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
-
On Sale
SUPERSPROX Steel Rear Sprocket - 52-Tooth RFE-808-52-BLK
SUPERSPROX
MSRP: $69.95Now: $59.46Was: $69.95A worn or mismatched rear sprocket directly impacts your bike's acceleration, top-end speed, and drivetrain efficiency. The SUPERSPROX 52-tooth steel sprocket is engineered for both street and off-road riders who demand long-term reliability without...12101924- SKU:
- 12101924
- Availability:
- Ships Same Business Day
- Weight:
- 2.45 LBS
- COLOR/FINISH:
- BLACK
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- REAR
- UNITS:
- EACH
- CHAIN SIZE:
- 520
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 52
MSRP: $69.95Now: $59.46Was: $69.95Qty in Cart: 0Quantity:Price:MSRP: $69.95Now: $59.46Was: $69.95Subtotal: -
On Sale
SUPERSPROX Steel Rear Sprocket - 41-Tooth RFE-853-41-BLK
SUPERSPROX
MSRP: $44.95Now: $38.21Was: $44.95A rear sprocket is one of the highest-wear components on any bike—constant engagement with your chain means durability directly impacts performance and longevity. The SUPERSPROX 41-Tooth Steel Rear Sprocket delivers race-proven durability with a weight...12101933- SKU:
- 12101933
- Availability:
- Ships Same Business Day
- Weight:
- 1.25 LBS
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- ATV
- COLOR/FINISH:
- BLACK
- MATERIAL:
- STEEL
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- OFF-ROAD
- TOOTH COUNT:
- 41
- TYPE:
- REAR
- UNITS:
- EACH
MSRP: $44.95Now: $38.21Was: $44.95 -
On Sale
SUPERSPROX Steel Rear Sprocket - 38-Tooth RFE-857-38-BLK
SUPERSPROX
MSRP: $54.95Now: $46.71Was: $54.95A worn or mismatched rear sprocket directly impacts your power delivery, acceleration response, and drivetrain longevity. The SUPERSPROX Steel Rear Sprocket delivers race-proven durability without sacrificing weight, keeping your system efficient whether...12101935- SKU:
- 12101935
- Availability:
- Ships Same Business Day
- Weight:
- 1.40 LBS
- MOUNTING POSITION:
- REAR
- TOOTH COUNT:
- 38
- PRODUCT NAME:
- SPROCKET
- UNITS:
- EACH
- COLOR/FINISH:
- BLACK
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- REAR
MSRP: $54.95Now: $46.71Was: $54.95 -
On Sale
SUPERSPROX Steel Rear Sprocket - 42-Tooth RFE-899-42-BLK
SUPERSPROX
MSRP: $54.95Now: $46.71Was: $54.95A worn or undersized rear sprocket limits acceleration and top-end performance, forcing your engine to work harder while reducing chain life. The SUPERSPROX 42-tooth steel sprocket delivers race-proven durability with a lighter overall weight, giving you...12101936- SKU:
- 12101936
- Availability:
- Ships Same Business Day
- Weight:
- 1.70 LBS
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- TOOTH COUNT:
- 42
- TYPE:
- REAR
- MATERIAL:
- STEEL
- PRODUCT NAME:
- SPROCKET
- UNITS:
- EACH
- MOUNTING POSITION:
- REAR
MSRP: $54.95Now: $46.71Was: $54.95Qty in Cart: 0Quantity:Price:MSRP: $54.95Now: $46.71Was: $54.95Subtotal: -
On Sale
SUPERSPROX Stealth Rear Sprocket - 53-Tooth - Gold - Honda RST-210-53-GLD
SUPERSPROX
MSRP: $109.95Now: $93.46Was: $109.95Rear sprocket durability directly impacts your bike's acceleration, top-end performance, and maintenance intervals. The SUPERSPROX Stealth combines a lightweight aluminum core with hardened steel teeth—delivering four times the wear life of aluminum-only...12101973- SKU:
- 12101973
- Availability:
- Ships Same Business Day
- Weight:
- 2.00 LBS
- COLOR/FINISH:
- STEALTH
- PRODUCT NAME:
- SPROCKET
- COLOR/FINISH:
- GOLD
- MATERIAL:
- STEEL
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- OFF-ROAD
- TOOTH COUNT:
- 53
- TYPE:
- REAR
- MATERIAL:
- ALUMINUM
- MOUNTING POSITION:
- REAR
- CHAIN SIZE:
- 520
- RIDING STYLE:
- STREET
- UNITS:
- EACH
MSRP: $109.95Now: $93.46Was: $109.95 -
On Sale
SUPERSPROX Stealth Rear Sprocket - 50-Tooth - Red - Honda RST-210-50-RED
SUPERSPROX
MSRP: $109.95Now: $93.46Was: $109.95If you're running a high-displacement Honda and want sprocket durability without the weight penalty, the SUPERSPROX Stealth Rear Sprocket delivers steel-tooth longevity in a lightweight aluminum core package. You'll get four times the tooth life compared...12101976- SKU:
- 12101976
- Availability:
- Ships Same Business Day
- Weight:
- 1.85 LBS
- COLOR/FINISH:
- RED
- MATERIAL:
- STEEL
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- REAR
- UNITS:
- EACH
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 50
- CHAIN SIZE:
- 520
- COLOR/FINISH:
- STEALTH
- MATERIAL:
- ALUMINUM
- RIDING STYLE:
- STREET
- MOUNTING POSITION:
- REAR
MSRP: $109.95Now: $93.46Was: $109.95Qty in Cart: 0Quantity:Price:MSRP: $109.95Now: $93.46Was: $109.95Subtotal: -
On Sale
SUPERSPROX Stealth Rear Sprocket - 51-Tooth - Red - Honda RST-210-51-RED
SUPERSPROX
MSRP: $109.95Now: $93.46Was: $109.95If you're running a high-displacement Honda and want sprocket longevity without the weight penalty, the SUPERSPROX Stealth delivers. Steel teeth that last 4x longer than aluminum mean fewer mid-season replacements and more time on the track. The hybrid...12101977- SKU:
- 12101977
- Availability:
- Ships Same Business Day
- Weight:
- 2.00 LBS
- CHAIN SIZE:
- 520
- MATERIAL:
- ALUMINUM
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 51
- UNITS:
- EACH
- COLOR/FINISH:
- RED
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- STEALTH
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- REAR
MSRP: $109.95Now: $93.46Was: $109.95Qty in Cart: 0Quantity:Price:MSRP: $109.95Now: $93.46Was: $109.95Subtotal: -
On Sale
SUPERSPROX Stealth Rear Sprocket - 47-Tooth - Gold - Yamaha RST-245-47-GLD
SUPERSPROX
MSRP: $119.95Now: $101.96Was: $119.95If you're running a high-displacement Yamaha and want sprocket longevity without the weight penalty, the SUPERSPROX Stealth delivers steel-tooth durability in an aluminum-core package. You get four times the wear life of aluminum teeth while keeping your...12101979- SKU:
- 12101979
- Availability:
- Ships Same Business Day
- Weight:
- 1.75 LBS
- CHAIN SIZE:
- 520
- MATERIAL:
- ALUMINUM
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- STREET
- TOOTH COUNT:
- 47
- UNITS:
- EACH
- COLOR/FINISH:
- GOLD
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- REAR
- COLOR/FINISH:
- STEALTH
- MATERIAL:
- STEEL
- PRODUCT NAME:
- SPROCKET
MSRP: $119.95Now: $101.96Was: $119.95Qty in Cart: 0Quantity:Price:MSRP: $119.95Now: $101.96Was: $119.95Subtotal: -
On Sale
SUPERSPROX Stealth Rear Sprocket - 51-Tooth - Gold - Yamaha RST-245-51-GLD
SUPERSPROX
MSRP: $119.95Now: $101.96Was: $119.95If you're running a high-displacement Yamaha and tired of replacing worn sprockets every season, the SUPERSPROX Stealth 51-tooth rear sprocket delivers the durability you need without the weight penalty. Steel teeth outlast aluminum alternatives by 4:1,...12101983- SKU:
- 12101983
- Availability:
- Ships Same Business Day
- Weight:
- 2.00 LBS
- COLOR/FINISH:
- STEALTH
- MATERIAL:
- STEEL
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 51
- 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
MSRP: $119.95Now: $101.96Was: $119.95Qty in Cart: 0Quantity:Price:MSRP: $119.95Now: $101.96Was: $119.95Subtotal: -
On Sale
SUPERSPROX Stealth Rear Sprocket - 49-Tooth - Blue - Yamaha RST-245-49-BLU
SUPERSPROX
MSRP: $109.95Now: $93.46Was: $109.95If you're pushing your Yamaha to its limits, sprocket wear is silently robbing you of power transfer and reliability. The SUPERSPROX Stealth rear sprocket combines steel teeth that outlast aluminum by 4x with a lightweight aluminum core, giving you the...12101986- SKU:
- 12101986
- Availability:
- Ships Same Business Day
- Weight:
- 1.85 LBS
- MOUNTING POSITION:
- REAR
- CHAIN SIZE:
- 520
- COLOR/FINISH:
- STEALTH
- MATERIAL:
- ALUMINUM
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- BLUE
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 49
- MATERIAL:
- STEEL
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- REAR
- UNITS:
- EACH
MSRP: $109.95Now: $93.46Was: $109.95 -
On Sale
SUPERSPROX Stealth Rear Sprocket - 51-Tooth - Black - Yamaha RST-245-51-BLK
SUPERSPROX
MSRP: $119.95Now: $101.96Was: $119.95If you're running high-mileage track sessions or pushing your Yamaha RST-245 hard on the street, sprocket wear becomes a real maintenance headache. The SUPERSPROX Stealth 51-tooth rear sprocket solves this problem by combining steel teeth that last 4x...12101992- SKU:
- 12101992
- Availability:
- Ships Same Business Day
- Weight:
- 1.95 LBS
- COLOR/FINISH:
- STEALTH
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 51
- COLOR/FINISH:
- BLACK
- MATERIAL:
- STEEL
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- REAR
- MOUNTING POSITION:
- REAR
- UNITS:
- EACH
- CHAIN SIZE:
- 520
- MATERIAL:
- ALUMINUM
- RIDING STYLE:
- STREET
MSRP: $119.95Now: $101.96Was: $119.95Qty in Cart: 0Quantity:Price:MSRP: $119.95Now: $101.96Was: $119.95Subtotal: -
On Sale
SUPERSPROX Stealth Rear Sprocket - 42-Tooth - Gold - KTM RST-899-42-GLD
SUPERSPROX
MSRP: $119.95Now: $101.96Was: $119.95Rear sprocket wear is one of the fastest ways to lose efficiency and responsiveness in your drivetrain, especially under aggressive riding. The SUPERSPROX Stealth delivers steel-toothed durability with an aluminum core that cuts weight without...12102048- SKU:
- 12102048
- Availability:
- Ships Same Business Day
- Weight:
- 1.90 LBS
- COLOR/FINISH:
- GOLD
- UNITS:
- EACH
- MATERIAL:
- STEEL
- TOOTH COUNT:
- 42
- TYPE:
- REAR
- CHAIN SIZE:
- 520
- COLOR/FINISH:
- STEALTH
- MATERIAL:
- ALUMINUM
- RIDING STYLE:
- STREET
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
MSRP: $119.95Now: $101.96Was: $119.95Qty in Cart: 0Quantity:Price:MSRP: $119.95Now: $101.96Was: $119.95Subtotal: -
On Sale
SUPERSPROX Stealth Rear Sprocket - 45-Tooth - Gold - KTM RST-899-45-GLD
SUPERSPROX
MSRP: $119.95Now: $101.96Was: $119.95If you're tired of replacing sprockets every season, the SUPERSPROX Stealth Rear Sprocket solves the durability problem without adding unnecessary weight to your KTM. Steel teeth deliver 4x longer service life than aluminum alternatives, while the...12102050- SKU:
- 12102050
- Availability:
- Ships Same Business Day
- Weight:
- 2.10 LBS
- MATERIAL:
- STEEL
- TYPE:
- REAR
- COLOR/FINISH:
- GOLD
- UNITS:
- EACH
- CHAIN SIZE:
- 520
- COLOR/FINISH:
- STEALTH
- MATERIAL:
- ALUMINUM
- RIDING STYLE:
- STREET
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 45
MSRP: $119.95Now: $101.96Was: $119.95Qty in Cart: 0Quantity:Price:MSRP: $119.95Now: $101.96Was: $119.95Subtotal: -
On Sale
SUPERSPROX Stealth Rear Sprocket - 40-Tooth - Gold - Husaberg RST-990-40-GLD
SUPERSPROX
MSRP: $109.95Now: $93.46Was: $109.95If you're running a high-displacement bike and tired of replacing sprockets every season, the SUPERSPROX Stealth delivers the durability of steel teeth with the weight savings of an aluminum core. This hybrid design gives you four times the longevity of...12102052- SKU:
- 12102052
- Availability:
- Ships Same Business Day
- Weight:
- 1.60 LBS
- MATERIAL:
- STEEL
- PRODUCT NAME:
- SPROCKET
- UNITS:
- EACH
- COLOR/FINISH:
- STEALTH
- RIDING STYLE:
- OFF-ROAD
- TOOTH COUNT:
- 40
- TYPE:
- REAR
- COLOR/FINISH:
- GOLD
- CHAIN SIZE:
- 520
- MATERIAL:
- ALUMINUM
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- STREET
MSRP: $109.95Now: $93.46Was: $109.95 -
On Sale
SUPERSPROX Stealth Rear Sprocket - 48-Tooth - Gold - Husaberg RST-990-48-GLD
SUPERSPROX
MSRP: $109.95Now: $93.46Was: $109.95If you're pushing your Husaberg RST to its limits, sprocket wear shouldn't be your limiting factor. The SUPERSPROX Stealth combines a hardened steel tooth design that outlasts aluminum by 4x with an aluminum core that sheds unnecessary weight—giving you...12102056- SKU:
- 12102056
- Availability:
- Ships Same Business Day
- Weight:
- 1.90 LBS
- CHAIN SIZE:
- 520
- COLOR/FINISH:
- STEALTH
- MATERIAL:
- ALUMINUM
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- STREET
- MATERIAL:
- STEEL
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 48
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- REAR
- COLOR/FINISH:
- GOLD
- UNITS:
- EACH
MSRP: $109.95Now: $93.46Was: $109.95Qty in Cart: 0Quantity:Price:MSRP: $109.95Now: $93.46Was: $109.95Subtotal: -
On Sale
SUPERSPROX Stealth Rear Sprocket - 51-Tooth - Blue - Husaberg RST-990-51-BLU
SUPERSPROX
MSRP: $109.95Now: $93.46Was: $109.95If you're running a high-displacement bike and want sprocket longevity without sacrificing rotational mass, the SUPERSPROX Stealth delivers steel-tooth durability in a lightweight package. The hybrid steel-tooth, aluminum-core design gives you four times...12102070- SKU:
- 12102070
- Availability:
- Ships Same Business Day
- Weight:
- 2.05 LBS
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- COLOR/FINISH:
- BLUE
- COLOR/FINISH:
- STEALTH
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- TYPE:
- REAR
- UNITS:
- EACH
- RIDING STYLE:
- STREET
- CHAIN SIZE:
- 520
- MATERIAL:
- ALUMINUM
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 51
MSRP: $109.95Now: $93.46Was: $109.95Qty in Cart: 0Quantity:Price:MSRP: $109.95Now: $93.46Was: $109.95Subtotal: -
On Sale
SUPERSPROX Rear Sprocket - Black - Honda - 50-Tooth RAL-1204-50-BLK
SUPERSPROX
MSRP: $54.95Now: $46.71Was: $54.95A rear sprocket is one of the most critical drivetrain components affecting acceleration, top speed, and chain longevity. SUPERSPROX's 50-tooth aluminum sprocket delivers the strength of premium materials with a weight savings that directly translates to...12111920- SKU:
- 12111920
- Availability:
- Ships Same Business Day
- Weight:
- 0.95 LBS
- CHAIN SIZE:
- 428
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 50
- MODEL:
- ALUMINUM
- UNITS:
- EACH
- COLOR/FINISH:
- BLACK
- MATERIAL:
- 7075-T6 ALUMINUM
- RIDING STYLE:
- OFF-ROAD
MSRP: $54.95Now: $46.71Was: $54.95 -
On Sale
SUPERSPROX Rear Sprocket - Black - Honda - 50-Tooth RAL20950BLK
SUPERSPROX
MSRP: $64.95Now: $55.21Was: $64.95A lightweight rear sprocket directly impacts acceleration, fuel efficiency, and overall drivetrain responsiveness—critical factors whether you're racing or pushing your Honda to its limits. SUPERSPROX's 7075-T6 aluminum construction delivers the strength...12111922- SKU:
- 12111922
- Availability:
- Ships Same Business Day
- Weight:
- 0.90 LBS
- COLOR/FINISH:
- BLACK
- MODEL:
- ALUMINUM
- RIDING STYLE:
- OFF-ROAD
- CHAIN SIZE:
- 420
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 50
- UNITS:
- EACH
- MATERIAL:
- 7075-T6 ALUMINUM
- MOUNTING POSITION:
- REAR
MSRP: $64.95Now: $55.21Was: $64.95 -
On Sale
SUPERSPROX Rear Sprocket - Red - Honda - 50-Tooth RAL21050RED
SUPERSPROX
MSRP: $69.95Now: $59.46Was: $69.95A quality rear sprocket directly impacts your acceleration, top-end speed, and chain longevity. The SUPERSPROX 50-tooth red sprocket delivers the strength-to-weight ratio serious riders demand, combining premium 7075-T6 aluminum with precision CNC...12111925- SKU:
- 12111925
- Availability:
- Ships Same Business Day
- Weight:
- 1.10 LBS
- MODEL:
- ALUMINUM
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 50
- MATERIAL:
- 7075-T6 ALUMINUM
- RIDING STYLE:
- OFF-ROAD
- CHAIN SIZE:
- 520
- COLOR/FINISH:
- RED
- UNITS:
- EACH
MSRP: $69.95Now: $59.46Was: $69.95Qty in Cart: 0Quantity:Price:MSRP: $69.95Now: $59.46Was: $69.95Subtotal: -
On Sale
SUPERSPROX Rear Sprocket - Red - Honda - 51-Tooth RAL21051RED
SUPERSPROX
MSRP: $69.95Now: $59.46Was: $69.95A lightweight rear sprocket is one of the most effective upgrades for improving acceleration and reducing unsprung mass on your Honda. The SUPERSPROX 51-tooth sprocket delivers the strength of billet steel in an aluminum design that's significantly...12111926- SKU:
- 12111926
- Availability:
- Ships Same Business Day
- Weight:
- 1.25 LBS
- MATERIAL:
- 7075-T6 ALUMINUM
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 51
- MOUNTING POSITION:
- REAR
- CHAIN SIZE:
- 520
- COLOR/FINISH:
- RED
- MODEL:
- ALUMINUM
- UNITS:
- EACH
MSRP: $69.95Now: $59.46Was: $69.95Qty in Cart: 0Quantity:Price:MSRP: $69.95Now: $59.46Was: $69.95Subtotal:
