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 50-Tooth Black Rear Sprocket for KTM 224U-520-50GPBK
RENTHAL
$99.82Enhance your KTM's performance with the RENTHAL 50-Tooth Rear Sprocket. Crafted from high-strength 7075-T6 aluminum alloy, this sprocket offers a lightweight yet durable solution for your off-road adventures. Its self-cleaning mud grooves at each tooth...12110047- SKU:
- 12110047
- Availability:
- Ships Same Business Day
- Weight:
- 1.15 LBS
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- OFF-ROAD
- CHAIN SIZE:
- 520
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- MOUNTING POSITION:
- REAR
- TYPE:
- DRIVE
- MATERIAL:
- 7075-T6 ALUMINUM
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 50
$99.82 -
Renthal Ultralight Rear Sprocket 52T Black 224U-520-52GPBK
RENTHAL
$99.82Enhance your KTM's performance with the RENTHAL 52-Tooth Black Rear Sprocket. Crafted from a high-strength 7075-T6 aluminum alloy, this sprocket offers a lightweight yet durable solution for your off-road adventures. Its precision CNC-machined design...12110049- SKU:
- 12110049
- Availability:
- Ships Same Business Day
- Weight:
- 1.10 LBS
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 52
- UNITS:
- EACH
- TYPE:
- DRIVE
- COLOR/FINISH:
- BLACK
- MATERIAL:
- 7075-T6 ALUMINUM
- RIDING STYLE:
- OFF-ROAD
- CHAIN SIZE:
- 520
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
$99.82 -
Renthal 45-Tooth 520 Rear Sprocket for KTM 224U-520-45GPSI
RENTHAL
$99.82Enhance your KTM's performance with the RENTHAL 45-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 for improved...12110078- SKU:
- 12110078
- Availability:
- Ships Same Business Day
- Weight:
- 0.90 LBS
- CHAIN SIZE:
- 520
- MATERIAL:
- 7075-T6 ALUMINUM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- SILVER
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- DRIVE
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 45
- UNITS:
- EACH
- MOUNTING POSITION:
- REAR
$99.82 -
Renthal Ultralight Rear Sprocket 46T 520 Chain KTM Husqvarna Husaberg 224U-520-46GPSI
RENTHAL
$99.82Enhance your KTM's performance with the RENTHAL 46-Tooth Rear Sprocket, precision-engineered from high-strength 7075 T6 aluminum alloy. This ultralight sprocket offers a 66% weight reduction compared to steel counterparts, while maintaining exceptional...12110079- SKU:
- 12110079
- Availability:
- Ships Same Business Day
- Weight:
- 0.90 LBS
- 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:
- 46
- COLOR/FINISH:
- SILVER
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
$99.82 -
Renthal 50-Tooth Rear Sprocket for KTM 65 SX 192U-420-50GPSI
RENTHAL
$99.82Enhance your KTM's performance with the RENTHAL 50-Tooth Rear Sprocket, precision-engineered for durability and lightweight efficiency. Crafted from a specially enhanced 7075-T6 aluminum alloy, this sprocket offers exceptional strength while reducing...12110087- SKU:
- 12110087
- Availability:
- Ships Same Business Day
- Weight:
- 0.80 LBS
- TYPE:
- DRIVE
- UNITS:
- EACH
- CHAIN SIZE:
- 420
- MOUNTING POSITION:
- REAR
- COLOR/FINISH:
- SILVER
- MATERIAL:
- 7075-T6 ALUMINUM
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 50
$99.82 -
Renthal 47-Tooth Rear Sprocket for KTM 85 SX 17/14 85 SX 19/16 105 SX 441U-428-47GPSI
RENTHAL
$99.82Enhance your KTM's performance with the RENTHAL 47-Tooth Rear Sprocket, precision-engineered for durability and efficiency. Crafted from a specially enhanced 7075-T6 aluminum alloy, this sprocket offers a lightweight yet robust solution for off-road...12110089- SKU:
- 12110089
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
- CHAIN SIZE:
- 428
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 47
- UNITS:
- EACH
- MOUNTING POSITION:
- REAR
- MATERIAL:
- 7075-T6 ALUMINUM
- COLOR/FINISH:
- SILVER
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- DRIVE
$99.82 -
Renthal 50-Tooth Rear Sprocket for KTM 85 SX 17/14 85 SX 19/16 105 SX 441U-428-50GPSI
RENTHAL
$99.82Enhance your off-road performance with the RENTHAL 50-Tooth Rear Sprocket, precision-engineered for KTM motorcycles. Crafted from a specially enhanced 7075-T6 aluminum alloy, this sprocket offers a perfect balance of strength and weight savings. Its...12110092- SKU:
- 12110092
- Availability:
- Ships Same Business Day
- Weight:
- 0.80 LBS
- COLOR/FINISH:
- SILVER
- RIDING STYLE:
- OFF-ROAD
- CHAIN SIZE:
- 428
- UNITS:
- EACH
- MOUNTING POSITION:
- REAR
- TYPE:
- DRIVE
- MATERIAL:
- 7075-T6 ALUMINUM
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 50
$99.82 -
Renthal 53-Tooth Rear Sprocket for Honda 154U-520-53GRBK
RENTHAL
$99.82Enhance your Honda motorcycle's performance with the RENTHAL 53-Tooth Rear Sprocket. Crafted from high-quality 7075-T6 aluminum alloy, this sprocket offers a lightweight yet durable solution for riders seeking improved acceleration and handling. Its...12110179- SKU:
- 12110179
- Availability:
- Ships Same Business Day
- Weight:
- 1.11 LBS
- MOUNTING POSITION:
- REAR
- TYPE:
- DRIVE
- CHAIN SIZE:
- 520
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- OFF-ROAD
- TOOTH COUNT:
- 53
- MATERIAL:
- 7075-T6 ALUMINUM
- PRODUCT NAME:
- SPROCKET
$99.82 -
Renthal 53-Tooth Rear Sprocket for Honda Red 154U-520-53GRRD
RENTHAL
$104.61Enhance your Honda motorcycle's performance with the RENTHAL 53-Tooth Rear Sprocket. Crafted from high-quality 7075-T6 aluminum alloy, this sprocket offers a lightweight yet durable solution for riders seeking improved acceleration and handling. Its...12110180- SKU:
- 12110180
- Availability:
- Ships Same Business Day
- Weight:
- 1.16 LBS
- TOOTH COUNT:
- 53
- MATERIAL:
- 7075-T6 ALUMINUM
- PRODUCT NAME:
- SPROCKET
- CHAIN SIZE:
- 520
- COLOR/FINISH:
- RED
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- TYPE:
- DRIVE
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
$104.61 -
Renthal 47-Tooth Black Rear Sprocket for Kawasaki 121U-428-47GPBK
RENTHAL
$99.82Enhance your Kawasaki's performance with the RENTHAL 47-Tooth Rear Sprocket. Crafted from a specially enhanced 7075-T6 aluminum alloy, this sprocket offers exceptional strength and durability while being 66% lighter than traditional steel options. Its...12110281- SKU:
- 12110281
- Availability:
- Ships Same Business Day
- Weight:
- 0.80 LBS
- COLOR/FINISH:
- BLACK
- MATERIAL:
- 7075-T6 ALUMINUM
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- DRIVE
- CHAIN SIZE:
- 428
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 47
- UNITS:
- EACH
- MOUNTING POSITION:
- REAR
$99.82 -
Renthal Black 48-Tooth Rear Sprocket for 428 Chain 121U-428-48GPBK
RENTHAL
$99.82Enhance your Kawasaki's performance with the RENTHAL 48-Tooth Rear Sprocket. Crafted from a specially enhanced 7075-T6 aluminum alloy, this sprocket offers exceptional strength and durability while being 66% lighter than traditional steel sprockets. Its...12110282- SKU:
- 12110282
- Availability:
- Ships Same Business Day
- Weight:
- 0.90 LBS
- MATERIAL:
- 7075-T6 ALUMINUM
- MOUNTING POSITION:
- REAR
- CHAIN SIZE:
- 428
- PRODUCT NAME:
- SPROCKET
- UNITS:
- EACH
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- OFF-ROAD
- TOOTH COUNT:
- 48
- TYPE:
- DRIVE
$99.82 -
Renthal 47-Tooth Blue Rear Sprocket for Yamaha YZ85 121U-428-47GPBU
RENTHAL
$104.61Enhance your Yamaha's performance with the RENTHAL 47-Tooth Rear Sprocket, precision-engineered for durability and lightweight efficiency. Crafted from a specially enhanced 7075-T6 aluminum alloy, this sprocket offers exceptional strength while being 66%...12110285- SKU:
- 12110285
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
- MOUNTING POSITION:
- REAR
- TYPE:
- DRIVE
- CHAIN SIZE:
- 428
- COLOR/FINISH:
- BLUE
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- MATERIAL:
- 7075-T6 ALUMINUM
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 47
$104.61 -
Renthal 48T Blue Rear Sprocket for Yamaha YZ85 1993-2026 121U-428-48GPBU
RENTHAL
$104.61Enhance your Yamaha's performance with the RENTHAL 48-Tooth Rear Sprocket, precision-engineered from 7075-T6 aluminum alloy for exceptional strength and reduced weight. Its self-cleaning mud grooves at each tooth prevent buildup, ensuring consistent...12110286- SKU:
- 12110286
- Availability:
- Ships Same Business Day
- Weight:
- 0.80 LBS
- MOUNTING POSITION:
- REAR
- TYPE:
- DRIVE
- MATERIAL:
- 7075-T6 ALUMINUM
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- OFF-ROAD
- TOOTH COUNT:
- 48
- CHAIN SIZE:
- 428
- COLOR/FINISH:
- BLUE
- UNITS:
- EACH
$104.61 -
Renthal 49T Blue Rear Sprocket 428 Chain 121U-428-49GPBU
RENTHAL
$104.61Enhance your Yamaha's performance with the RENTHAL 49-Tooth Rear Sprocket. Crafted from high-strength 7075-T6 aluminum alloy, this sprocket offers a lightweight yet durable solution for off-road enthusiasts. Its self-cleaning mud grooves at each tooth...12110287- SKU:
- 12110287
- Availability:
- Ships Same Business Day
- Weight:
- 0.85 LBS
- MATERIAL:
- 7075-T6 ALUMINUM
- COLOR/FINISH:
- BLUE
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- DRIVE
- UNITS:
- EACH
- CHAIN SIZE:
- 428
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 49
- MOUNTING POSITION:
- REAR
$104.61 -
Renthal 50-Tooth Aluminum Rear Sprocket for Yamaha 121U-428-50GPBU
RENTHAL
$104.61Enhance your Yamaha's performance with the RENTHAL 50-Tooth Rear Sprocket. Crafted from a specially enhanced 7075-T6 aluminum alloy, this sprocket offers exceptional durability while being 66% lighter than steel. Its precision CNC-machined design...12110288- SKU:
- 12110288
- Availability:
- Ships Same Business Day
- Weight:
- 0.85 LBS
- MOUNTING POSITION:
- REAR
- MATERIAL:
- 7075-T6 ALUMINUM
- CHAIN SIZE:
- 428
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 50
- COLOR/FINISH:
- BLUE
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- DRIVE
- UNITS:
- EACH
$104.61 -
Renthal Red 49-Tooth Rear Sprocket for Honda CR80R CR85R CRF150R 189U-420-49GRRD
RENTHAL
$104.61Enhance your Honda's performance with the RENTHAL 49-Tooth Rear Sprocket, crafted from a specially enhanced 7075-T6 aluminum alloy. This ultralight sprocket is approximately 66% lighter than steel, yet incredibly durable, providing maximum power transfer...12110289- SKU:
- 12110289
- Availability:
- Ships Same Business Day
- Weight:
- 0.70 LBS
- UNITS:
- EACH
- CHAIN SIZE:
- 420
- COLOR/FINISH:
- RED
- MOUNTING POSITION:
- REAR
- MATERIAL:
- 7075-T6 ALUMINUM
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 49
- TYPE:
- DRIVE
$104.61 -
Renthal 50-Tooth Rear Sprocket Red 420 Chain Honda CRF CR 189U-420-50GRRD
RENTHAL
$104.61Enhance your Honda motorcycle's performance with the RENTHAL 50-Tooth Rear Sprocket. Crafted from a specially enhanced 7075-T6 aluminum alloy, this sprocket offers a perfect balance between strength and weight reduction. Its ultralight design is...12110290- SKU:
- 12110290
- Availability:
- Ships Same Business Day
- Weight:
- 0.55 LBS
- MATERIAL:
- 7075-T6 ALUMINUM
- RIDING STYLE:
- OFF-ROAD
- CHAIN SIZE:
- 420
- COLOR/FINISH:
- RED
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- UNITS:
- EACH
- TOOTH COUNT:
- 50
- TYPE:
- DRIVE
$104.61 -
Renthal Red 55T Rear Sprocket for Honda CR80R CR85R CRF150R 189U-420-55GRRD
RENTHAL
$104.61Enhance your Honda motorcycle's performance with the RENTHAL 189U-420-55GRRD rear sprocket. Crafted from a specially enhanced 7075-T6 aluminum alloy, this sprocket offers a perfect blend of strength and lightweight design. Its ultralight construction is...12110291- SKU:
- 12110291
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
- MATERIAL:
- 7075-T6 ALUMINUM
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- SPROCKET
- MOUNTING POSITION:
- REAR
- TYPE:
- DRIVE
- UNITS:
- EACH
- CHAIN SIZE:
- 420
- COLOR/FINISH:
- RED
- TOOTH COUNT:
- 55
$104.61 -
Renthal Red 56-Tooth Rear Sprocket for Honda CR80R CR85R CRF150R 189U-420-56GRRD
RENTHAL
$104.61Enhance your Honda dirt bike's performance with the RENTHAL 56-Tooth Rear Sprocket. Crafted from high-strength 7075-T6 aluminum alloy, this sprocket offers a lightweight yet durable solution for riders seeking improved acceleration and handling. Its...12110292- SKU:
- 12110292
- Availability:
- Ships Same Business Day
- Weight:
- 0.70 LBS
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- DRIVE
- UNITS:
- EACH
- COLOR/FINISH:
- RED
- MATERIAL:
- 7075-T6 ALUMINUM
- TOOTH COUNT:
- 56
- CHAIN SIZE:
- 420
- MOUNTING POSITION:
- REAR
$104.61 -
Renthal Black 50-Tooth Rear Sprocket for Kawasaki KX100 KX80 KX85 191U-420-50GEBK
RENTHAL
$99.82Enhance your Kawasaki's performance with the RENTHAL 50-Tooth Rear Sprocket. Crafted from high-strength 7075-T6 aluminum alloy, this sprocket offers a lightweight yet durable solution for your off-road adventures. Its self-cleaning mud grooves at each...12110298- SKU:
- 12110298
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
- TYPE:
- DRIVE
- UNITS:
- EACH
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 50
- COLOR/FINISH:
- BLACK
- MATERIAL:
- 7075-T6 ALUMINUM
- RIDING STYLE:
- OFF-ROAD
- CHAIN SIZE:
- 420
- MOUNTING POSITION:
- REAR
$99.82
