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 49T Silver 2240-520-49GPSI
RENTHAL
$142.50The RENTHAL Twinring™ Rear Sprocket combines advanced materials and engineering to deliver exceptional performance and longevity. Featuring a high-strength Ultralight™ 7075 T-6 aluminum inner ring and an electro-less nickel-coated steel outer ring, this...12100252- SKU:
- 12100252
- Availability:
- Ships Same Business Day
- Weight:
- 1.70 LBS
- MOUNTING POSITION:
- REAR
- 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
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 49
$142.50 -
Renthal TwinRing Rear Sprocket 51T Silver 520 Chain 2240-520-51GPSI
RENTHAL
$142.50The 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 reduced weight. Designed with self-cleaning mud grooves and...12100254- SKU:
- 12100254
- Availability:
- Ships Same Business Day
- Weight:
- 1.85 LBS
- CHAIN SIZE:
- 520
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- TYPE:
- DRIVE
- COLOR/FINISH:
- SILVER
- MATERIAL:
- 7075-T6 ALUMINUM
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 51
- UNITS:
- EACH
$142.50 -
Renthal Twinring 50-Tooth Rear Sprocket Black 1230-520-50GPBK
RENTHAL
$142.50The 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 ring and an electro-less nickel-coated steel outer ring, this...12100808- SKU:
- 12100808
- Availability:
- Ships Same Business Day
- Weight:
- 1.60 LBS
- CHAIN SIZE:
- 520
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 50
- COLOR/FINISH:
- BLACK
- MATERIAL:
- 7075-T6 ALUMINUM
- RIDING STYLE:
- OFF-ROAD
- MOUNTING POSITION:
- REAR
- TYPE:
- DRIVE
- UNITS:
- EACH
$142.50 -
Renthal TwinRing Rear Sprocket 50T Black 1500-520-50GPBK
RENTHAL
$142.50The 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 ring and an electro-less nickel-coated steel outer ring, this...12100810- SKU:
- 12100810
- Availability:
- Ships Same Business Day
- Weight:
- 1.80 LBS
- CHAIN SIZE:
- 520
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 50
- MOUNTING POSITION:
- REAR
- TYPE:
- DRIVE
- UNITS:
- EACH
- COLOR/FINISH:
- BLACK
- MATERIAL:
- 7075-T6 ALUMINUM
- RIDING STYLE:
- OFF-ROAD
$142.50 -
Renthal TwinRing Rear Sprocket 48T Black 520 Pitch 1540-520-48GPBK
RENTHAL
$142.50The 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 ring and an electro-less nickel-coated steel outer ring, this...12100811- SKU:
- 12100811
- Availability:
- Ships Same Business Day
- Weight:
- 1.70 LBS
- TOOTH COUNT:
- 48
- TYPE:
- DRIVE
- CHAIN SIZE:
- 520
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- SPROCKET
- UNITS:
- EACH
- COLOR/FINISH:
- BLACK
- MATERIAL:
- 7075-T6 ALUMINUM
- RIDING STYLE:
- OFF-ROAD
$142.50 -
Renthal TwinRing Rear Sprocket 49T Black 520 Chain 1540-520-49GPBK
RENTHAL
$142.50The 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 reduced weight. Designed for off-road enthusiasts, this...12100812- SKU:
- 12100812
- Availability:
- Ships Same Business Day
- Weight:
- 1.81 LBS
- CHAIN SIZE:
- 520
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 49
- TYPE:
- DRIVE
- UNITS:
- EACH
- COLOR/FINISH:
- BLACK
- MATERIAL:
- 7075-T6 ALUMINUM
- RIDING STYLE:
- OFF-ROAD
$142.50 -
Renthal Twinring Rear Sprocket 50T Black 1540-520-50GPBK
RENTHAL
$142.50The 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 ring and an electro-less nickel-coated steel outer ring, this...12100813- SKU:
- 12100813
- Availability:
- Ships Same Business Day
- Weight:
- 1.80 LBS
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- DRIVE
- UNITS:
- EACH
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 50
- CHAIN SIZE:
- 520
- MATERIAL:
- 7075-T6 ALUMINUM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
$142.50 -
Renthal TwinRing Rear Sprocket 51T Black 1540-520-51GPBK
RENTHAL
$142.50The 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 reduced weight. This innovative design ensures a permanent bond...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
$142.50The RENTHAL Twinring™ Rear Sprocket combines advanced materials and engineering to deliver exceptional performance and durability for off-road enthusiasts. Featuring a high-strength Ultralight™ 7075 T-6 aluminum inner ring and an electro-less...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
$149.98The RENTHAL Twinring™ Rear Sprocket combines advanced materials and engineering to deliver exceptional performance and durability for your motorcycle. Featuring a high-strength Ultralight™ 7075 T-6 aluminum inner ring and an electro-less nickel-coated...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
$149.98The RENTHAL Twinring™ Rear Sprocket combines advanced materials and innovative design to deliver exceptional performance and durability for your motorcycle. Featuring a high-strength Ultralight™ 7075 T-6 aluminum inner ring and an electro-less...12100820- SKU:
- 12100820
- Availability:
- Ships Same Business Day
- Weight:
- 1.71 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
$149.98The 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 ring and an electro-less nickel-coated steel outer ring, this...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
$149.98Qty in Cart: 0Quantity:Price:$149.98Subtotal: -
Renthal Twinring Rear Sprocket 50T Orange 2240-520-50GPOR
RENTHAL
$149.98The RENTHAL Twinring™ Rear Sprocket combines advanced materials and innovative design to deliver exceptional performance and durability. Featuring a high-strength Ultralight™ 7075 T-6 aluminum inner ring and an electro-less nickel-coated steel outer...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
$149.98The 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 ring and an electro-less nickel-coated steel outer ring, this...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
$104.61Enhance 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% lighter than traditional steel options. Its precision...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
$104.61Qty in Cart: 0Quantity:Price:$104.61Subtotal: -
Renthal 47-Tooth Blue Rear Sprocket for Husqvarna TC85 441U-428-47GPBU
RENTHAL
$104.61Enhance 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% lighter than traditional steel options. Its precision...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 45-Tooth Rear Sprocket for Kawasaki KX125 KX250 KX450 KDX200 KDX220R KDX250 KLX250 KLX300 KLX450R 112U-520-45GESI
RENTHAL
$99.82Enhance 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 exceptional durability. Its self-cleaning mud...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
$99.82Enhance 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 options, reducing unsprung weight and improving...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
$99.82Enhance 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 traditional steel options, reducing unsprung weight...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
$99.82Enhance 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 weight savings, making it an excellent choice for...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
$99.82Qty in Cart: 0Quantity:Price:$99.82Subtotal:
