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
-
JT SPROCKETS Sprocket - Rear - Honda - 48-Tooth JTR1355.48
JT SPROCKETS
$26.73A worn or incorrectly sized rear sprocket robs your Honda of acceleration response and top-end performance. The JT Sprockets 48-tooth rear sprocket delivers the precision engineering and durability you need for consistent power delivery across the rev...JTR135548- SKU:
- JTR135548
- Availability:
- Ships Same Business Day
- Weight:
- 1.70 LBS
- CHAIN SIZE:
- 428
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- MODEL:
- HONDA
- MOUNTING POSITION:
- REAR
- MATERIAL:
- STEEL
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 48
$26.73 -
JT SPROCKETS Sprocket - Rear - Kawasaki - 41-Tooth JTR1414.41
JT SPROCKETS
$32.48A properly sized rear sprocket is critical for achieving optimal power delivery and acceleration on your Kawasaki. This 41-tooth sprocket delivers the ideal balance between top-end speed and low-end responsiveness, ensuring your chain drive system...JTR141441- SKU:
- JTR141441
- Availability:
- Ships Same Business Day
- Weight:
- 2.10 LBS
- MATERIAL:
- STEEL
- MODEL:
- KAWASAKI
- TOOTH COUNT:
- 41
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- CHAIN SIZE:
- 520
- RIDING STYLE:
- ATV
- UNITS:
- EACH
$32.48 -
JT SPROCKETS Sprocket - Rear - Kawasaki - 43-Tooth JTR1414.43
JT SPROCKETS
$32.48A worn or undersized rear sprocket directly impacts your acceleration, top-end speed, and overall drivetrain efficiency. The JT SPROCKETS 43-tooth rear sprocket delivers the precise gearing you need to maximize performance while maintaining durability...JTR141443- SKU:
- JTR141443
- Availability:
- Ships Same Business Day
- Weight:
- 2.00 LBS
- MATERIAL:
- STEEL
- TOOTH COUNT:
- 43
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- CHAIN SIZE:
- 520
- MODEL:
- KAWASAKI
- MOUNTING POSITION:
- REAR
$32.48 -
JT SPROCKETS Sprocket - Rear - Kawasaki/Suzuki - 46-Tooth JTR1465.46
JT SPROCKETS
$18.90A worn or mismatched rear sprocket directly impacts your acceleration, top speed, and overall drivetrain efficiency. The JT Sprockets 46-tooth rear sprocket is engineered to restore optimal gearing performance while reducing rotating mass—critical for...JTR146546- SKU:
- JTR146546
- Availability:
- Ships Same Business Day
- Weight:
- 1.70 LBS
- MATERIAL:
- STEEL
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 46
- UNITS:
- EACH
- RIDING STYLE:
- OFF-ROAD
- CHAIN SIZE:
- 420
- MOUNTING POSITION:
- REAR
$18.90 -
JT SPROCKETS Counter Shaft Sprocket - 14-Tooth JTF284.14SC
JT SPROCKETS
$16.80A lightweight front sprocket is critical to your bike's acceleration response and overall drivetrain efficiency. The JT Sprockets 14-tooth counter shaft sprocket delivers the strength-to-weight ratio you need for consistent, predictable performance...12120516- SKU:
- 12120516
- Availability:
- Ships Same Business Day
- Weight:
- 0.31 LBS
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- MATERIAL:
- STEEL
- MOUNTING POSITION:
- FRONT
- PRODUCT NAME:
- SPROCKET
- MODEL:
- HONDA
- RIDING STYLE:
- OFF-ROAD
- TOOTH COUNT:
- 14
- CHAIN SIZE:
- 520
- TYPE:
- COUNTERSHAFT
$16.80 -
JT SPROCKETS Sprocket - Rear - Yamaha - 49-Tooth JTR1843.49
JT SPROCKETS
$25.28A worn or undersized rear sprocket robs your Yamaha of acceleration and top-end performance. The JT 49-tooth rear sprocket delivers precise gear ratios and reliable power transfer through computer-optimized tooth geometry and heat-treated Japanese C45...12120113- SKU:
- 12120113
- Availability:
- Ships Same Business Day
- Weight:
- 1.37 LBS
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- CHAIN SIZE:
- 428
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 49
- MODEL:
- YAMAHA
- MOUNTING POSITION:
- REAR
$25.28 -
JT SPROCKETS Sprocket - Rear - Kawasaki/Suzuki - 22-Tooth JTR1795.22
JT SPROCKETS
$18.08A worn or incorrect sprocket directly impacts your bike's acceleration, top-end speed, and overall drivetrain efficiency. The JT Sprockets rear sprocket delivers precision engineering with a lightweight design that reduces unsprung mass while maintaining...JTR179522- SKU:
- JTR179522
- Availability:
- Ships Same Business Day
- Weight:
- 0.70 LBS
- PRODUCT NAME:
- SPROCKET
- MATERIAL:
- STEEL
- MOUNTING POSITION:
- REAR
- UNITS:
- EACH
- CHAIN SIZE:
- 520
- RIDING STYLE:
- ATV
- TOOTH COUNT:
- 22
$18.08 -
JT SPROCKETS Sprocket - Rear - Suzuki - 40-Tooth JTR1825.40
JT SPROCKETS
$28.90A worn or mismatched rear sprocket directly impacts your acceleration, top speed, and overall drivetrain efficiency. The JT Sprockets 40-Tooth rear sprocket delivers the precision engineering and lightweight construction necessary for consistent power...JTR182540- SKU:
- JTR182540
- Availability:
- Ships Same Business Day
- Weight:
- 2.20 LBS
- CHAIN SIZE:
- 520
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- STREET
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- MATERIAL:
- STEEL
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- MODEL:
- SUZUKI
- TOOTH COUNT:
- 40
$28.90Qty in Cart: 0Quantity:Price:$28.90Subtotal: -
JT SPROCKETS Sprocket - Rear - Yamaha - 49-Tooth JTR833.49
JT SPROCKETS
$25.28A properly sized rear sprocket is critical for optimizing your Yamaha's power delivery and acceleration characteristics. The JT Sprockets 49-tooth rear sprocket combines precision engineering with high-grade materials to deliver reliable performance...12120120- SKU:
- 12120120
- Availability:
- Ships Same Business Day
- Weight:
- 2.28 LBS
- MOUNTING POSITION:
- REAR
- CHAIN SIZE:
- 428
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 49
- UNITS:
- EACH
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
$25.28 -
JT SPROCKETS Sprocket - Rear - Kawasaki - 40-Tooth JTR1826.40
JT SPROCKETS
$28.90A worn or incorrect sprocket directly impacts your acceleration, top-end speed, and chain longevity. The JT Sprockets 40-tooth rear sprocket for Kawasaki delivers the precision engineering your bike demands, with aviation-grade materials and CNC...JTR182640- SKU:
- JTR182640
- Availability:
- Ships Same Business Day
- Weight:
- 2.00 LBS
- CHAIN SIZE:
- 520
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- STREET
- MATERIAL:
- STEEL
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- TOOTH COUNT:
- 40
$28.90 -
JT SPROCKETS Sprocket - Rear - Kawasaki - 41-Tooth JTR1826.41
JT SPROCKETS
$28.90Your Kawasaki's acceleration and top-end performance depend on precise power delivery from the rear sprocket—worn or suboptimal gearing forces your engine to work harder and sacrifices efficiency. The JT Sprockets 41-tooth rear sprocket delivers the...JTR182641- SKU:
- JTR182641
- Availability:
- Ships Same Business Day
- Weight:
- 2.20 LBS
- TOOTH COUNT:
- 41
- MATERIAL:
- STEEL
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- CHAIN SIZE:
- 520
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- STREET
$28.90 -
JT SPROCKETS Sprocket - Rear - Kawasaki - 42-Tooth JTR1826.42
JT SPROCKETS
$28.90A worn or mismatched rear sprocket directly impacts your acceleration, top-end speed, and overall drivetrain efficiency. This JT Sprockets 42-tooth rear sprocket is precision-engineered to deliver reliable power transfer with minimal wear on your chain...JTR182642- SKU:
- JTR182642
- Availability:
- Ships Same Business Day
- Weight:
- 2.30 LBS
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- MATERIAL:
- STEEL
- RIDING STYLE:
- ATV
- TOOTH COUNT:
- 42
- CHAIN SIZE:
- 520
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$28.90 -
JT SPROCKETS Sprocket - Rear - Kawasaki - 44-Tooth JTR1826.44
JT SPROCKETS
$31.28Rear sprocket wear directly impacts your acceleration, top-end performance, and chain longevity—making this 44-tooth JT Sprockets unit a critical upgrade for Kawasaki riders who demand reliability on the track or trail. Manufactured from aviation-grade...JTR182644- SKU:
- JTR182644
- Availability:
- Ships Same Business Day
- Weight:
- 2.70 LBS
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- CHAIN SIZE:
- 520
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- STREET
- MATERIAL:
- STEEL
- TOOTH COUNT:
- 44
$31.28 -
JT SPROCKETS Sprocket - Rear - Yamaha - 47-Tooth JTR1842.47
JT SPROCKETS
$23.48A worn or undersized rear sprocket robs your Yamaha of acceleration and top-end performance. JT's 47-tooth sprocket delivers the precise gear ratio you need for aggressive acceleration without compromising reliability. Built from premium C45 high-carbon...JTR184247- SKU:
- JTR184247
- Availability:
- Ships Same Business Day
- Weight:
- 1.60 LBS
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 47
- MATERIAL:
- STEEL
- MODEL:
- YAMAHA
- RIDING STYLE:
- OFF-ROAD
- MOUNTING POSITION:
- REAR
- UNITS:
- EACH
- CHAIN SIZE:
- 428
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
$23.48 -
JT SPROCKETS Sprocket - Rear - Yamaha - 50-Tooth JTR1842.50
JT SPROCKETS
$26.53A worn or compromised rear sprocket directly impacts power delivery, acceleration, and overall drivetrain efficiency. The JT Sprockets 50-tooth rear sprocket is engineered for motorcycles demanding reliable, consistent performance across varied riding...JTR184250- SKU:
- JTR184250
- Availability:
- Ships Same Business Day
- Weight:
- 2.20 LBS
- MODEL:
- YAMAHA
- MOUNTING POSITION:
- REAR
- CHAIN SIZE:
- 428
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 50
- UNITS:
- EACH
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
$26.53 -
JT SPROCKETS Sprocket - Rear - Yamaha - 54-Tooth JTR1842.54
JT SPROCKETS
$30.33A worn or incorrect sprocket directly impacts your bike's acceleration, top-end speed, and overall driveability. The JT Sprockets 54-tooth rear sprocket delivers the precision engineering and material quality needed for consistent performance, whether...JTR184254- SKU:
- JTR184254
- Availability:
- Ships Same Business Day
- Weight:
- 2.30 LBS
- CHAIN SIZE:
- 428
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- UNITS:
- EACH
- MOUNTING POSITION:
- REAR
- TOOTH COUNT:
- 54
- MATERIAL:
- STEEL
- MODEL:
- YAMAHA
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- SPROCKET
$30.33 -
On Sale
JT SPROCKETS Sprocket - Rear - Yamaha - 42-Tooth JTR1912.42
JT SPROCKETS
MSRP: $28.95Now: $19.00Was: $28.95A worn or mismatched rear sprocket directly impacts your Yamaha's acceleration, top-end performance, and drivetrain efficiency. The JT Sprockets 42-tooth rear sprocket delivers precise chain engagement and reliable power delivery lap after lap, whether...JTR191242- SKU:
- JTR191242
- Availability:
- Ships Same Business Day
- Weight:
- 2.10 LBS
- RIDING STYLE:
- OFF-ROAD
- TOOTH COUNT:
- 42
- MATERIAL:
- STEEL
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- MODEL:
- YAMAHA
- CHAIN SIZE:
- 520
- MOUNTING POSITION:
- REAR
MSRP: $28.95Now: $19.00Was: $28.95 -
JT SPROCKETS Sprocket - Rear - Honda - 47-Tooth JTR215.47
JT SPROCKETS
$24.43A rear sprocket is fundamental to your drivetrain's acceleration, top-end speed, and overall power delivery. The JT Sprockets 47-tooth rear sprocket delivers precision engineering and durability that withstands high-RPM demands while keeping rotating...JTR21547- SKU:
- JTR21547
- Availability:
- Ships Same Business Day
- Weight:
- 1.70 LBS
- MATERIAL:
- STEEL
- CHAIN SIZE:
- 420
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- MODEL:
- HONDA
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 47
$24.43 -
JT SPROCKETS Sprocket - Rear - Honda - 55-Tooth JTR217.55
JT SPROCKETS
$29.85A properly sized rear sprocket is critical for optimizing your Honda's powerband characteristics and acceleration delivery. The JT Sprockets 55-tooth rear sprocket combines precision engineering with proven durability, delivering the exact gear ratio...JTR21755- SKU:
- JTR21755
- Availability:
- Ships Same Business Day
- Weight:
- 2.30 LBS
- MODEL:
- HONDA
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- OFF-ROAD
- TOOTH COUNT:
- 55
- CHAIN SIZE:
- 428
- MATERIAL:
- STEEL
- UNITS:
- EACH
$29.85 -
JT SPROCKETS Counter Shaft Sprocket - 12-Tooth JTF1323.12
JT SPROCKETS
$16.75A properly sized counter shaft sprocket is critical to your bike's acceleration, top-end performance, and drivetrain longevity. The JT Sprockets 12-tooth counter shaft sprocket delivers the strength and precision required for reliable power delivery,...12120217- SKU:
- 12120217
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- CHAIN SIZE:
- 520
- RIDING STYLE:
- STREET
- TYPE:
- COUNTERSHAFT
- UNITS:
- EACH
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- MOUNTING POSITION:
- FRONT
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 12
$16.75
