Dirt Bike Rear Sprockets
Dirt Bike Rear Sprockets for Honda, KTM, Beta & Husqvarna: 42-51 Tooth Steel & Aluminum at JJ Motorsports
Customize your dirt bike's gearing for optimal acceleration or top speed with premium rear sprockets from JJ Motorsports, precision-machined for perfect chain fit, reduced weight, and extreme durability in motocross, enduro, and trail riding. Our selection includes high-tensile steel and lightweight aluminum sprockets in 42-51 tooth counts designed for smoother power transfer, less rotational mass, and customizable ratios to match terrain or riding style. Compatible with top models like Honda CRF, KTM SX/EXC, Beta RR, Husqvarna FC/FE, and more, these race-proven sprockets from trusted brands ensure minimal chain wear, reliable performance, and longevity in muddy, rocky, or high-speed conditions. From JT Sprockets' computer-optimized steel for OEM reliability to Renthal's ultralight aluminum for racing gains, dial in your final drive for tighter woods, faster tracks, or balanced trails with the ideal tooth count.
Shop brands like JT Sprockets, Moose Racing, and Renthal for world-class quality. Explore related categories such as dirt bike front sprockets for full gearing kits or dirt bike drive chains for complete drivetrain upgrades.
Top Dirt Bike Rear Sprockets
- JT Sprockets Steel Rear Sprocket Graphite 48 Tooth JTX251.48GR – 48-tooth hardened steel rear sprocket with graphite finish; computer-designed for perfect chain alignment and durability in off-road conditions.
- JT Sprockets Rear Sprocket Beta/Honda Red 51 Tooth JTA210.51RED – Lightweight aluminum 51-tooth sprocket in red anodized finish for Beta RR and Honda CRF models; reduces unsprung weight for better acceleration.
- Moose Offroad Steel Rear Sprocket 48 Tooth 1210-BET-48-STL – Heavy-duty steel 48-tooth sprocket for Beta models; heat-treated for extreme strength and wear resistance in aggressive off-road use.
- Renthal Rear Sprocket Aluminum 42 Tooth Gas Gas/Husaberg/Husqvarna/KTM 224U-520-42GPSI – Ultralight CNC-machined aluminum 42-tooth sprocket with gold finish; precision engineering for KTM, Husqvarna, and Gas Gas models, ideal for racing.
Browse our in-stock inventory below with same-day shipping and expert support. Free shipping on orders over $99! Questions? Contact us for fitment advice!
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
-
Renthal TwinRing Rear Sprocket 51T Black 1540-520-51GPBK
RENTHAL
$142.50RENTHAL Twinring™ Rear Sprocket 51-Tooth Black 1540-520-51GPBK The RENTHAL Twinring™ Rear Sprocket combines a high-strength Ultralight™ 7075 T-6 aluminum inner ring with an electro-less nickel-coated steel outer ring, offering exceptional durability and...12100814- SKU:
- 12100814
- Availability:
- Ships Same Business Day
- Weight:
- 1.95 LBS
- CHAIN SIZE:
- 520
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- DRIVE
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 51
- UNITS:
- EACH
- MATERIAL:
- 7075-T6 ALUMINUM
$142.50 -
Renthal Twinring Rear Sprocket 52T Black 2240-520-52GPBK
RENTHAL
$142.50RENTHAL Twinring™ Rear Sprocket 52-Tooth Black 2240-520-52GPBK The RENTHAL Twinring™ Rear Sprocket combines advanced materials and engineering to deliver exceptional performance and durability for off-road enthusiasts. Featuring a high-strength...12100817- SKU:
- 12100817
- Availability:
- Ships Same Business Day
- Weight:
- 1.90 LBS
- CHAIN SIZE:
- 520
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- MATERIAL:
- 7075-T6 ALUMINUM
- PRODUCT NAME:
- SPROCKET
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- OFF-ROAD
- MOUNTING POSITION:
- REAR
- TOOTH COUNT:
- 52
- TYPE:
- DRIVE
$142.50 -
Renthal TwinRing Rear Sprocket 50T Blue 1500-520-50GPBU
RENTHAL
$149.98RENTHAL Twinring™ Rear Sprocket 50-Tooth Blue 1500-520-50GPBU The RENTHAL Twinring™ Rear Sprocket combines advanced materials and engineering to deliver exceptional performance and durability for your motorcycle. Featuring a high-strength Ultralight™...12100819- SKU:
- 12100819
- Availability:
- Ships Same Business Day
- Weight:
- 1.60 LBS
- CHAIN SIZE:
- 520
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 50
- TYPE:
- DRIVE
- COLOR/FINISH:
- BLUE
- MATERIAL:
- 7075-T6 ALUMINUM
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
$149.98 -
Renthal Twinring Rear Sprocket 48T Red 520 Chain 1540-520-48GPRD
RENTHAL
$149.98RENTHAL Twinring™ Rear Sprocket 48-Tooth Red 1540-520-48GPRD The RENTHAL Twinring™ Rear Sprocket combines advanced materials and innovative design to deliver exceptional performance and durability for your motorcycle. Featuring a high-strength...12100820- SKU:
- 12100820
- Availability:
- Ships Same Business Day
- Weight:
- 1.70 LBS
- RIDING STYLE:
- OFF-ROAD
- TOOTH COUNT:
- 48
- TYPE:
- DRIVE
- UNITS:
- EACH
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- CHAIN SIZE:
- 520
- COLOR/FINISH:
- RED
- MATERIAL:
- 7075-T6 ALUMINUM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
$149.98 -
Renthal TwinRing Rear Sprocket 51T Red 520 Chain 1540-520-51GPRD
RENTHAL
$149.98RENTHAL Twinring™ Rear Sprocket 51-Tooth Red 1540-520-51GPRD The RENTHAL Twinring™ Rear Sprocket combines advanced materials and engineering to deliver exceptional performance and durability. Featuring a high-strength Ultralight™ 7075 T-6 aluminum inner...12100823- SKU:
- 12100823
- Availability:
- Ships Same Business Day
- Weight:
- 1.85 LBS
- MATERIAL:
- 7075-T6 ALUMINUM
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- DRIVE
- UNITS:
- EACH
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 51
- CHAIN SIZE:
- 520
- COLOR/FINISH:
- RED
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
$149.98 -
Renthal Twinring Rear Sprocket 50T Orange 2240-520-50GPOR
RENTHAL
$149.98RENTHAL Twinring™ Rear Sprocket 50-Tooth Orange 2240-520-50GPOR The RENTHAL Twinring™ Rear Sprocket combines advanced materials and innovative design to deliver exceptional performance and durability. Featuring a high-strength Ultralight™ 7075 T-6...12100984- SKU:
- 12100984
- Availability:
- Ships Same Business Day
- Weight:
- 1.65 LBS
- COLOR/FINISH:
- ORANGE
- MATERIAL:
- 7075-T6 ALUMINUM
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- DRIVE
- UNITS:
- EACH
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 50
- CHAIN SIZE:
- 520
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
$149.98 -
Renthal Twinring Rear Sprocket 52T Orange 2240-520-52GPOR
RENTHAL
$149.98RENTHAL Twinring™ Rear Sprocket 52-Tooth Orange 2240-520-52GPOR The RENTHAL Twinring™ Rear Sprocket combines advanced materials and engineering to deliver exceptional performance and durability. Featuring a high-strength Ultralight™ 7075 T-6 aluminum...12100985- SKU:
- 12100985
- Availability:
- Ships Same Business Day
- Weight:
- 1.90 LBS
- CHAIN SIZE:
- 520
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- MATERIAL:
- 7075-T6 ALUMINUM
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 52
- COLOR/FINISH:
- ORANGE
- RIDING STYLE:
- OFF-ROAD
- MOUNTING POSITION:
- REAR
- TYPE:
- DRIVE
$149.98 -
Renthal 46-Tooth Ultralight Rear Sprocket for Husqvarna TC85 17/14 and 19/16 Blue 441U-428-46GPBU
RENTHAL
$104.61RENTHAL Sprocket Husqvarna Blue 46-Tooth 441U-428-46GPBU Enhance your Husqvarna's performance with the RENTHAL 46-Tooth Rear Sprocket. Crafted from a specially enhanced 7075-T6 aluminum alloy, this sprocket offers exceptional durability while being 66%...12111722- SKU:
- 12111722
- Availability:
- Ships Same Business Day
- Weight:
- 0.70 LBS
- PRODUCT NAME:
- SPROCKET
- UNITS:
- EACH
- MATERIAL:
- 7075-T6 ALUMINUM
- MOUNTING POSITION:
- REAR
- TOOTH COUNT:
- 46
- TYPE:
- DRIVE
- CHAIN SIZE:
- 428
- COLOR/FINISH:
- BLUE
- RIDING STYLE:
- OFF-ROAD
$104.61 -
Renthal 47-Tooth Blue Rear Sprocket for Husqvarna TC85 441U-428-47GPBU
RENTHAL
$104.61RENTHAL Sprocket Husqvarna Blue 47-Tooth 441U-428-47GPBU Enhance your Husqvarna's performance with the RENTHAL 47-Tooth Rear Sprocket. Crafted from a specially enhanced 7075-T6 aluminum alloy, this sprocket offers exceptional durability while being 66%...12111723- SKU:
- 12111723
- Availability:
- Ships Same Business Day
- Weight:
- 0.80 LBS
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- CHAIN SIZE:
- 428
- COLOR/FINISH:
- BLUE
- TYPE:
- DRIVE
- MATERIAL:
- 7075-T6 ALUMINUM
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 47
$104.61 -
Renthal 50-Tooth Rear Sprocket for Honda CR80R CR85R CRF150R 189U-420-50GRSI
RENTHAL
$99.82RENTHAL Sprocket Honda 50-Tooth 189U-420-50GRSI Enhance your Honda's performance with the RENTHAL 50-Tooth Rear Sprocket, designed for durability and efficiency. Crafted from a specially enhanced 7075-T6 aluminum alloy, this sprocket offers a lightweight...R18950- SKU:
- R18950
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
- COLOR/FINISH:
- SILVER
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- DRIVE
- MATERIAL:
- 7075-T6 ALUMINUM
- MOUNTING POSITION:
- REAR
- CHAIN SIZE:
- 420
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 50
- UNITS:
- EACH
$99.82Qty in Cart: 0Quantity:Price:$99.82Subtotal: -
Renthal 45-Tooth Rear Sprocket for Kawasaki KX125 KX250 KX450 KDX200 KDX220R KDX250 KLX250 KLX300 KLX450R 112U-520-45GESI
RENTHAL
$99.82RENTHAL Sprocket Kawasaki 45-Tooth 112U-520-45GESI Enhance your Kawasaki's performance with the RENTHAL 45-Tooth Rear Sprocket, precision-engineered from 7075-T6 aluminum alloy. This ultralight sprocket is 66% lighter than steel counterparts, yet offers...R112B45- SKU:
- R112B45
- Availability:
- Ships Same Business Day
- Weight:
- 0.63 LBS
- CHAIN SIZE:
- 520
- RIDING STYLE:
- STREET
- TYPE:
- DRIVE
- COLOR/FINISH:
- SILVER
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- MATERIAL:
- 7075-T6 ALUMINUM
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 45
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
$99.82 -
Renthal 47-Tooth Rear Sprocket for Kawasaki KX250F 2004-2016 112U-520-47GESI
RENTHAL
$99.82RENTHAL Sprocket Kawasaki 47-Tooth 112U-520-47GESI Enhance your Kawasaki's performance with the RENTHAL 47-Tooth Rear Sprocket, precision-engineered from high-strength 7075-T6 aluminum alloy. This ultralight sprocket is 66% lighter than traditional steel...R112B47- SKU:
- R112B47
- Availability:
- Ships Same Business Day
- Weight:
- 0.69 LBS
- CHAIN SIZE:
- 520
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- STREET
- TOOTH COUNT:
- 47
- COLOR/FINISH:
- SILVER
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- UNITS:
- EACH
- TYPE:
- DRIVE
- MATERIAL:
- 7075-T6 ALUMINUM
- RIDING STYLE:
- OFF-ROAD
$99.82 -
Renthal 48-Tooth Rear Sprocket for Kawasaki KX and KLX Models 112U-520-48GESI
RENTHAL
$99.82RENTHAL Sprocket Kawasaki 48-Tooth 112U-520-48GESI Enhance your Kawasaki's performance with the RENTHAL 48-Tooth Rear Sprocket, precision-engineered from high-strength 7075-T6 aluminum alloy. This ultralight sprocket is approximately 66% lighter than...R112B48- SKU:
- R112B48
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
- CHAIN SIZE:
- 520
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- STREET
- TYPE:
- DRIVE
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 48
- COLOR/FINISH:
- SILVER
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- UNITS:
- EACH
- MATERIAL:
- 7075-T6 ALUMINUM
- RIDING STYLE:
- OFF-ROAD
$99.82 -
Renthal 49-Tooth Rear Sprocket for Kawasaki 520 Chain Models 112U-520-49GESI
RENTHAL
$99.82RENTHAL Sprocket Kawasaki 49-Tooth 112U-520-49GESI Enhance your Kawasaki motorcycle's performance with the RENTHAL 112U-520-49GESI rear sprocket. Crafted from CNC-machined 7075-T6 aluminum alloy, this sprocket offers a perfect balance of strength and...R112B49- SKU:
- R112B49
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 49
- UNITS:
- EACH
- CHAIN SIZE:
- 520
- RIDING STYLE:
- STREET
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- DRIVE
- COLOR/FINISH:
- SILVER
- MATERIAL:
- 7075-T6 ALUMINUM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
$99.82 -
Renthal 50-Tooth Rear Sprocket for Kawasaki 112U-520-50GESI
RENTHAL
$99.82RENTHAL Sprocket Kawasaki 50-Tooth 112U-520-50GESI Enhance your Kawasaki motorcycle's performance with the RENTHAL 50-Tooth Rear Sprocket. Crafted from a specially enhanced 7075-T6 aluminum alloy, this sprocket offers a perfect blend of strength and...R112B50- SKU:
- R112B50
- Availability:
- Ships Same Business Day
- Weight:
- 0.95 LBS
- MATERIAL:
- 7075-T6 ALUMINUM
- RIDING STYLE:
- OFF-ROAD
- TOOTH COUNT:
- 50
- TYPE:
- DRIVE
- COLOR/FINISH:
- SILVER
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- UNITS:
- EACH
- CHAIN SIZE:
- 520
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- STREET
$99.82 -
Renthal 47-Tooth Rear Sprocket for Suzuki RM80 RM85 RM85L and Yamaha YZ80 YZ85 YZ85LW 121U-428-47GPSI
RENTHAL
$99.82RENTHAL Sprocket Suzuki 47-Tooth 121U-428-47GPSI Enhance your Suzuki's performance with the RENTHAL 47-Tooth Rear Sprocket, precision-engineered from a specially enhanced 7075-T6 aluminum alloy. This ultralight sprocket is approximately 66% lighter than...R121A47- SKU:
- R121A47
- Availability:
- Ships Same Business Day
- Weight:
- 0.88 LBS
- CHAIN SIZE:
- 428
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- UNITS:
- EACH
- COLOR/FINISH:
- SILVER
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- DRIVE
- MATERIAL:
- 7075-T6 ALUMINUM
- TOOTH COUNT:
- 47
$99.82 -
Renthal Ultralight Rear Sprocket 47T 520 Chain Silver 123U-520-47GYSI
RENTHAL
$99.82RENTHAL Sprocket Suzuki 47-Tooth 123U-520-47GYSI Enhance your Suzuki's performance with the RENTHAL 47-Tooth Rear Sprocket, precision-engineered from high-grade 7075-T6 aluminum alloy. This ultralight sprocket is 66% lighter than traditional steel...R12347- SKU:
- R12347
- Availability:
- Ships Same Business Day
- Weight:
- 0.88 LBS
- COLOR/FINISH:
- SILVER
- MATERIAL:
- 7075-T6 ALUMINUM
- RIDING STYLE:
- OFF-ROAD
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- CHAIN SIZE:
- 520
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- UNITS:
- EACH
- TOOTH COUNT:
- 47
- TYPE:
- DRIVE
$99.82 -
Renthal Ultralight Rear Sprocket 48T Blue 441U-428-48GPBU
RENTHAL
$104.61RENTHAL Sprocket Husqvarna Blue 48-Tooth 441U-428-48GPBU Enhance your off-road performance with the RENTHAL 48-Tooth Rear Sprocket, designed specifically for Husqvarna motorcycles. Crafted from a specially enhanced 7075-T6 aluminum alloy, this sprocket...12111724- SKU:
- 12111724
- Availability:
- Ships Same Business Day
- Weight:
- 0.80 LBS
- CHAIN SIZE:
- 428
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- UNITS:
- EACH
- COLOR/FINISH:
- BLUE
- MATERIAL:
- 7075-T6 ALUMINUM
- RIDING STYLE:
- OFF-ROAD
- TOOTH COUNT:
- 48
- TYPE:
- DRIVE
$104.61Qty in Cart: 0Quantity:Price:$104.61Subtotal: -
Renthal 49-Tooth Blue Rear Sprocket for Husqvarna TC85 2014-2023 441U-428-49GPBU
RENTHAL
$104.61RENTHAL Sprocket Husqvarna Blue 49-Tooth 441U-428-49GPBU Enhance your Husqvarna's performance with the RENTHAL 49-Tooth Rear Sprocket. Crafted from a specially enhanced 7075-T6 aluminum alloy, this sprocket offers exceptional durability while being 66%...12111725- SKU:
- 12111725
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
- CHAIN SIZE:
- 428
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 49
- UNITS:
- EACH
- COLOR/FINISH:
- BLUE
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- DRIVE
- MATERIAL:
- 7075-T6 ALUMINUM
$104.61 -
Renthal Ultralight Rear Sprocket 50T Blue 428 Chain Husqvarna TC85 441U-428-50GPBU
RENTHAL
$104.61RENTHAL Sprocket Husqvarna Blue 50-Tooth 441U-428-50GPBU Enhance your Husqvarna's performance with the RENTHAL 50-Tooth Rear Sprocket, precision-engineered for durability and efficiency. Crafted from a specially enhanced 7075-T6 aluminum alloy, this...12111726- SKU:
- 12111726
- Availability:
- Ships Same Business Day
- Weight:
- 0.85 LBS
- MOUNTING POSITION:
- REAR
- TYPE:
- DRIVE
- CHAIN SIZE:
- 428
- UNITS:
- EACH
- COLOR/FINISH:
- BLUE
- MATERIAL:
- 7075-T6 ALUMINUM
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 50
$104.61
