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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Renthal 45-Tooth Rear Sprocket for Honda 520 Chain Silver 154U-520-45GRSI
RENTHAL
$99.82Enhance your Honda motorcycle's performance with the RENTHAL 45-Tooth Rear Sprocket. Crafted from a specially enhanced 7075-T6 aluminum alloy, this sprocket offers a perfect balance of strength and lightweight design. Its CNC-machined self-cleaning mud...R15445- SKU:
- R15445
- Availability:
- Ships Same Business Day
- Weight:
- 0.95 LBS
- COLOR/FINISH:
- SILVER
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- CHAIN SIZE:
- 520
- MATERIAL:
- 7075-T6 ALUMINUM
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- DRIVE
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 45
- UNITS:
- EACH
$99.82 -
Renthal 50-Tooth Rear Sprocket for Honda CRF250R CRF450R CRF450X 154U-520-50GRSI
RENTHAL
$99.82Enhance your Honda's performance with the RENTHAL 50-Tooth Rear Sprocket, precision-engineered from 7075-T6 aluminum alloy. This ultralight sprocket is 66% lighter than steel, yet offers exceptional durability. Its self-cleaning mud grooves at each tooth...R15450- SKU:
- R15450
- Availability:
- Ships Same Business Day
- Weight:
- 0.95 LBS
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 50
- UNITS:
- EACH
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- DRIVE
- CHAIN SIZE:
- 520
- MATERIAL:
- 7075-T6 ALUMINUM
- COLOR/FINISH:
- SILVER
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
$99.82 -
Renthal 52-Tooth Rear Sprocket for Honda 154U-520-52GRSI
RENTHAL
$99.82Enhance your Honda's performance with the RENTHAL 52-Tooth Rear Sprocket, precision-engineered for durability and lightweight efficiency. Crafted from high-strength 7075-T6 aluminum alloy, this sprocket offers a significant weight reduction of...R15452- SKU:
- R15452
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- COLOR/FINISH:
- SILVER
- CHAIN SIZE:
- 520
- MATERIAL:
- 7075-T6 ALUMINUM
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 52
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- TYPE:
- DRIVE
$99.82 -
Renthal Ultralight Rear Sprocket 50T 420 Chain Silver 191U-420-50GESI
RENTHAL
$99.82Enhance your Kawasaki's performance with the RENTHAL 50-Tooth Rear Sprocket. Crafted from high-quality 7075-T6 aluminum alloy, this sprocket offers a perfect balance of strength and lightweight design, making it an excellent upgrade for riders seeking...R19150- SKU:
- R19150
- Availability:
- Ships Same Business Day
- Weight:
- 0.70 LBS
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 50
- UNITS:
- EACH
- COLOR/FINISH:
- SILVER
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- DRIVE
- CHAIN SIZE:
- 420
- MOUNTING POSITION:
- REAR
- MATERIAL:
- 7075-T6 ALUMINUM
$99.82 -
Renthal 49-Tooth Rear Sprocket for KTM 224U-520-49GPSI
RENTHAL
$99.82Enhance your KTM's performance with the RENTHAL 49-Tooth Rear Sprocket, precision-engineered from high-strength 7075-T6 aluminum alloy. This ultralight sprocket is 66% lighter than steel, yet incredibly durable, featuring self-cleaning mud grooves at...R22449- SKU:
- R22449
- Availability:
- Ships Same Business Day
- Weight:
- 0.86 LBS
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 49
- COLOR/FINISH:
- SILVER
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- DRIVE
- UNITS:
- EACH
- CHAIN SIZE:
- 520
- MATERIAL:
- 7075-T6 ALUMINUM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
$99.82 -
Renthal 52-Tooth Ultralight Rear Sprocket for KTM 224U-520-52GPSI
RENTHAL
$99.82Enhance your KTM's performance with the RENTHAL 52-Tooth Rear Sprocket, precision-engineered from high-strength 7075-T6 aluminum alloy. This ultralight sprocket is 66% lighter than traditional steel options, reducing unsprung weight and improving...R22452- SKU:
- R22452
- Availability:
- Ships Same Business Day
- Weight:
- 0.88 LBS
- COLOR/FINISH:
- SILVER
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- CHAIN SIZE:
- 520
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- MATERIAL:
- 7075-T6 ALUMINUM
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 52
- TYPE:
- DRIVE
$99.82 -
Renthal 13-Tooth Front Sprocket for Honda CR250R CR500R CRF450R CRF450X CRF450RX CRF450RWE CRF250R CRF250RX TRX450R TRX450ER 253--520-13GP
RENTHAL
$37.95Enhance your Honda motorcycle's performance with the RENTHAL 13-Tooth Front Sprocket. Crafted from high-quality, case-hardened 655M13 nickel chromium steel, this sprocket offers exceptional strength and wear resistance. Its CNC-machined design ensures a...R25352013- SKU:
- R25352013
- Availability:
- Ships Same Business Day
- Weight:
- 0.31 LBS
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 13
- CHAIN SIZE:
- 520
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- COLOR/FINISH:
- NATURAL
- MATERIAL:
- STEEL
- MOUNTING POSITION:
- FRONT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- COUNTERSHAFT
$37.95 -
Renthal 15-Tooth Front Sprocket for Honda 253--520-15GP
RENTHAL
$37.95Enhance your Honda motorcycle's performance with the RENTHAL 15-Tooth Front Sprocket. Crafted from case-hardened and core-refined 655M13 nickel-chromium steel, this sprocket offers exceptional strength and wear resistance. Its precision CNC-machined...R25352015- SKU:
- R25352015
- Availability:
- Ships Same Business Day
- Weight:
- 0.44 LBS
- COLOR/FINISH:
- NATURAL
- MOUNTING POSITION:
- FRONT
- PRODUCT NAME:
- SPROCKET
- UNITS:
- EACH
- RIDING STYLE:
- ATV
- TOOTH COUNT:
- 15
- TYPE:
- COUNTERSHAFT
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- CHAIN SIZE:
- 520
$37.95 -
Renthal 12-Tooth Front Sprocket for Honda CR125R 1987-2003 256-520-12GP
RENTHAL
$37.95Enhance your Honda motorcycle's performance with the RENTHAL 12-Tooth Front Sprocket. Crafted from case-hardened 655M13 nickel-chromium steel, this sprocket offers exceptional durability and longevity. Its precision CNC-machined design includes...R25652012- SKU:
- R25652012
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- MOUNTING POSITION:
- FRONT
- PRODUCT NAME:
- SPROCKET
- UNITS:
- EACH
- CHAIN SIZE:
- 520
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- TOOTH COUNT:
- 12
$37.95 -
Renthal Front Sprocket 14T 428 Chain Yamaha YZ85 2002-2026 257--428-14GP
RENTHAL
$37.95Enhance your Yamaha's performance with the RENTHAL 14-Tooth Front Sprocket, engineered for durability and efficiency. Constructed from case-hardened 655M13 nickel-chromium steel, this sprocket offers exceptional strength and longevity. Its precision...R25742814- SKU:
- R25742814
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- COUNTERSHAFT
- UNITS:
- EACH
- MOUNTING POSITION:
- FRONT
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 14
- CHAIN SIZE:
- 428
$37.95 -
Renthal Front Sprocket 12T 520 Chain Yamaha YZ125 WR200R 257--520-12GP
RENTHAL
$37.95Enhance your Yamaha's performance with the RENTHAL 12-Tooth Front Sprocket, precision-engineered for durability and efficiency. Constructed from case-hardened 655-M13 nickel-chromium steel, this sprocket offers exceptional strength and longevity. Its...R25752012- SKU:
- R25752012
- Availability:
- Ships Same Business Day
- Weight:
- 0.24 LBS
- CHAIN SIZE:
- 520
- MATERIAL:
- 655M13 NICKEL CHROMIUM STEEL
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- TOOTH COUNT:
- 12
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- COUNTERSHAFT
- COLOR/FINISH:
- NATURAL
- MOUNTING POSITION:
- FRONT
- PRODUCT NAME:
- SPROCKET
- UNITS:
- EACH
$37.95 -
Renthal 13-Tooth Front Sprocket 420 Chain for Kawasaki KX Models 258--420-13GP
RENTHAL
$37.95Enhance your Kawasaki's performance with the RENTHAL 13-Tooth Front Sprocket. Crafted from high-quality 655M13 nickel-chromium steel, this sprocket offers exceptional durability and wear resistance. Its ultralight design reduces weight by 10-15%,...R25842013- SKU:
- R25842013
- Availability:
- Ships Same Business Day
- Weight:
- 0.19 LBS
- CHAIN SIZE:
- 420
- MATERIAL:
- STEEL
- MOUNTING POSITION:
- FRONT
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 13
- UNITS:
- EACH
- RIDING STYLE:
- OFF-ROAD
$37.95 -
Renthal 14T Front Sprocket for Honda CR80R CR85R CRF50F CRF70F 259--420-14GP
RENTHAL
$37.95Enhance your Honda motorcycle's performance with the RENTHAL 14-Tooth Front Sprocket. Crafted from case-hardened 655M13 nickel chromium steel, this sprocket offers exceptional durability and strength. Its precision CNC-machined design ensures a perfect...R25942014- SKU:
- R25942014
- Availability:
- Ships Same Business Day
- Weight:
- 0.19 LBS
- TOOTH COUNT:
- 14
- MATERIAL:
- STEEL
- MOUNTING POSITION:
- FRONT
- RIDING STYLE:
- OFF-ROAD
- CHAIN SIZE:
- 420
- TYPE:
- COUNTERSHAFT
- COLOR/FINISH:
- NATURAL
- PRODUCT NAME:
- SPROCKET
- UNITS:
- EACH
$37.95 -
Renthal 16T Grooved Front Sprocket for Honda XR400R TRX400EX 279--520-16GP
RENTHAL
$37.95Enhance your Honda motorcycle's performance with the RENTHAL 16-Tooth Front Sprocket. Crafted from high-quality, case-hardened 655M13 nickel-chromium steel, this sprocket offers exceptional durability and wear resistance. Its ultralight design provides a...R27952016- SKU:
- R27952016
- Availability:
- Ships Same Business Day
- Weight:
- 0.52 LBS
- MOUNTING POSITION:
- FRONT
- TOOTH COUNT:
- 16
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- ATV
- TYPE:
- FRONT
- UNITS:
- EACH
- CHAIN SIZE:
- 520
- MATERIAL:
- 655M13 NICKEL CHROMIUM STEEL
$37.95 -
Renthal Steel Front Sprocket 14T 520 Chain Honda XR600R XR650L 282--520-14GP
RENTHAL
$37.95Enhance your Honda motorcycle's performance with the RENTHAL 14-Tooth Front Sprocket. Crafted from high-quality 655M13 nickel-chromium steel, this sprocket offers exceptional durability and wear resistance. Its CNC-machined design features self-cleaning...R28252014- SKU:
- R28252014
- Availability:
- Ships Same Business Day
- Weight:
- 0.38 LBS
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FRONT
- UNITS:
- EACH
- MOUNTING POSITION:
- FRONT
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 14
- CHAIN SIZE:
- 520
- MATERIAL:
- 655M13 NICKEL CHROMIUM STEEL
$37.95 -
Renthal Front Sprocket 12-Tooth 520 Chain Kawasaki 289--520-12GP
RENTHAL
$37.95Enhance your Kawasaki motorcycle's performance with the RENTHAL 12-Tooth Front Sprocket. Crafted from high-quality, case-hardened 655M13 nickel-chromium steel, this sprocket offers exceptional durability and wear resistance. Designed with precision CNC...R28952012- SKU:
- R28952012
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- MATERIAL:
- STEEL
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- COUNTERSHAFT
- MOUNTING POSITION:
- FRONT
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- UNITS:
- EACH
- CHAIN SIZE:
- 520
- RIDING STYLE:
- STREET
- TOOTH COUNT:
- 12
$37.95 -
Renthal 13-Tooth Front Sprocket 420 Chain KTM 65 SX 1998-2008 307-420-13GP
RENTHAL
$37.95Enhance your KTM's performance with the RENTHAL 13-Tooth Front Sprocket, precision-engineered for durability and efficiency. Crafted from case-hardened 655M13 nickel-chromium-molybdenum alloy steel, this sprocket offers exceptional strength and wear...R30742013- SKU:
- R30742013
- Availability:
- Ships Same Business Day
- Weight:
- 0.19 LBS
- MATERIAL:
- 655M13 NICKEL CHROMIUM STEEL
- CHAIN SIZE:
- 420
- TYPE:
- FRONT
- UNITS:
- EACH
- RIDING STYLE:
- OFF-ROAD
- MOUNTING POSITION:
- FRONT
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 13
$37.95 -
Renthal 49-Tooth Rear Sprocket for Suzuki 123U-520-49GYSI
RENTHAL
$99.82Enhance your Suzuki's performance with the RENTHAL 49-Tooth Rear Sprocket, engineered for durability and lightweight efficiency. Crafted from high-grade 7075-T6 aluminum alloy, this sprocket features self-cleaning mud grooves to prevent debris buildup,...R12349- SKU:
- R12349
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
- MATERIAL:
- 7075-T6 ALUMINUM
- COLOR/FINISH:
- SILVER
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- DRIVE
- CHAIN SIZE:
- 520
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- UNITS:
- EACH
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 49
$99.82 -
Renthal 50-Tooth Rear Sprocket for Suzuki 123U-520-50GYSI
RENTHAL
$99.82Enhance your Suzuki's performance with the RENTHAL 50-Tooth Rear Sprocket, precision-engineered for durability and lightweight efficiency. Crafted from high-grade 7075-T6 aluminum alloy, this sprocket offers a significant weight reduction of...R12350- SKU:
- R12350
- Availability:
- Ships Same Business Day
- Weight:
- 0.81 LBS
- CHAIN SIZE:
- 520
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- TYPE:
- DRIVE
- MATERIAL:
- 7075-T6 ALUMINUM
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 50
- COLOR/FINISH:
- SILVER
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
$99.82 -
Renthal 47-Tooth Rear Sprocket for Kawasaki 420 Chain Silver 408U-420-47GESI
RENTHAL
$99.82Enhance your Kawasaki's performance with the RENTHAL 47-Tooth Rear Sprocket. Crafted from high-strength 7075-T6 aluminum alloy, this sprocket offers exceptional durability while being 66% lighter than traditional steel options. Its self-cleaning mud...R408U42047- SKU:
- R408U42047
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 47
- CHAIN SIZE:
- 420
- MOUNTING POSITION:
- REAR
- COLOR/FINISH:
- SILVER
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- DRIVE
- UNITS:
- EACH
- MATERIAL:
- 7075-T6 ALUMINUM
$99.82
