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
JT SPROCKETS Rear Sprocket - Orange - 45-Tooth JTA897.45ORG
JT SPROCKETS
MSRP: $35.50Now: $31.60Was: $35.50A properly matched rear sprocket is critical for optimizing your power delivery and achieving your target RPM range at peak performance. The JT RaceLite 45-tooth rear sprocket delivers the durability and precision that professional racers and serious...12112689- SKU:
- 12112689
- Availability:
- Ships Same Business Day
- Weight:
- 0.85 LBS
- TOOTH COUNT:
- 45
- TYPE:
- REAR
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- CHAIN SIZE:
- 520
- COLOR/FINISH:
- ORANGE
- MATERIAL:
- 7075-T6 ALUMINUM
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- STREET
MSRP: $35.50Now: $31.60Was: $35.50 -
On Sale
JT SPROCKETS Rear Sprocket - Orange - 47-Tooth JTA897.47ORG
JT SPROCKETS
MSRP: $37.38Now: $33.27Was: $37.38A properly matched rear sprocket is essential for optimizing your bike's acceleration, top-end speed, and overall drivetrain efficiency. The JT SPROCKETS 47-tooth rear sprocket delivers the durability and precision required for both track and street...12112690- SKU:
- 12112690
- Availability:
- Ships Same Business Day
- Weight:
- 0.85 LBS
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- TYPE:
- REAR
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- OFF-ROAD
- TOOTH COUNT:
- 47
- UNITS:
- EACH
- CHAIN SIZE:
- 520
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- ORANGE
- MATERIAL:
- 7075-T6 ALUMINUM
- MOUNTING POSITION:
- REAR
MSRP: $37.38Now: $33.27Was: $37.38 -
On Sale
JT SPROCKETS Rear Sprocket - Orange - 49-Tooth JTA897.49ORG
JT SPROCKETS
MSRP: $38.88Now: $34.60Was: $38.88A properly matched rear sprocket is fundamental to maximizing your bike's acceleration, top-end speed, and overall drivetrain efficiency. The JT SPROCKETS 49-tooth rear sprocket delivers the precision engineering and durability required for sustained...12112692- SKU:
- 12112692
- Availability:
- Ships Same Business Day
- Weight:
- 0.95 LBS
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- OFF-ROAD
- TOOTH COUNT:
- 49
- CHAIN SIZE:
- 520
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- ORANGE
- MATERIAL:
- 7075-T6 ALUMINUM
- TYPE:
- REAR
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- UNITS:
- EACH
MSRP: $38.88Now: $34.60Was: $38.88 -
On Sale
JT SPROCKETS Counter Shaft Sprocket - 14-Tooth JTF1256.14
JT SPROCKETS
MSRP: $7.53Now: $6.70Was: $7.53Counter shaft sprockets are critical to your motorcycle's power delivery and acceleration characteristics. The JT 14-tooth delivers aggressive low-end response while maintaining durability under sustained high-RPM load—essential whether you're...JTF125614- SKU:
- JTF125614
- Availability:
- Ships Same Business Day
- Weight:
- 0.31 LBS
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- CHAIN SIZE:
- 420
- MOUNTING POSITION:
- FRONT
- PRODUCT NAME:
- SPROCKET
- UNITS:
- EACH
- TOOTH COUNT:
- 14
- MODEL:
- HONDA
- TYPE:
- COUNTERSHAFT
MSRP: $7.53Now: $6.70Was: $7.53 -
On Sale
JT SPROCKETS Counter Shaft Sprocket - 15-Tooth JTF1256.15
JT SPROCKETS
MSRP: $7.53Now: $6.70Was: $7.53A precise counter shaft sprocket is fundamental to your motorcycle's power delivery and acceleration characteristics. The JT Sprockets 15-Tooth Counter Shaft Sprocket uses computer-optimized design to deliver maximum strength without unnecessary weight,...JTF125615- SKU:
- JTF125615
- Availability:
- Ships Same Business Day
- Weight:
- 0.24 LBS
- MODEL:
- HONDA
- TYPE:
- COUNTERSHAFT
- CHAIN SIZE:
- 420
- MATERIAL:
- STEEL
- MOUNTING POSITION:
- FRONT
- PRODUCT NAME:
- SPROCKET
- UNITS:
- EACH
- TOOTH COUNT:
- 15
- RIDING STYLE:
- OFF-ROAD
MSRP: $7.53Now: $6.70Was: $7.53 -
On Sale
JT SPROCKETS Counter Shaft Sprocket - 13-Tooth JTF1336.13
JT SPROCKETS
MSRP: $16.73Now: $14.89Was: $16.73A lightweight front sprocket engineered for maximum strength without compromising acceleration response. The JT 13-tooth design delivers precise power delivery and consistent engagement, essential for riders demanding reliability in competitive or...JTF133613- SKU:
- JTF133613
- Availability:
- Ships Same Business Day
- Weight:
- 0.27 LBS
- CHAIN SIZE:
- 520
- TYPE:
- COUNTERSHAFT
- MODEL:
- HONDA
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 13
- UNITS:
- EACH
- MATERIAL:
- STEEL
- MOUNTING POSITION:
- FRONT
MSRP: $16.73Now: $14.89Was: $16.73 -
On Sale
JT SPROCKETS Counter Shaft Sprocket - 14-Tooth JTF1336.14
JT SPROCKETS
MSRP: $16.73Now: $14.89Was: $16.73A properly sized counter shaft sprocket is fundamental to your bike's acceleration and top-end performance—get the wrong tooth count and you're leaving power on the table. The JT JTF1336.14 14-tooth sprocket is engineered to deliver crisp throttle...JTF133614- SKU:
- JTF133614
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- COLOR/FINISH:
- SILVER
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- CHAIN SIZE:
- 520
- MOUNTING POSITION:
- FRONT
- PRODUCT NAME:
- SPROCKET
- TYPE:
- COUNTERSHAFT
- TOOTH COUNT:
- 14
MSRP: $16.73Now: $14.89Was: $16.73Qty in Cart: 0Quantity:Price:MSRP: $16.73Now: $14.89Was: $16.73Subtotal: -
On Sale
JT SPROCKETS Counter Shaft Sprocket - 15-Tooth JTF284.15
JT SPROCKETS
MSRP: $14.95Now: $13.31Was: $14.95A counter shaft sprocket is critical to your transmission's efficiency and acceleration response—it directly affects how power transfers from your engine to the wheels. The JT Sprockets 15-tooth design optimizes gear ratios for aggressive acceleration...JTF28415- SKU:
- JTF28415
- Availability:
- Ships Same Business Day
- Weight:
- 0.38 LBS
- CHAIN SIZE:
- 520
- MATERIAL:
- STEEL
- MODEL:
- HONDA
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- COUNTERSHAFT
- UNITS:
- EACH
- MOUNTING POSITION:
- FRONT
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 15
MSRP: $14.95Now: $13.31Was: $14.95 -
On Sale
JT SPROCKETS Sprocket - Rear - Suzuki - 47 Tooth JTR808.47SC
JT SPROCKETS
MSRP: $29.55Now: $26.30Was: $29.55A quality rear sprocket is fundamental to optimizing your Suzuki's acceleration, top-end performance, and drivetrain efficiency. The JT Sprockets 47-tooth rear sprocket delivers the precision engineering and material science required for demanding track...12102517- SKU:
- 12102517
- Availability:
- Ships Same Business Day
- Weight:
- 0.66 LBS
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 47
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- CHAIN SIZE:
- 520
- RIDING STYLE:
- STREET
- MATERIAL:
- C45 HIGH-CARBON STEEL
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
MSRP: $29.55Now: $26.30Was: $29.55 -
On Sale
JT SPROCKETS Counter Shaft Sprocket - 15-Tooth JTF249.15
JT SPROCKETS
MSRP: $6.53Now: $5.81Was: $6.53A worn or incorrect counter shaft sprocket directly impacts your motorcycle's acceleration response and overall drivetrain efficiency. The JT Sprockets 15-tooth counter shaft sprocket is computer-designed to deliver optimal strength-to-weight ratio,...12120225- SKU:
- 12120225
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- TOOTH COUNT:
- 15
- CHAIN SIZE:
- 420
- MATERIAL:
- STEEL
- MOUNTING POSITION:
- FRONT
- PRODUCT NAME:
- SPROCKET
- TYPE:
- COUNTERSHAFT
- RIDING STYLE:
- STREET
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
MSRP: $6.53Now: $5.81Was: $6.53 -
On Sale
JT SPROCKETS Counter Shaft Sprocket - 13-Tooth JTF548.13
JT SPROCKETS
MSRP: $7.20Now: $6.41Was: $7.20A properly sized counter shaft sprocket is critical to your bike's acceleration response and overall drivetrain efficiency. The JT Sprockets 13-tooth design delivers the aggressive gearing you need for competitive track performance or spirited street...12120121- SKU:
- 12120121
- Availability:
- Ships Same Business Day
- Weight:
- 0.21 LBS
- CHAIN SIZE:
- 428
- TOOTH COUNT:
- 13
- TYPE:
- COUNTERSHAFT
- UNITS:
- EACH
- MOUNTING POSITION:
- FRONT
- RIDING STYLE:
- OFF-ROAD
- MATERIAL:
- CHROMOLY STEEL
- MODEL:
- YAMAHA
- PRODUCT NAME:
- SPROCKET
MSRP: $7.20Now: $6.41Was: $7.20 -
On Sale
JT SPROCKETS Counter Shaft Sprocket - 14-Tooth JTF1309.14
JT SPROCKETS
MSRP: $15.05Now: $13.39Was: $15.05A reliable counter shaft sprocket is critical to maintaining precise power delivery and chain synchronization in high-performance applications. The JT Sprockets 14-Tooth Counter Shaft Sprocket uses computer-optimized design to deliver maximum strength...12120306- SKU:
- 12120306
- Availability:
- Ships Same Business Day
- Weight:
- 0.39 LBS
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- CHAIN SIZE:
- 520
- MOUNTING POSITION:
- FRONT
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- ATV
- TYPE:
- COUNTERSHAFT
- TOOTH COUNT:
- 14
MSRP: $15.05Now: $13.39Was: $15.05 -
On Sale
JT SPROCKETS Counter Shaft Sprocket - 13-Tooth JTF516.13
JT SPROCKETS
MSRP: $16.23Now: $14.44Was: $16.23A properly sized counter shaft sprocket is critical to your bike's acceleration and overall drivetrain efficiency. The JT Sprockets 13-tooth design delivers the aggressive ratio you need for quick throttle response without sacrificing top-end stability...12120681- SKU:
- 12120681
- Availability:
- Ships Same Business Day
- Weight:
- 0.28 LBS
- TOOTH COUNT:
- 13
- UNITS:
- EACH
- CHAIN SIZE:
- 520
- RIDING STYLE:
- STREET
- TYPE:
- COUNTERSHAFT
- MATERIAL:
- STEEL
- MOUNTING POSITION:
- FRONT
- PRODUCT NAME:
- SPROCKET
MSRP: $16.23Now: $14.44Was: $16.23Qty in Cart: 0Quantity:Price:MSRP: $16.23Now: $14.44Was: $16.23Subtotal: -
On Sale
JT SPROCKETS Counter Shaft Sprocket - 13-Tooth JTF249.13
JT SPROCKETS
MSRP: $6.53Now: $5.81Was: $6.53A properly sized counter shaft sprocket is critical to your bike's acceleration and top-end performance. The JT Sprockets 13-tooth delivers the aggressive gearing ratio you need for track work or aggressive street riding, without sacrificing reliability...12120223- SKU:
- 12120223
- Availability:
- Ships Same Business Day
- Weight:
- 0.18 LBS
- RIDING STYLE:
- STREET
- TYPE:
- COUNTERSHAFT
- UNITS:
- EACH
- TOOTH COUNT:
- 13
- CHAIN SIZE:
- 420
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- MOUNTING POSITION:
- FRONT
- PRODUCT NAME:
- SPROCKET
MSRP: $6.53Now: $5.81Was: $6.53 -
On Sale
JT SPROCKETS Countershaft Sprocket - 13 Tooth JTF565.13SC
JT SPROCKETS
MSRP: $11.83Now: $10.53Was: $11.83A properly sized countershaft sprocket is critical to your bike's acceleration, top-end speed, and overall drivetrain efficiency. The JT Sprockets 13-tooth countershaft sprocket delivers the precision engineering and material quality that racers depend...12120521- SKU:
- 12120521
- Availability:
- Ships Same Business Day
- Weight:
- 0.23 LBS
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- ATV
- TYPE:
- COUNTERSHAFT
- UNITS:
- EACH
- MATERIAL:
- STEEL
- MOUNTING POSITION:
- FRONT
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- OFF-ROAD
- TOOTH COUNT:
- 13
- CHAIN SIZE:
- 520
- RIDING STYLE:
- STREET
MSRP: $11.83Now: $10.53Was: $11.83 -
On Sale
JT SPROCKETS Counter Shaft Sprocket - 13-Tooth JTF1446.13SC
JT SPROCKETS
MSRP: $17.73Now: $15.78Was: $17.73A lightweight counter shaft sprocket engineered for maximum strength without compromising acceleration response or reliability. The JT 13-tooth design delivers the precision fitment and durability demanded by serious riders who refuse to sacrifice...12120508- SKU:
- 12120508
- Availability:
- Ships Same Business Day
- Weight:
- 0.22 LBS
- MATERIAL:
- STEEL
- MOUNTING POSITION:
- FRONT
- PRODUCT NAME:
- SPROCKET
- TYPE:
- COUNTERSHAFT
- CHAIN SIZE:
- 520
- RIDING STYLE:
- STREET
- RIDING STYLE:
- OFF-ROAD
- TOOTH COUNT:
- 13
- UNITS:
- EACH
MSRP: $17.73Now: $15.78Was: $17.73 -
On Sale
JT SPROCKETS Counter Shaft Sprocket - 13-Tooth JTF558.13
JT SPROCKETS
MSRP: $7.20Now: $6.41Was: $7.20A counter shaft sprocket is the critical link between your engine's power delivery and your transmission's efficiency. The JT Sprockets 13-tooth design optimizes acceleration and gear ratio performance, making it essential for racers seeking precise...JTF55813- SKU:
- JTF55813
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- COLOR/FINISH:
- NATURAL
- MODEL:
- YAMAHA
- MOUNTING POSITION:
- FRONT
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- COUNTERSHAFT
- CHAIN SIZE:
- 428
- MATERIAL:
- STEEL
- TOOTH COUNT:
- 13
- UNITS:
- EACH
MSRP: $7.20Now: $6.41Was: $7.20 -
On Sale
JT SPROCKETS Countershaft Sprocket - 14 Tooth JTF1901.14SC
JT SPROCKETS
MSRP: $17.00Now: $15.13Was: $17.00A properly sized countershaft sprocket is critical for optimizing your bike's power delivery, acceleration, and overall drivetrain efficiency. The JT 14-tooth countershaft sprocket delivers the precision engineering and durability demanded by serious...12120514- SKU:
- 12120514
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- MATERIAL:
- STEEL
- MOUNTING POSITION:
- FRONT
- PRODUCT NAME:
- SPROCKET
- TYPE:
- COUNTERSHAFT
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- CHAIN SIZE:
- 520
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- NATURAL
- TOOTH COUNT:
- 14
MSRP: $17.00Now: $15.13Was: $17.00 -
On Sale
JT SPROCKETS Sprocket - Rear - Kawasaki/Suzuki - 40-Tooth JTR499.40
JT SPROCKETS
MSRP: $34.13Now: $30.38Was: $34.13A worn or undersized rear sprocket directly impacts your acceleration, top-end speed, and overall drivetrain efficiency. The JT Sprockets 40-tooth rear sprocket delivers computer-optimized tooth geometry and heat-treated C45 steel construction to handle...JTR49940- SKU:
- JTR49940
- Availability:
- Ships Same Business Day
- Weight:
- 2.20 LBS
- CHAIN SIZE:
- 530
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- TOOTH COUNT:
- 40
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- MATERIAL:
- STEEL
MSRP: $34.13Now: $30.38Was: $34.13 -
On Sale
JT SPROCKETS Counter Shaft Sprocket - 14-Tooth JTF1902.14
JT SPROCKETS
MSRP: $16.18Now: $14.40Was: $16.18A properly sized counter shaft sprocket is critical to achieving your target gearing and engine RPM band—and this 14-tooth JT sprocket delivers the precision engineering required for consistent performance across aggressive riding conditions...JTF190214- SKU:
- JTF190214
- Availability:
- Ships Same Business Day
- Weight:
- 0.31 LBS
- MATERIAL:
- STEEL
- MODEL:
- KTM
- MOUNTING POSITION:
- FRONT
- RIDING STYLE:
- OFF-ROAD
- TOOTH COUNT:
- 14
- CHAIN SIZE:
- 520
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- STREET
- TYPE:
- COUNTERSHAFT
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- UNITS:
- EACH
MSRP: $16.18Now: $14.40Was: $16.18
