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 Rear Sprocket - Honda - Black - 49 Tooth JTA210.49BLK
JT SPROCKETS
$38.88Computer-designed to achieve ultimate strength at minimum weight, JT combines leading-edge technology with top materials to produce the ultimate quality sprocket range with unbeatable value, Every sprocket meets or exceeds the highest possible quality...12112642- SKU:
- 12112642
- Availability:
- Ships Same Business Day
- Weight:
- 0.96 LBS
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- OFF-ROAD
- TOOTH COUNT:
- 49
- COLOR/FINISH:
- BLACK
- MATERIAL:
- 7075-T6 ALUMINUM
- MOUNTING POSITION:
- REAR
- TYPE:
- DRIVE
- CHAIN SIZE:
- 520
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$38.88 -
JT SPROCKETS Rear Sprocket - Honda - Black - 50 Tooth JTA210.50BLK
JT SPROCKETS
$40.35Computer-designed to achieve ultimate strength at minimum weight, JT combines leading-edge technology with top materials to produce the ultimate quality sprocket range with unbeatable value, Every sprocket meets or exceeds the highest possible quality...12112643- SKU:
- 12112643
- Availability:
- Ships Same Business Day
- Weight:
- 0.95 LBS
- CHAIN SIZE:
- 520
- MATERIAL:
- 7075-T6 ALUMINUM
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- OFF-ROAD
- TOOTH COUNT:
- 50
- UNITS:
- EACH
- COLOR/FINISH:
- BLACK
- TYPE:
- DRIVE
$40.35 -
JT SPROCKETS Rear Sprocket - Honda - Black - 51 Tooth JTA210.51BLK
JT SPROCKETS
$41.43Computer-designed to achieve ultimate strength at minimum weight, JT combines leading-edge technology with top materials to produce the ultimate quality sprocket range with unbeatable value, Every sprocket meets or exceeds the highest possible quality...12112644- SKU:
- 12112644
- Availability:
- Ships Same Business Day
- Weight:
- 1.25 LBS
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- OFF-ROAD
- TOOTH COUNT:
- 51
- TYPE:
- DRIVE
- COLOR/FINISH:
- BLACK
- UNITS:
- EACH
- CHAIN SIZE:
- 520
- MATERIAL:
- 7075-T6 ALUMINUM
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- STREET
$41.43 -
JT SPROCKETS Sprocket - Rear - 49-Tooth JTR822.49
JT SPROCKETS
$36.08Computer-designed to achieve ultimate strength at minimum weight, JT combines leading-edge technology with top materials to produce the ultimate quality sprocket range with unbeatable value, Every sprocket meets or exceeds the highest possible quality...JTR82249- SKU:
- JTR82249
- Availability:
- Ships Same Business Day
- Weight:
- 2.50 LBS
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 49
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- MOUNTING POSITION:
- REAR
- UNITS:
- EACH
- CHAIN SIZE:
- 520
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
$36.08Qty in Cart: 0Quantity:Price:$36.08Subtotal: -
JT SPROCKETS Sprocket - Rear - Suzuki - 45-Tooth JTR829.45
JT SPROCKETS
$42.30Computer-designed to achieve ultimate strength at minimum weight, JT combines leading-edge technology with top materials to produce the ultimate quality sprocket range with unbeatable value, Every sprocket meets or exceeds the highest possible quality...JTR82945- SKU:
- JTR82945
- Availability:
- Ships Same Business Day
- Weight:
- 3.10 LBS
- MATERIAL:
- STEEL
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 45
- UNITS:
- EACH
- CHAIN SIZE:
- 530
- RIDING STYLE:
- STREET
$42.30Qty in Cart: 0Quantity:Price:$42.30Subtotal: -
JT SPROCKETS Sprocket - Rear - Suzuki - 47-Tooth JTR829.47
JT SPROCKETS
$43.28Computer-designed to achieve ultimate strength at minimum weight, JT combines leading-edge technology with top materials to produce the ultimate quality sprocket range with unbeatable value, Every sprocket meets or exceeds the highest possible quality...JTR82947- SKU:
- JTR82947
- Availability:
- Ships Same Business Day
- Weight:
- 3.40 LBS
- MATERIAL:
- STEEL
- CHAIN SIZE:
- 530
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- UNITS:
- EACH
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- STREET
- TOOTH COUNT:
- 47
$43.28 -
JT SPROCKETS Rear Sprocket - Suzuki - Black - 49-Tooth JTA808.49BLK
JT SPROCKETS
$38.88A properly sized rear sprocket is fundamental to optimizing your Suzuki's acceleration, top-end speed, and overall powerband characteristics. The JT RaceLite 49-tooth rear sprocket delivers the durability and precision required for track use and...12112669- SKU:
- 12112669
- Availability:
- Ships Same Business Day
- Weight:
- 0.95 LBS
- CHAIN SIZE:
- 520
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- STREET
- MATERIAL:
- CARBON STEEL
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- OFF-ROAD
- TOOTH COUNT:
- 49
- COLOR/FINISH:
- BLACK
- MODEL:
- SUZUKI
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- TYPE:
- REAR
- UNITS:
- EACH
$38.88 -
JT SPROCKETS Counter Shaft Sprocket - 13-Tooth JTF824.13SC
JT SPROCKETS
$18.48Counter shaft sprockets are critical to your bike's acceleration and throttle response—a worn or undersized sprocket directly impacts how power transfers to the wheel. The JT Sprockets 13-tooth counter shaft sprocket is engineered for riders who demand...12120835- SKU:
- 12120835
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- CHAIN SIZE:
- 520
- RIDING STYLE:
- STREET
- MOUNTING POSITION:
- FRONT
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- COUNTERSHAFT
- MATERIAL:
- STEEL
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- TOOTH COUNT:
- 13
- UNITS:
- EACH
$18.48 -
JT SPROCKETS Counter Shaft Sprocket - 14-Tooth JTF824.14SC
JT SPROCKETS
$18.38Computer-designed to achieve ultimate strength at minimum weight, JT combines leading-edge technology with top materials to produce the ultimate quality sprocket range with unbeatable value, Every sprocket meets or exceeds the highest possible quality...12120836- SKU:
- 12120836
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- CHAIN SIZE:
- 520
- RIDING STYLE:
- STREET
- MODEL:
- HUSQVARNA
- MOUNTING POSITION:
- FRONT
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- COUNTERSHAFT
- TOOTH COUNT:
- 14
- MATERIAL:
- STEEL
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- UNITS:
- EACH
$18.38 -
JT SPROCKETS Counter Shaft Sprocket - 15-Tooth JTF1901.15SC
JT SPROCKETS
$18.30Computer-designed to achieve ultimate strength at minimum weight, JT combines leading-edge technology with top materials to produce the ultimate quality sprocket range with unbeatable value, Every sprocket meets or exceeds the highest possible quality...12120837- SKU:
- 12120837
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
- CHAIN SIZE:
- 520
- RIDING STYLE:
- STREET
- MATERIAL:
- STEEL
- MOUNTING POSITION:
- FRONT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- COUNTERSHAFT
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- UNITS:
- EACH
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 15
$18.30 -
JT SPROCKETS Counter Shaft Sprocket - 15-Tooth JTF558.15
JT SPROCKETS
$7.05A counter shaft sprocket is critical to your transmission's efficiency and acceleration response—the wrong tooth count creates power loss and shifts that feel sluggish. The JT Sprockets 15-tooth design delivers the optimal balance between engagement...JTF55815- SKU:
- JTF55815
- Availability:
- Ships Same Business Day
- Weight:
- 0.29 LBS
- MODEL:
- YAMAHA
- MOUNTING POSITION:
- FRONT
- TOOTH COUNT:
- 15
- CHAIN SIZE:
- 428
- PRODUCT NAME:
- SPROCKET
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- COUNTERSHAFT
- UNITS:
- EACH
$7.05 -
JT SPROCKETS Sprocket - Countershaft - Kawasaki - 12 Tooth JTF1501.12
JT SPROCKETS
$8.30A properly sized countershaft sprocket is critical for achieving the correct final drive ratio and maximizing acceleration or top-end performance, depending on your gearing strategy. This 12-tooth JT sprocket delivers the durability and precision...12121290- SKU:
- 12121290
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- MATERIAL:
- CHROMOLY STEEL
- TOOTH COUNT:
- 12
- MOUNTING POSITION:
- FRONT
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- COUNTERSHAFT
- CHAIN SIZE:
- 428
- UNITS:
- EACH
$8.30 -
JT SPROCKETS Sprocket - Rear - Honda - 46-Tooth JTR1204.46
JT SPROCKETS
$22.65A properly matched rear sprocket is critical to maximizing your engine's power delivery and maintaining optimal chain tension across the RPM band. This JT 46-tooth rear sprocket delivers the precision engineering and durability required for...JTR120446- SKU:
- JTR120446
- Availability:
- Ships Same Business Day
- Weight:
- 1.90 LBS
- MODEL:
- HONDA
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- OFF-ROAD
- TOOTH COUNT:
- 46
- CHAIN SIZE:
- 428
- MATERIAL:
- STEEL
- UNITS:
- EACH
$22.65 -
JT SPROCKETS Sprocket - Rear - Honda - 45-Tooth JTR1214.45
JT SPROCKETS
$17.78A quality rear sprocket is fundamental to your drivetrain's efficiency and longevity. The JT Sprockets 45-tooth rear sprocket delivers precision engineering and durability through computer-optimized design and premium Japanese materials, ensuring...JTR121445- SKU:
- JTR121445
- Availability:
- Ships Same Business Day
- Weight:
- 1.40 LBS
- CHAIN SIZE:
- 420
- MODEL:
- HONDA
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- UNITS:
- EACH
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- TOOTH COUNT:
- 45
$17.78 -
JT SPROCKETS Sprocket - Rear - Honda - 46-Tooth JTR1214.46
JT SPROCKETS
$17.78A quality rear sprocket is foundational to your bike's acceleration, top-end performance, and chain longevity. The JT 46-tooth rear sprocket delivers precision engineering and durability without unnecessary weight, making it an essential upgrade for...JTR121446- SKU:
- JTR121446
- Availability:
- Ships Same Business Day
- Weight:
- 1.60 LBS
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 46
- UNITS:
- EACH
- CHAIN SIZE:
- 420
- MODEL:
- HONDA
- MOUNTING POSITION:
- REAR
$17.78 -
JT SPROCKETS Sprocket - Rear - Honda - 49-Tooth JTR1214.49
JT SPROCKETS
$19.63A properly matched rear sprocket is critical for optimizing your Honda's acceleration, top-end speed, and overall drivetrain efficiency. The JT Sprockets 49-tooth rear sprocket delivers the precision engineering and durability you need to maintain...JTR121449- SKU:
- JTR121449
- Availability:
- Ships Same Business Day
- Weight:
- 1.90 LBS
- UNITS:
- EACH
- MOUNTING POSITION:
- REAR
- CHAIN SIZE:
- 420
- MATERIAL:
- STEEL
- MODEL:
- HONDA
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 49
$19.63 -
JT SPROCKETS Sprocket - Rear - Honda - 39-Tooth JTR1350.39
JT SPROCKETS
$23.38A worn or mismatched rear sprocket directly impacts your Honda's acceleration, top-end speed, and overall drivetrain efficiency. The JT Sprockets 39-tooth rear sprocket delivers the precision engineering and durability you need to maintain consistent...JTR135039- SKU:
- JTR135039
- Availability:
- Ships Same Business Day
- Weight:
- 1.40 LBS
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- MATERIAL:
- STEEL
- MODEL:
- HONDA
- RIDING STYLE:
- ATV
- TOOTH COUNT:
- 39
- CHAIN SIZE:
- 520
- UNITS:
- EACH
$23.38 -
JT SPROCKETS Counter Shaft Sprocket - 13-Tooth JTF1309.13
JT SPROCKETS
$13.60If you're chasing consistent power delivery and reliable engagement through gear changes, your counter shaft sprocket is critical to the equation. The JT Sprockets 13-tooth counter shaft sprocket is engineered for riders who demand precision—delivering...12120308- SKU:
- 12120308
- Availability:
- Ships Same Business Day
- Weight:
- 0.32 LBS
- MATERIAL:
- STEEL
- MOUNTING POSITION:
- FRONT
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- ATV
- TOOTH COUNT:
- 13
- TYPE:
- COUNTERSHAFT
- UNITS:
- EACH
- CHAIN SIZE:
- 520
$13.60 -
JT SPROCKETS Counter Shaft Sprocket - 13-Tooth JTF1323.13SC
JT SPROCKETS
$16.75A precision-engineered counter shaft sprocket demands exacting tolerances and material integrity—especially when you're pushing engine performance to the edge. The JT Sprockets 13-tooth counter shaft sprocket delivers computer-optimized geometry that...12120503- SKU:
- 12120503
- Availability:
- Ships Same Business Day
- Weight:
- 0.24 LBS
- MODEL:
- HONDA
- RIDING STYLE:
- OFF-ROAD
- CHAIN SIZE:
- 520
- TYPE:
- COUNTERSHAFT
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 13
- UNITS:
- EACH
- MATERIAL:
- STEEL
- MOUNTING POSITION:
- FRONT
$16.75 -
JT SPROCKETS Counter Shaft Sprocket - 14-Tooth JTF1323.14SC
JT SPROCKETS
$17.73Counter shaft sprockets are critical to your engine's power delivery and acceleration characteristics—choose the wrong tooth count and you'll sacrifice either top-end speed or low-end grunt. The JT Sprockets 14-tooth counter shaft sprocket is...12120504- SKU:
- 12120504
- Availability:
- Ships Same Business Day
- Weight:
- 0.29 LBS
- CHAIN SIZE:
- 520
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- MOUNTING POSITION:
- FRONT
- PRODUCT NAME:
- SPROCKET
- TYPE:
- COUNTERSHAFT
- MODEL:
- HONDA
- TOOTH COUNT:
- 14
$17.73
