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
-
SUPERSPROX Rear Sprocket - Black - Kawasaki - 50-Tooth RAL-460-50-BLK
SUPERSPROX
$69.95SUPERSPROX Rear Sprocket Black Kawasaki 50-Tooth RAL-460-50-BLKMade from 7075-T6 aluminum for high strength, Fully CNC machined for a perfect fit, Grooved teeth prevent dirt build up, helping to maximize sprocket and chain life, Finished with durable...12111945- SKU:
- 12111945
- Availability:
- Ships Same Business Day
- Weight:
- 1.15 LBS
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 50
- UNITS:
- EACH
- MATERIAL:
- 7075-T6 ALUMINUM
- MODEL:
- ALUMINUM
- CHAIN SIZE:
- 520
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- STREET
- RIDING STYLE:
- OFF-ROAD
$69.95Qty in Cart: 0Quantity:Price:$69.95Subtotal: -
SUPERSPROX Rear Sprocket - Black - Kawasaki - 51-Tooth RAL-460-51-BLK
SUPERSPROX
$69.95SUPERSPROX Rear Sprocket Black Kawasaki 51-Tooth RAL-460-51-BLKMade from 7075-T6 aluminum for high strength, Fully CNC machined for a perfect fit, Grooved teeth prevent dirt build up, helping to maximize sprocket and chain life, Finished with durable...12111946- SKU:
- 12111946
- Availability:
- Ships Same Business Day
- Weight:
- 1.15 LBS
- PRODUCT NAME:
- SPROCKET
- UNITS:
- EACH
- RIDING STYLE:
- OFF-ROAD
- CHAIN SIZE:
- 520
- COLOR/FINISH:
- BLACK
- MODEL:
- ALUMINUM
- RIDING STYLE:
- STREET
- MATERIAL:
- 7075-T6 ALUMINUM
- MOUNTING POSITION:
- REAR
- TOOTH COUNT:
- 51
$69.95Qty in Cart: 0Quantity:Price:$69.95Subtotal: -
SUPERSPROX Rear Sprocket - Black - Kawasaki - 48-Tooth RAL-808-48-BLK
SUPERSPROX
$69.95SUPERSPROX Rear Sprocket Black Kawasaki 48-Tooth RAL-808-48-BLKMade from 7075-T6 aluminum for high strength, Fully CNC machined for a perfect fit, Grooved teeth prevent dirt build up, helping to maximize sprocket and chain life, Finished with durable...12111948- SKU:
- 12111948
- Availability:
- Ships Same Business Day
- Weight:
- 1.15 LBS
- CHAIN SIZE:
- 520
- COLOR/FINISH:
- BLACK
- MATERIAL:
- 7075-T6 ALUMINUM
- RIDING STYLE:
- STREET
- MODEL:
- ALUMINUM
- UNITS:
- EACH
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- OFF-ROAD
- TOOTH COUNT:
- 48
$69.95Qty in Cart: 0Quantity:Price:$69.95Subtotal: -
SUPERSPROX Rear Sprocket - Black - Kawasaki - 49-Tooth RAL-808-49-BLK
SUPERSPROX
$69.95SUPERSPROX Rear Sprocket Black Kawasaki 49-Tooth RAL-808-49-BLKMade from 7075-T6 aluminum for high strength, Fully CNC machined for a perfect fit, Grooved teeth prevent dirt build up, helping to maximize sprocket and chain life, Finished with durable...12111949- SKU:
- 12111949
- Availability:
- Ships Same Business Day
- Weight:
- 1.15 LBS
- MATERIAL:
- 7075-T6 ALUMINUM
- RIDING STYLE:
- OFF-ROAD
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 49
- MODEL:
- ALUMINUM
- CHAIN SIZE:
- 520
- COLOR/FINISH:
- BLACK
- UNITS:
- EACH
$69.95 -
SUPERSPROX Rear Sprocket - Black - Kawasaki - 50-Tooth RAL-808-50-BLK
SUPERSPROX
$69.95SUPERSPROX Rear Sprocket Black Kawasaki 50-Tooth RAL-808-50-BLKMade from 7075-T6 aluminum for high strength, Fully CNC machined for a perfect fit, Grooved teeth prevent dirt build up, helping to maximize sprocket and chain life, Finished with durable...12111950- SKU:
- 12111950
- Availability:
- Ships Same Business Day
- Weight:
- 1.20 LBS
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 50
- CHAIN SIZE:
- 520
- MODEL:
- ALUMINUM
- UNITS:
- EACH
- COLOR/FINISH:
- BLACK
- MATERIAL:
- 7075-T6 ALUMINUM
- RIDING STYLE:
- STREET
- RIDING STYLE:
- OFF-ROAD
$69.95Qty in Cart: 0Quantity:Price:$69.95Subtotal: -
SUPERSPROX Rear Sprocket - Orange - KTM/Husqvarna - 48-Tooth RAL-990-48-ORG
SUPERSPROX
$69.95SUPERSPROX Rear Sprocket Orange KTM/Husqvarna 48-Tooth RAL-990-48-ORGMade from 7075-T6 aluminum for high strength, Fully CNC machined for a perfect fit, Grooved teeth prevent dirt build up, helping to maximize sprocket and chain life, Finished with...12111954- SKU:
- 12111954
- Availability:
- Ships Same Business Day
- Weight:
- 1.15 LBS
- COLOR/FINISH:
- ORANGE
- RIDING STYLE:
- OFF-ROAD
- TOOTH COUNT:
- 48
- UNITS:
- EACH
- MATERIAL:
- 7075-T6 ALUMINUM
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- MODEL:
- ALUMINUM
- CHAIN SIZE:
- 520
- RIDING STYLE:
- STREET
$69.95 -
SUPERSPROX Rear Sprocket - Orange - KTM/Husqvarna - 49-Tooth RAL-990-49-ORG
SUPERSPROX
$69.95SUPERSPROX Rear Sprocket Orange KTM/Husqvarna 49-Tooth RAL-990-49-ORGMade from 7075-T6 aluminum for high strength, Fully CNC machined for a perfect fit, Grooved teeth prevent dirt build up, helping to maximize sprocket and chain life, Finished with...12111955- SKU:
- 12111955
- Availability:
- Ships Same Business Day
- Weight:
- 1.05 LBS
- MATERIAL:
- 7075-T6 ALUMINUM
- CHAIN SIZE:
- 520
- COLOR/FINISH:
- ORANGE
- MODEL:
- ALUMINUM
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 49
- RIDING STYLE:
- OFF-ROAD
$69.95Qty in Cart: 0Quantity:Price:$69.95Subtotal: -
SUPERSPROX Rear Sprocket - Black - Suzuki - 47-Tooth RAL-998-47-BLK
SUPERSPROX
$64.95SUPERSPROX Rear Sprocket Black Suzuki 47-Tooth RAL-998-47-BLKMade from 7075-T6 aluminum for high strength, Fully CNC machined for a perfect fit, Grooved teeth prevent dirt build up, helping to maximize sprocket and chain life, Finished with durable...12111961- SKU:
- 12111961
- Availability:
- Ships Same Business Day
- Weight:
- 0.95 LBS
- COLOR/FINISH:
- BLACK
- MODEL:
- ALUMINUM
- CHAIN SIZE:
- 420
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- MATERIAL:
- 7075-T6 ALUMINUM
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 47
$64.95 -
SUPERSPROX Rear Sprocket - Black - Kawasaki - 51-Tooth RAL-457-51-BLK
SUPERSPROX
$64.95SUPERSPROX Rear Sprocket Black Kawasaki 51-Tooth RAL-457-51-BLKMade from 7075-T6 aluminum for high strength, Fully CNC machined for a perfect fit, Grooved teeth prevent dirt build up, helping to maximize sprocket and chain life, Finished with durable...12112059- SKU:
- 12112059
- Availability:
- Ships Same Business Day
- Weight:
- 0.85 LBS
- COLOR/FINISH:
- BLACK
- UNITS:
- EACH
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- OFF-ROAD
- TOOTH COUNT:
- 51
- CHAIN SIZE:
- 420
- MATERIAL:
- 7075-T6 ALUMINUM
- MODEL:
- ALUMINUM
- MOUNTING POSITION:
- REAR
$64.95Qty in Cart: 0Quantity:Price:$64.95Subtotal: -
Renthal TwinRing Rear Sprocket 48T Silver 520 Chain 1540-520-48GPSI
RENTHAL
$142.50RENTHAL Twinring™ Rear Sprocket 48-Tooth Silver 1540-520-48GPSI 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...12100231- SKU:
- 12100231
- Availability:
- Ships Same Business Day
- Weight:
- 1.70 LBS
- COLOR/FINISH:
- SILVER
- RIDING STYLE:
- OFF-ROAD
- 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
- MATERIAL:
- 7075-T6 ALUMINUM
$142.50 -
Renthal Twinring Rear Sprocket 49T Silver 520 Chain 1540-520-49GPSI
RENTHAL
$142.50RENTHAL Twinring™ Rear Sprocket 49-Tooth Silver 1540-520-49GPSI 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...12100232- SKU:
- 12100232
- Availability:
- Ships Same Business Day
- Weight:
- 1.75 LBS
- MOUNTING POSITION:
- REAR
- COLOR/FINISH:
- SILVER
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- DRIVE
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 49
- UNITS:
- EACH
- CHAIN SIZE:
- 520
- MATERIAL:
- 7075-T6 ALUMINUM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
$142.50 -
Renthal TwinRing Rear Sprocket 52T Silver 1540-520-52GPSI
RENTHAL
$142.50RENTHAL Twinring™ Rear Sprocket 52-Tooth Silver 1540-520-52GPSI 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...12100235- SKU:
- 12100235
- Availability:
- Ships Same Business Day
- Weight:
- 1.70 LBS
- COLOR/FINISH:
- SILVER
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- MATERIAL:
- 7075-T6 ALUMINUM
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 52
- CHAIN SIZE:
- 520
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- TYPE:
- DRIVE
$142.50 -
Renthal TwinRing Rear Sprocket 51T Silver 1500-520-51GPSI
RENTHAL
$142.50RENTHAL Twinring™ Rear Sprocket 51-Tooth Silver 1500-520-51GPSI 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...12100239- SKU:
- 12100239
- Availability:
- Ships Same Business Day
- Weight:
- 1.80 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 Rear Sprocket 49T Silver 2240-520-49GPSI
RENTHAL
$142.50RENTHAL Twinring™ Rear Sprocket 49-Tooth Silver 2240-520-49GPSI The RENTHAL Twinring™ Rear Sprocket combines advanced materials and engineering to deliver exceptional performance and longevity. Featuring a high-strength Ultralight™ 7075 T-6 aluminum...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
$142.50RENTHAL Twinring™ Rear Sprocket 51-Tooth Silver 2240-520-51GPSI 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...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
$142.50RENTHAL Twinring™ Rear Sprocket 50-Tooth Black 1230-520-50GPBK 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...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
$142.50RENTHAL Twinring™ Rear Sprocket 50-Tooth Black 1500-520-50GPBK 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...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
$142.50RENTHAL Twinring™ Rear Sprocket 48-Tooth Black 1540-520-48GPBK 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...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
$142.50RENTHAL Twinring™ Rear Sprocket 49-Tooth Black 1540-520-49GPBK 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...12100812- SKU:
- 12100812
- Availability:
- Ships Same Business Day
- Weight:
- 1.80 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
$142.50RENTHAL Twinring™ Rear Sprocket 50-Tooth Black 1540-520-50GPBK 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...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
