includes feeler gauges and wrench.

Please contact us for availability information
$24.95
CRF150F '03 - '25 CRF230F '03 - '25 DR650 '90 - '25 TW200 '86 - '25 XT225 '86 - '07 XT250 '08 - '25 DR350S '90 - '93 DR350SE '94 - '99 DR350 '90 - '99

A 'wrench style' tool to turn the 'square top' tappet screws. The wrench does a better job of holding the adjuster screw still while tightening the locknut. Slim and flat, this tool is easy to carry in a tool pack.

Ships same business day
$14.95
DR650 '96 - '25 CRF150F '03 - '25 CRF230F '03 - '25 TW200 '86 - '25 XT225 '92 - '07 XT250 '08 - '25 DR350S '90 - '93 DR350SE '94 - '99 DR350 '90 - '99
  • Allows precise valve lash adjustment without disturbing the setting when the lock nut is fastened
  • Knurled knob on adjuster drivers ensure a precise and secure grip
  • Integrated repositionable wrench handle holds the lock nut while the drivers are used to loosen or tighten the valve adjustment screw

Set includes:

  • (1) 10mm steel socket wrench
  • (1) 3mm square tappet adjuster
Ships same business day
$34.95
  • Allows precise valve lash adjustment without disturbing the setting when the lock nut is fastened
  • Knurled knob on adjuster drivers ensure a precise and secure grip
  • Integrated repositionable wrench handle holds the lock nut while the drivers are used to loosen or tighten the valve adjustment screw
  • Includes 10mm socket with straight slot adjuster
  • Fit motorcycles and ATVs with straight slot screw-type adjusters and 10mm lock nuts
Ships in 3-5 business days
$34.99
XR650L '93 - '25

Two feeler gauges on a single tool. Angled to make checking the clearances easier.

Stock valve clearances are .004" intake and .005" exhaust (.10mm int. and .13mm exh.)

Backordered: Waiting for stock from suppliers to fulfill orders placed on or after March 2024
$7.95

Getting ready to adjust your valves? Here is a set of feeler gauges to make the job a little easier. One tool has .002" & .003" gauges the other has .004" & .005" gauges. Yamaha lists the specs as follows: .002"-.004" Intake and .004"-.006" Exhaust, clearance measured when engine is cold.

Backordered: Waiting for stock from suppliers to fulfill orders placed on or after June 2024
$12.95
DR200 '96 - '25 DR650 '96 - '25

Two feeler gauges with angled ends to make checking the clearances easier. Stock valve clearances are .004" intake and .008" exhaust (.10mm in. and .20mm exh.)

Backordered: Waiting for stock from suppliers to fulfill orders placed on or after April 2024
$12.95

A set of feeler gauges so you can adjust the valves on your Yamaha. Yamaha says that when the bike is cold, the Intake should be between .002" and .004" and the Exhaust should be between .006" and .007".

This set includes one gauge with a .004" on one end and a .005" on the other for your intake side and another with a .006" and .008" for the exhaust side.

Backordered: Waiting for stock from suppliers to fulfill orders placed on or after April 2024
$12.95
Universal fit. May require additional adjustment or modification.
  • 26 straight blades
  • SAE and metric markings
  • Check for clearance on valves, ignition points etc.
  • Includes 26 blades varying in thickness from .0015"/.038 mm to .025"/.635 mm
Ships same business day
$12.95

Cylinder head upgrade. Features CNC machined port shapes, larger high performance valve seats and custom made valves. Valve sizes are increased from the tiny stock 33mm intake & 28mm exhaust to 36mm intake & 32mm exhaust. This is not a radical modification. These bigger valves bring the valve sizes up to what would normally be found on other brands of 650 singles.

Big Valve Heads are sold only on an exchange basis. We need your stock head for the next batch of modified heads.

  We strongly recommend checking valve to piston clearance when installing oversized valves.

Please contact us for availability information
$1,299.95
950 Adventure '03 - '06 990 Adventure '07 - '13

10mm diameter - Includes three valve shims of each size from 1.85 to 3.20 in .05 mm increments. 84 shims in total, 83 cents per shim!

Ships same business day
$69.95
SV650 '99 - '25 KLX250S '06 - '25 V-Strom (DL650) '04 - '25 CRF150R '07 - '25 Ruckus (NPS50) '03 - '09 Ruckus (NPS50) '11 - '16 WR250R '08 - '18 WR250X '08 - '11

7.48mm diameter - Includes three valve shims of each size from 1.20 to 3.50mm in .05mm increments.

141 shims in total. 0.57 cents per shim! Does your local dealer have the shims you need?

Ships same business day
$114.95
Africa Twin (CRF1000L) '16 - '19 DRZ400 '00 - '03 V-Strom (DL1000) '02 - '25 DRZ400S '00 - '25 DRZ400SM '05 - '25 DRZ400E '00 - '07

Includes three 9.48mm o.d. shims in each size from 1.20mm to 3.50mm in .05mm increments

Ships same business day
$114.95
KLR650 '87 - '18

K&L® shims exceed the maximum of the Apparent Rockwell Hardness "C" scale. Shims average 47.0 compared to the 46.0 maximum.

This kit fits KLR650 87-18 as well as other brands and models , please verify correct size for your model before purchase.

29mm diameter - Includes two valve shims of each size 2.30, 2.40, 2.50, 2.55, 2.60, 2.70, 2.80, 2.90, 3.00 and 3.10.  In a shim box.

20 shims in total. From K&L.

BMW / KAWASAKI / YAMAHA

Ships same business day
$219.95
KLR650 '87 - '18

For adjusting valve clearance on twin cam models. Holds valve spring collar down so adjusting pads can be removed. From Motion Pro, made from hardened alloy steel.

Ships same business day
$9.95
CRF150F '03 - '25 CRF230F '03 - '25

These valve springs are required when using the BBR High Performance camshaft for the CRF150/230F.

  • Built from the highest quality chrome-silicon wire
  • Fully shot-peened and preset for long life
Ships in 3-5 business days
$83.95
DR650 '96 - '25 DR200 '96 - '25

A set of four high quality valve stem seals.

Ships same business day
$26.95
DRZ125 '03 - '25 KLX125 '03 - '06

The key to getting your built DRZ/KLX motor to make big power.

  • Intake is 32mm (stock 30mm)
  • Exhaust is 28mm (stock 26mm)
  • Available with or without Heavy-duty valve springs
Choose Option
Please contact us for availability information
$89.95

4 custom made valves and 4 'Nickel Aluminum Bronze' valve seats. Valve sizes are 36mm intake (up from 32) & 32mm exhaust (up from 28). Requires professional installation.

  We strongly recommend checking valve to piston clearance when installing oversized valves.

Ships same business day
$379.95