Dirt Bike Drivetrain
Dirt Bike Drivetrain Parts at JJ Motorsports
Enhance your dirt bike’s power transfer with premium drivetrain parts from JJ Motorsports. Find heavy-duty chains, front and rear sprockets, and clutch components designed to withstand intense riding demands. Combine these with other motocross gear and parts to maximize acceleration and ride efficiency on the track or trail.
Shop trusted brands like JT Chains for sealed chains and Renthal for ultralight sprockets. Explore related categories such as Dirt Bike Engine Parts for power upgrades or Dirt Bike Exhaust for complete tuning.
Browse our in-stock inventory below with same-day shipping and expert support. Questions? Contact us for fitment advice!
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
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SUPERSPROX Countershaft Sprocket - 13-Tooth CST-1443-13-1
SUPERSPROX
$29.95Made from SCM-435 carbon-free steel and impregnated to guarantee zero breaking risk and extended sprocket life, Ultra-hard surface layer (.5mm) reduces friction to prevent power loss caused by chain drag, Fully lightened with radial holes for off-road...12121331- SKU:
- 12121331
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- CHAIN SIZE:
- 520
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- COUNTERSHAFT
- UNITS:
- EACH
- MATERIAL:
- STEEL
- MOUNTING POSITION:
- FRONT
- TOOTH COUNT:
- 13
$29.95 -
SUPERSPROX Steel Rear Sprocket - 51-Tooth RFE-245-51-BLK
SUPERSPROX
$64.95Developed on the race track to give longer system life and high performance for street and off-road applications, Using CAD designed and CNC-Laser cutting to ensure an exact fit on the wheel, Made to Supersprox high quality standards and include our...12101894- SKU:
- 12101894
- Availability:
- Ships Same Business Day
- Weight:
- 2.00 LBS
- CHAIN SIZE:
- 520
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- BLACK
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- REAR
- UNITS:
- EACH
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 51
$64.95 -
SUPERSPROX Steel Rear Sprocket - 52-Tooth RFE-245-52-BLK
SUPERSPROX
$64.95Developed on the race track to give longer system life and high performance for street and off-road applications, Using CAD designed and CNC-Laser cutting to ensure an exact fit on the wheel, Made to Supersprox high quality standards and include our...12101895- SKU:
- 12101895
- Availability:
- Ships Same Business Day
- Weight:
- 2.00 LBS
- MATERIAL:
- STEEL
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- REAR
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 52
- UNITS:
- EACH
- CHAIN SIZE:
- 520
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- STREET
$64.95 -
SUPERSPROX Steel Rear Sprocket - 45-Tooth RFE-301-45-BLK
SUPERSPROX
$49.95Developed on the race track to give longer system life and high performance for street and off-road applications, Using CAD designed and CNC-Laser cutting to ensure an exact fit on the wheel, Made to Supersprox high quality standards and include our...12101896- SKU:
- 12101896
- Availability:
- Ships Same Business Day
- Weight:
- 1.55 LBS
- CHAIN SIZE:
- 520
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- UNITS:
- EACH
- COLOR/FINISH:
- BLACK
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- TOOTH COUNT:
- 45
- TYPE:
- REAR
$49.95 -
SUPERSPROX Stealth Rear Sprocket - 50-Tooth - Gold - Honda RST-210-50-GLD
SUPERSPROX
$119.95Supersprox-Stealth gives you longer system life without compromising weight, Steel teeth last 4 times longer than aluminum, Pound-for-pound, the strongest sprocket on the market, The aluminum core is 70% lighter than steel, Forging rivets into the...12101971- SKU:
- 12101971
- Availability:
- Ships Same Business Day
- Weight:
- 2.00 LBS
- COLOR/FINISH:
- STEALTH
- MATERIAL:
- STEEL
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 50
- COLOR/FINISH:
- GOLD
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- REAR
- UNITS:
- EACH
- CHAIN SIZE:
- 520
- MATERIAL:
- ALUMINUM
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- STREET
$119.95 -
SUPERSPROX Rear Sprocket - Blue - Yamaha - 51-Tooth RAL-245-51 BLU
SUPERSPROX
$69.95Made from 7075-T6 aluminum for high strength, Fully CNC machined for a perfect fit, Grooved teeth prevent dirt build up, helping to maximize sprocket and chain life, Finished with durable anodizing and great colors, The lightest and strongest aluminum...12111935- SKU:
- 12111935
- Availability:
- Ships Same Business Day
- Weight:
- 1.20 LBS
- CHAIN SIZE:
- 520
- COLOR/FINISH:
- BLUE
- MATERIAL:
- 7075-T6 ALUMINUM
- RIDING STYLE:
- STREET
- MODEL:
- ALUMINUM
- UNITS:
- EACH
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 51
- RIDING STYLE:
- OFF-ROAD
$69.95 -
SUPERSPROX Stealth Rear Sprocket - 52-Tooth - Gold - Yamaha RST-245-52-GLD
SUPERSPROX
$119.95Supersprox-Stealth gives you longer system life without compromising weight, Steel teeth last 4 times longer than aluminum, Pound-for-pound, the strongest sprocket on the market, The aluminum core is 70% lighter than steel, Forging rivets into the...12101984- SKU:
- 12101984
- Availability:
- Ships Same Business Day
- Weight:
- 2.00 LBS
- CHAIN SIZE:
- 520
- MATERIAL:
- ALUMINUM
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- STREET
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 52
- UNITS:
- EACH
- COLOR/FINISH:
- GOLD
- COLOR/FINISH:
- STEALTH
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- REAR
$119.95 -
UFO Chain Guide - Kawasaki KXF250/450 - Green KA04708-026
UFO
$24.95Replaces OEM, Long-wearing polyurethane construction12310847- SKU:
- 12310847
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- COLOR/FINISH:
- GREEN
- PRODUCT NAME:
- CHAIN GUIDE
- MATERIAL:
- POLYURETHANE
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
$24.95 -
UFO Chain Slider - Suzuki - Black SU03909-001
UFO
$19.95Protects swingarm from chain wear, Install with stock hardware12310851- SKU:
- 12310851
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- UNITS:
- EACH
- PRODUCT NAME:
- SWINGARM SLIDER
- COLOR/FINISH:
- BLACK
- MATERIAL:
- PLASTIC
- TYPE:
- SWINGARM
$19.95 -
UFO Chain Guide - KTM 65 SX - Black KT04075-001
UFO
$24.95Replaces OEM, Long-wearing polyurethane construction12310747- SKU:
- 12310747
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- COLOR/FINISH:
- BLACK
- UNITS:
- EACH
- RIDING STYLE:
- OFF-ROAD
- MATERIAL:
- POLYURETHANE
- PRODUCT NAME:
- CHAIN GUIDE
$24.95 -
UFO Chain Slider - KTM SX 65 - Black KT04076-001
UFO
$19.95Protects swingarm from chain wear, Install with stock hardware12310748- SKU:
- 12310748
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- MATERIAL:
- PLASTIC
- PRODUCT NAME:
- CHAIN SLIDER
- RIDING STYLE:
- OFF-ROAD
- COLOR/FINISH:
- BLACK
- TYPE:
- SWINGARM
- UNITS:
- EACH
$19.95 -
UFO Chain Slider - Kawasaki KX450F - Black KA04755001
UFO
$19.95Protects swingarm from chain wear, Install with stock hardware12310995- SKU:
- 12310995
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- MATERIAL:
- PLASTIC
- COLOR/FINISH:
- BLACK
- TYPE:
- SWINGARM
- UNITS:
- EACH
- PRODUCT NAME:
- CHAIN SLIDER
- RIDING STYLE:
- OFF-ROAD
$19.95 -
UFO Chain Roller - Kawasaki KX450F - Black KA04754001
UFO
$12.95Injection-molded roller is stronger than stock, Complete with double-sealed roller bearings and all hardware12310996- SKU:
- 12310996
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- RIDING STYLE:
- OFF-ROAD
- COLOR/FINISH:
- BLACK
- MATERIAL:
- POLYURETHANE
- PRODUCT NAME:
- CHAIN ROLLER
- UNITS:
- EACH
$12.95 -
UFO Chain Guide - Yamaha YZ65 - Black YA04872001
UFO
$24.95Replaces OEM, Long-wearing polyurethane construction12310998- SKU:
- 12310998
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- MATERIAL:
- POLYURETHANE
- RIDING STYLE:
- OFF-ROAD
- COLOR/FINISH:
- BLACK
- UNITS:
- EACH
- PRODUCT NAME:
- CHAIN GUIDE
$24.95 -
UFO Chain Slider - Honda CR125R/CR250R - Black HO03607001
UFO
$19.95Protects swingarm from chain wear, Install with stock hardware123607- SKU:
- 123607
- Availability:
- Ships Same Business Day
- Weight:
- 0.31 LBS
$19.95 -
UFO Chain Slider - KTM - Orange KT03096127
UFO
$19.95Protects swingarm from chain wear, Install with stock hardware12310303- SKU:
- 12310303
- Availability:
- Ships Same Business Day
- Weight:
- 0.55 LBS
- PRODUCT NAME:
- CHAIN SLIDER
- COLOR/FINISH:
- ORANGE
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- MATERIAL:
- PLASTIC
- TYPE:
- SWINGARM
$19.95 -
UFO Chain Slider - Honda CR125R/CR250R - Black HO02632001
UFO
$19.95Protects swingarm from chain wear, Install with stock hardware12310306- SKU:
- 12310306
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- COLOR/FINISH:
- BLACK
- TYPE:
- SWINGARM
- UNITS:
- EACH
- PRODUCT NAME:
- CHAIN SLIDER
- RIDING STYLE:
- OFF-ROAD
- MATERIAL:
- PLASTIC
$19.95 -
UFO Chain Guide - Honda CR125R/250R/X - Black HO03691-001
UFO
$24.95Replaces OEM, Long-wearing polyurethane construction12310053- SKU:
- 12310053
- Availability:
- Ships Same Business Day
- Weight:
- 0.21 LBS
- PRODUCT NAME:
- CHAIN GUIDE
- RIDING STYLE:
- OFF-ROAD
- COLOR/FINISH:
- BLACK
- UNITS:
- EACH
- MATERIAL:
- POLYURETHANE
$24.95 -
UFO Chain Guide - Honda CR125R/250R | CRF450R - Black HO04623-001
UFO
$24.95Replaces OEM, Long-wearing polyurethane construction12310146- SKU:
- 12310146
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- MATERIAL:
- POLYURETHANE
- PRODUCT NAME:
- CHAIN GUIDE
- COLOR/FINISH:
- BLACK
- UNITS:
- EACH
- RIDING STYLE:
- OFF-ROAD
$24.95 -
UFO Chain Guide - Honda CR85R - Neutral HO04626-280
UFO
$24.95Replaces OEM, Long-wearing polyurethane construction12310147- SKU:
- 12310147
- Availability:
- Ships Same Business Day
- Weight:
- 0.23 LBS
- UNITS:
- EACH
- COLOR/FINISH:
- NEUTRAL
- PRODUCT NAME:
- CHAIN GUIDE
- MATERIAL:
- POLYURETHANE
- RIDING STYLE:
- OFF-ROAD
$24.95
