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
-
SUPERSPROX Rear Sprocket - Black - Yamaha - 37-Tooth RAL-834-37-BLK
SUPERSPROX
$64.95Made 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...12111952- SKU:
- 12111952
- Availability:
- Ships Same Business Day
- Weight:
- 0.65 LBS
- CHAIN SIZE:
- 420
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 37
- UNITS:
- EACH
- MATERIAL:
- 7075-T6 ALUMINUM
- COLOR/FINISH:
- BLACK
- MODEL:
- ALUMINUM
- RIDING STYLE:
- OFF-ROAD
$64.95Qty in Cart: 0Quantity:Price:$64.95Subtotal: -
SUPERSPROX Rear Sprocket - Black - Yamaha - 40-Tooth RAL-853-40-BLK
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...12111953- SKU:
- 12111953
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
- MATERIAL:
- 7075-T6 ALUMINUM
- RIDING STYLE:
- OFF-ROAD
- CHAIN SIZE:
- 520
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- STREET
- TOOTH COUNT:
- 40
- UNITS:
- EACH
- MODEL:
- ALUMINUM
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
$69.95Qty in Cart: 0Quantity:Price:$69.95Subtotal: -
SUPERSPROX Rear Sprocket - Orange - KTM/Husqvarna - 50-Tooth RAL-990-50-ORG
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...12111956- SKU:
- 12111956
- Availability:
- Ships Same Business Day
- Weight:
- 1.20 LBS
- MATERIAL:
- 7075-T6 ALUMINUM
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 50
- MOUNTING POSITION:
- REAR
- CHAIN SIZE:
- 520
- COLOR/FINISH:
- ORANGE
- MODEL:
- ALUMINUM
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$69.95Qty in Cart: 0Quantity:Price:$69.95Subtotal: -
SUPERSPROX Rear Sprocket - Orange - KTM/Husqvarna - 51-Tooth RAL-990-51-ORG
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...12111957- SKU:
- 12111957
- Availability:
- Ships Same Business Day
- Weight:
- 1.20 LBS
- CHAIN SIZE:
- 520
- MATERIAL:
- 7075-T6 ALUMINUM
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- ORANGE
- MODEL:
- ALUMINUM
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 51
- UNITS:
- EACH
- RIDING STYLE:
- OFF-ROAD
$69.95Qty in Cart: 0Quantity:Price:$69.95Subtotal: -
SUPERSPROX Steel Rear Sprocket - 50-Tooth RFE-457-50-BLK
SUPERSPROX
$44.95Developed 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...12101899- SKU:
- 12101899
- Availability:
- Ships Same Business Day
- Weight:
- 1.55 LBS
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- REAR
- UNITS:
- EACH
- MOUNTING POSITION:
- REAR
- MATERIAL:
- STEEL
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 50
$44.95Qty in Cart: 0Quantity:Price:$44.95Subtotal: -
SUPERSPROX Steel Rear Sprocket - 49-Tooth RFE-460-49-BLK
SUPERSPROX
$54.95Developed 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...12101903- SKU:
- 12101903
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- MATERIAL:
- STEEL
- TOOTH COUNT:
- 49
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- REAR
- PRODUCT NAME:
- SPROCKET
- UNITS:
- EACH
- CHAIN SIZE:
- 520
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- STREET
$54.95Qty in Cart: 0Quantity:Price:$54.95Subtotal: -
SUPERSPROX Steel Rear Sprocket - 51-Tooth RFE-460-51-BLK
SUPERSPROX
$59.95Developed 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...12101905- SKU:
- 12101905
- Availability:
- Ships Same Business Day
- Weight:
- 1.15 LBS
- COLOR/FINISH:
- BLACK
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- REAR
- CHAIN SIZE:
- 520
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 51
- UNITS:
- EACH
- MOUNTING POSITION:
- REAR
$59.95Qty in Cart: 0Quantity:Price:$59.95Subtotal: -
SUPERSPROX Steel Rear Sprocket - 43-Tooth RFE-487-43-BLK
SUPERSPROX
$44.95Developed 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...12101913- SKU:
- 12101913
- Availability:
- Ships Same Business Day
- Weight:
- 1.45 LBS
- MOUNTING POSITION:
- REAR
- TOOTH COUNT:
- 43
- PRODUCT NAME:
- SPROCKET
- UNITS:
- EACH
- COLOR/FINISH:
- BLACK
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- REAR
$44.95Qty in Cart: 0Quantity:Price:$44.95Subtotal: -
SUPERSPROX Steel Rear Sprocket - 41-Tooth RFE-808-41-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...12101918- SKU:
- 12101918
- Availability:
- Ships Same Business Day
- Weight:
- 1.40 LBS
- MOUNTING POSITION:
- REAR
- CHAIN SIZE:
- 520
- RIDING STYLE:
- STREET
- TOOTH COUNT:
- 41
- UNITS:
- EACH
- COLOR/FINISH:
- BLACK
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- REAR
- PRODUCT NAME:
- SPROCKET
$49.95Qty in Cart: 0Quantity:Price:$49.95Subtotal: -
SUPERSPROX Steel Rear Sprocket - 48-Tooth RFE-808-48-BLK
SUPERSPROX
$59.95Developed 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...12101921- SKU:
- 12101921
- Availability:
- Ships Same Business Day
- Weight:
- 1.65 LBS
- MOUNTING POSITION:
- REAR
- CHAIN SIZE:
- 520
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- COLOR/FINISH:
- BLACK
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- TOOTH COUNT:
- 48
- TYPE:
- REAR
- PRODUCT NAME:
- SPROCKET
$59.95Qty in Cart: 0Quantity:Price:$59.95Subtotal: -
SUPERSPROX Steel Rear Sprocket - 50-Tooth RFE-990-50-BLK
SUPERSPROX
$59.95Developed 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...12101942- SKU:
- 12101942
- Availability:
- Ships Same Business Day
- Weight:
- 1.95 LBS
- CHAIN SIZE:
- 520
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- BLACK
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- REAR
- UNITS:
- EACH
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 50
- MOUNTING POSITION:
- REAR
$59.95Qty in Cart: 0Quantity:Price:$59.95Subtotal: -
SUPERSPROX Steel Rear Sprocket - 51-Tooth RFE-990-51-BLK
SUPERSPROX
$59.95Developed 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...12101943- SKU:
- 12101943
- Availability:
- Ships Same Business Day
- Weight:
- 2.00 LBS
- CHAIN SIZE:
- 520
- RIDING STYLE:
- STREET
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 51
- COLOR/FINISH:
- BLACK
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- REAR
- UNITS:
- EACH
$59.95Qty in Cart: 0Quantity:Price:$59.95Subtotal: -
SUPERSPROX Steel Rear Sprocket - 52-Tooth RFE-990-52-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...12101944- SKU:
- 12101944
- Availability:
- Ships Same Business Day
- Weight:
- 2.20 LBS
- CHAIN SIZE:
- 520
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- REAR
- UNITS:
- EACH
- MATERIAL:
- STEEL
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 52
$64.95Qty in Cart: 0Quantity:Price:$64.95Subtotal: -
SUPERSPROX Stealth Rear Sprocket - 42-Tooth - Gold - Honda RST-1350-42-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...12101951- SKU:
- 12101951
- Availability:
- Ships Same Business Day
- Weight:
- 1.70 LBS
- CHAIN SIZE:
- 520
- COLOR/FINISH:
- STEALTH
- MATERIAL:
- ALUMINUM
- COLOR/FINISH:
- GOLD
- MATERIAL:
- STEEL
- RIDING STYLE:
- ATV
- TOOTH COUNT:
- 42
- TYPE:
- REAR
- UNITS:
- EACH
- PRODUCT NAME:
- SPROCKET
- MOUNTING POSITION:
- REAR
$119.95Qty in Cart: 0Quantity:Price:$119.95Subtotal: -
SUPERSPROX Stealth Rear Sprocket - 49-Tooth - Red - Beta RST-1512-49-RED
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...12101953- SKU:
- 12101953
- Availability:
- Ships Same Business Day
- Weight:
- 1.85 LBS
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 49
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- REAR
- CHAIN SIZE:
- 520
- COLOR/FINISH:
- STEALTH
- MATERIAL:
- ALUMINUM
- MOUNTING POSITION:
- REAR
- COLOR/FINISH:
- RED
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$119.95Qty in Cart: 0Quantity:Price:$119.95Subtotal: -
SUPERSPROX Stealth Rear Sprocket - 48-Tooth - Blue - Yamaha RST-245-48-BLU
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...12101985- SKU:
- 12101985
- Availability:
- Ships Same Business Day
- Weight:
- 1.90 LBS
- COLOR/FINISH:
- BLUE
- MATERIAL:
- STEEL
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- OFF-ROAD
- TOOTH COUNT:
- 48
- TYPE:
- REAR
- CHAIN SIZE:
- 520
- COLOR/FINISH:
- STEALTH
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- SPROCKET
- UNITS:
- EACH
- MATERIAL:
- ALUMINUM
- MOUNTING POSITION:
- REAR
$119.95Qty in Cart: 0Quantity:Price:$119.95Subtotal: -
SUPERSPROX Stealth Rear Sprocket - 50-Tooth - Blue - Yamaha RST-245-50-BLU
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...12101987- SKU:
- 12101987
- Availability:
- Ships Same Business Day
- Weight:
- 1.90 LBS
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- REAR
- UNITS:
- EACH
- CHAIN SIZE:
- 520
- COLOR/FINISH:
- STEALTH
- MATERIAL:
- ALUMINUM
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- BLUE
- MATERIAL:
- STEEL
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 50
$119.95Qty in Cart: 0Quantity:Price:$119.95Subtotal: -
SUPERSPROX Stealth Rear Sprocket - 51-Tooth - Blue - Yamaha RST-245-51-BLU
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...12101988- SKU:
- 12101988
- Availability:
- Ships Same Business Day
- Weight:
- 1.95 LBS
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 51
- CHAIN SIZE:
- 520
- COLOR/FINISH:
- STEALTH
- MATERIAL:
- ALUMINUM
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- BLUE
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- TYPE:
- REAR
- UNITS:
- EACH
$119.95Qty in Cart: 0Quantity:Price:$119.95Subtotal: -
SUPERSPROX Stealth Rear Sprocket - 48-Tooth - Black - Yamaha RST-245-48-BLK
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...12101989- SKU:
- 12101989
- Availability:
- Ships Same Business Day
- Weight:
- 1.85 LBS
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- CHAIN SIZE:
- 520
- COLOR/FINISH:
- STEALTH
- MATERIAL:
- ALUMINUM
- MOUNTING POSITION:
- REAR
- COLOR/FINISH:
- BLACK
- MATERIAL:
- STEEL
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- OFF-ROAD
- TOOTH COUNT:
- 48
- TYPE:
- REAR
- PRODUCT NAME:
- SPROCKET
$119.95Qty in Cart: 0Quantity:Price:$119.95Subtotal: -
SUPERSPROX Stealth Rear Sprocket - 50-Tooth - Black - Yamaha RST-245-50-BLK
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...12101991- SKU:
- 12101991
- Availability:
- Ships Same Business Day
- Weight:
- 1.90 LBS
- CHAIN SIZE:
- 520
- MATERIAL:
- ALUMINUM
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- REAR
- UNITS:
- EACH
- COLOR/FINISH:
- STEALTH
- MATERIAL:
- STEEL
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 50
$119.95Qty in Cart: 0Quantity:Price:$119.95Subtotal:
