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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On Sale
Renthal 12-Tooth Front Sprocket for Suzuki 255--520-12GP
RENTHAL
MSRP: $37.95Now: $34.16Was: $37.95A quality front sprocket is fundamental to your Suzuki's drivetrain efficiency and acceleration response. The Renthal 12-tooth design delivers measurable weight savings and durability gains through...R25552012- SKU:
- R25552012
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- MATERIAL:
- STEEL
- MOUNTING POSITION:
- FRONT
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 12
- CHAIN SIZE:
- 520
MSRP: $37.95Now: $34.16Was: $37.95 -
On Sale
Renthal Front Sprocket 15T 520 Chain KTM 292--520-15GP
RENTHAL
MSRP: $39.95Now: $34.16Was: $39.95If you're running a KTM with a 520 chain and pushing hard on the track or trail, your front sprocket takes a beating. The Renthal 15T Front Sprocket cuts weight without sacrificing durability, which...12120046- SKU:
- 12120046
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- OFF-ROAD
- CHAIN SIZE:
- 520
- MATERIAL:
- 655M13 NICKEL CHROMIUM STEEL
- RIDING STYLE:
- STREET
- TYPE:
- FRONT
- MOUNTING POSITION:
- FRONT
- PRODUCT NAME:
- SPROCKET
- UNITS:
- EACH
- TOOTH COUNT:
- 15
MSRP: $39.95Now: $34.16Was: $39.95Qty in Cart: 0Quantity:Price:MSRP: $39.95Now: $34.16Was: $39.95Subtotal: -
On Sale
Renthal Rear Sprocket 52T Orange 224U-520-52GPOR
RENTHAL
MSRP: $104.95Now: $94.15Was: $104.95Unsprung weight is your enemy on the track and trail—every gram matters when you're demanding maximum acceleration and suspension response. The Renthal 52T rear sprocket cuts 66% of the mass compared...12112478- SKU:
- 12112478
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
- TYPE:
- DRIVE
- UNITS:
- EACH
- CHAIN SIZE:
- 520
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- OFF-ROAD
- COLOR/FINISH:
- ORANGE
- MATERIAL:
- 7075-T6 ALUMINUM
- MOUNTING POSITION:
- REAR
- TOOTH COUNT:
- 52
MSRP: $104.95Now: $94.15Was: $104.95 -
On Sale
Renthal 50T Rear Sprocket Orange 428 Chain Husqvarna TC85 2014-2024 KTM 85 SX 2004-2021 441U-428-50GPOR
RENTHAL
MSRP: $104.95Now: $94.15Was: $104.95Shaving unsprung weight off your bike directly translates to quicker acceleration and sharper handling—exactly what you need when every tenth of a second matters. The Renthal 50T rear sprocket pairs...12112486- SKU:
- 12112486
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
- UNITS:
- EACH
- COLOR/FINISH:
- ORANGE
- MATERIAL:
- 7075-T6 ALUMINUM
- TYPE:
- DRIVE
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- OFF-ROAD
- TOOTH COUNT:
- 50
MSRP: $104.95Now: $94.15Was: $104.95 -
On Sale
Renthal 46T Rear Sprocket Orange 520 Chain 441U-520-46GPOR
RENTHAL
MSRP: $97.95Now: $88.16Was: $97.95If you're running a 520 chain setup, your rear sprocket is directly responsible for power delivery, acceleration response, and overall drivetrain efficiency. The Renthal 46T in 7075-T6 aluminum...12112487- SKU:
- 12112487
- Availability:
- Ships Same Business Day
- Weight:
- 0.95 LBS
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 46
- COLOR/FINISH:
- ORANGE
- MATERIAL:
- 7075-T6 ALUMINUM
- RIDING STYLE:
- OFF-ROAD
- CHAIN SIZE:
- 520
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- STREET
- TYPE:
- DRIVE
- UNITS:
- EACH
MSRP: $97.95Now: $88.16Was: $97.95Qty in Cart: 0Quantity:Price:MSRP: $97.95Now: $88.16Was: $97.95Subtotal: -
On Sale
Renthal Rear Sprocket 48T Orange 520 Chain 7075-T6 Aluminum 441U-520-48GPOR
RENTHAL
MSRP: $97.95Now: $88.16Was: $97.95Losing performance to excessive sprocket weight and mud buildup? The Renthal 48T rear sprocket delivers a measurable advantage: 66% lighter than steel alternatives while maintaining the durability...12112488- SKU:
- 12112488
- Availability:
- Ships Same Business Day
- Weight:
- 0.95 LBS
- TYPE:
- DRIVE
- UNITS:
- EACH
- COLOR/FINISH:
- ORANGE
- MATERIAL:
- 7075-T6 ALUMINUM
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- OFF-ROAD
- TOOTH COUNT:
- 48
- CHAIN SIZE:
- 520
- RIDING STYLE:
- STREET
- MOUNTING POSITION:
- REAR
MSRP: $97.95Now: $88.16Was: $97.95Qty in Cart: 0Quantity:Price:MSRP: $97.95Now: $88.16Was: $97.95Subtotal: -
On Sale
Renthal Rear Sprocket 51T Blue 520 for Yamaha 150U-520-51GBBU
RENTHAL
MSRP: $104.95Now: $94.15Was: $104.95A lightweight rear sprocket is fundamental to unlocking better acceleration and throttle response on your Yamaha. The Renthal 51T trades unnecessary weight for CNC-machined precision, delivering...12110167- SKU:
- 12110167
- Availability:
- Ships Same Business Day
- Weight:
- 0.91 LBS
- RIDING STYLE:
- OFF-ROAD
- COLOR/FINISH:
- BLUE
- UNITS:
- EACH
- CHAIN SIZE:
- 520
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- TYPE:
- DRIVE
- MATERIAL:
- 7075-T6 ALUMINUM
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 51
MSRP: $104.95Now: $94.15Was: $104.95Qty in Cart: 0Quantity:Price:MSRP: $104.95Now: $94.15Was: $104.95Subtotal: -
On Sale
Renthal Front Sprocket 13T 520 Chain Kawasaki 445--520-13GP
RENTHAL
MSRP: $39.95Now: $34.16Was: $39.95A lighter front sprocket directly improves throttle response and acceleration by reducing rotational mass, while the hardened 655M13 steel construction ensures your drivetrain won't wear prematurely...12120709- SKU:
- 12120709
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- OFF-ROAD
- TOOTH COUNT:
- 13
- UNITS:
- EACH
- MATERIAL:
- 655M13 NICKEL CHROMIUM STEEL
- MOUNTING POSITION:
- FRONT
- TYPE:
- FRONT
- CHAIN SIZE:
- 520
- RIDING STYLE:
- STREET
MSRP: $39.95Now: $34.16Was: $39.95Qty in Cart: 0Quantity:Price:MSRP: $39.95Now: $34.16Was: $39.95Subtotal: -
On Sale
Renthal 13-Tooth Front Sprocket for Husqvarna TC250 2010 479--520-13GP
RENTHAL
MSRP: $37.95Now: $34.16Was: $37.95If you're running a Husqvarna TC250 and serious about lap times, sprocket choice directly impacts your power delivery and handling. This Renthal 13-tooth front sprocket delivers measurable weight...12120728- SKU:
- 12120728
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- CHAIN SIZE:
- 520
- TYPE:
- FRONT
- TOOTH COUNT:
- 13
- UNITS:
- EACH
- MATERIAL:
- 655M13 NICKEL CHROMIUM STEEL
- MOUNTING POSITION:
- FRONT
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- OFF-ROAD
MSRP: $37.95Now: $34.16Was: $37.95Qty in Cart: 0Quantity:Price:MSRP: $37.95Now: $34.16Was: $37.95Subtotal:
