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Engine

WARNING: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

240cc BBR Big Bore Kit

CRF230F '03 - '19
$299.95

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
WARNING: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

Angled Feeler Gauges

DR200 '96 - '19 DR650 '96 - '19
$12.95

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.)

WARNING: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

Athena 290cc Big Bore Kit

WR250R '08 - '18 WR250X '08 - '11
Add Power Commander V
$693.95
  • Aluminum cylinder designed with wider water jackets for better cooling
  • Forged hi-compression piston
  • Includes all necessary Rings, Clips, and Gaskets

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

WARNING: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

Athena 440cc Big Bore Kit

DRZ400 '00 - '19 DRZ400S '00 - '19 DRZ400E '00 - '19 DRZ400SM '05 - '19
Add Service Manual
$789.95
  • 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
  • Includes all necessary Rings, Clips, and Gaskets.
WARNING: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

Athena Gasket Sets

WR250R '08 - '18 WR250X '08 - '11
Choose Package
$163.95

Choose standard bore top end, big bore top end or a complete gasket set for the standard bore motor. These are high-quality gasket sets from Athena.

  • The Complete Gasket set for the stock bore does NOT include Oil Seals. Must purchase those separately.
  • The Top End Gasket set for the stock bore includes all the necessary gaskets, rubber parts and valve stem seals for a complete top end rebuild.
  • The Big Bore Top End set includes a base and head gasket
WARNING: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

Barnett Clutch Kit

DR200 '96 - '19
Add Engine Gaskets
$139.95

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
WARNING: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

Barnett Clutch Kit

WR250R '08 - '18 WR250X '08 - '11
$149.95

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.

WARNING: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

Barnett Clutch Kit

DR650 '96 - '19
$189.95

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.
 

WARNING: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

Barnett HD Clutch Springs

DR650 '96 - '19 CRF250L '13 - '16
Choose Option
$18.95

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.
 

WARNING: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

Barnett Dirt Digger Clutch Kit

CRF150R '07 - '19
$127.95

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.
WARNING: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

Barnett Dirt Digger Clutch Kit

950 Adventure '03 - '06 990 Adventure '07 - '13
$241.95

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

WARNING: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

Barnett "Dirt Digger" Clutch Kit

TTR125 '00 - '19
$109.95

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.
WARNING: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

BBR 130cc Big Bore Kit KLX110 / DRZ110

KLX110 '02 - '19 DRZ110 '03 - '05
$109.95

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
WARNING: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

BBR 143cc Big Bore Kit w/ Camshaft KLX110 / DRZ110

KLX110 '02 - '09 DRZ110 '03 - '05
Choose Year
$359.95

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
WARNING: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

BBR 150cc Piston & Gaskets

TTR125 '00 - '19
$155.95

Replacement piston kit and gasket set to freshen up your BBR 150 motor. Includes piston, rings, wrist pin, clips, head gasket and base gasket. This piston will not fit in the stock cylinder.

WARNING: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

BBR 160cc Big Bore Kit KLX110 / DRZ110

KLX110 '02 - '19 DRZ110 '03 - '05
$199.95

If you want a fire breathing KLX110, the BBR 160cc kit is the right choice. This kit allows the largest possible displacement available without the headaches of running a stroked crankshaft.

  • Aluminum Cylinder w/ oversized sleeve
  • Requires boring of your stock engine cases for the larger sleeve
WARNING: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

BBR Big Bore 150cc Kit, with Camshaft

TTR125 '00 - '19
$369.95

Complete kit with custom made cylinder and camshaft.

  • BBR aluminum cylinder with steel liner (bored, honed and ready to use)
  • 58mm piston, pin, clips, and rings
  • Includes head and base gasket
  • New (not reground) high-performance camshaft
WARNING: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

BBR Big Bore 175cc Kit

CRF150F '03 - '05
$289.95

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

 

    WARNING: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

    BBR Big Bore 195cc Kit

    CRF150F '06 - '19
    $249.95

    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
    WARNING: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

    BBR Big Bore Kit 120cc, with Camshaft

    XR100 '81 - '19 CRF100 '81 - '19
    $329.95

    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
    WARNING: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

    BBR Heavy Duty Clutch Springs

    TTR125 '00 - '19
    $24.95

    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
    WARNING: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

    BBR Heavy Duty Clutch Springs

    CRF100 '93 - '19 XR100 '93 - '19
    $24.95

    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
    WARNING: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

    BBR Heavy-Duty Clutch Springs KLX110 / DRZ110

    KLX110 '02 - '19 DRZ110 '03 - '05
    $26.95

    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
    WARNING: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

    BBR Heavy-Duty Valve Springs

    CRF150F '03 - '19 CRF230F '03 - '19
    $49.95

    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
    WARNING: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

    BBR High Performance Camshaft

    CRF150F '03 - '05 CRF230F '03 - '19
    $154.95

    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
    WARNING: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

    BBR Performance Camshaft

    TTR125 '00 - '19
    $149.95

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

    WARNING: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

    BBR Performance Camshaft KLX110 / DRZ110

    KLX110 '02 - '09 DRZ110 '03 - '05
    Choose Option
    $129.95

    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
    WARNING: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

    Big Bore 660cc Kit

    DR650 '90 - '95
    $249.95

    Wiseco 96mm piston with rings, wrist pin, circlips, head gasket, and base gasket. Requires your cylinder to be bored to fit the larger piston.

    Special order item. Allow 10 extra days for delivery.

    WARNING: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

    Big Bore 677cc Kit

    SV650 '99 - '06
    $449.95

    2mm oversize from stock. Requires cylinder boring only. 12.5:1 compression. Includes pistons, rings, pins, clips and head gaskets.

    WARNING: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

    Big Bore 700cc Kit

    SV650 '99 - '06
    $449.95

    3mm oversize. Requires cylinder boring only. 12:1 compression. Includes pistons, rings, pins, clips and head gaskets.