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
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On Sale
SUPERSPROX Steel Rear Sprocket - 50-Tooth RFE-245-50-BLK
SUPERSPROX
MSRP: $49.95Now: $42.46Was: $49.95A worn or undersized rear sprocket tanks your acceleration and forces your engine to work harder than necessary. The SUPERSPROX 50-tooth steel sprocket delivers the durability and precision you need...12101893- SKU:
- 12101893
- Availability:
- Ships Same Business Day
- Weight:
- 2.00 LBS
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 50
- COLOR/FINISH:
- BLACK
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- REAR
- MOUNTING POSITION:
- REAR
- UNITS:
- EACH
MSRP: $49.95Now: $42.46Was: $49.95Qty in Cart: 0Quantity:Price:MSRP: $49.95Now: $42.46Was: $49.95Subtotal: -
MOOSE RACING Dual Sprocket MSE - Black - 51-Tooth 1210-897-51-10X
MOOSE RACING
$69.95A rear sprocket that keeps pace with your performance demands. The MOOSE RACING Dual Sprocket MSE combines the weight savings of aluminum with the durability of steel, delivering a lighter unsprung...12101523- SKU:
- 12101523
- Availability:
- Ships Same Business Day
- Weight:
- 1.80 LBS
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- DUAL
- MATERIAL:
- 7075-T6 ALUMINUM INNER RING
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 51
- UNITS:
- EACH
- CHAIN SIZE:
- 520
- MATERIAL:
- HEAVY-DUTY STEEL OUTER RING
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
$69.95Qty in Cart: 0Quantity:Price:$69.95Subtotal: -
MOOSE RACING Dual Sprocket MSE - Silver - 52-Tooth 1210-897-52-11X
MOOSE RACING
$69.95If you're running a rear sprocket that's either too heavy or wearing out prematurely, you're leaving performance on the table. The MOOSE RACING Dual Sprocket MSE combines the durability of steel with...12101527- SKU:
- 12101527
- Availability:
- Ships Same Business Day
- Weight:
- 1.95 LBS
- MATERIAL:
- HEAVY-DUTY STEEL OUTER RING
- MOUNTING POSITION:
- REAR
- CHAIN SIZE:
- 520
- MATERIAL:
- 7075-T6 ALUMINUM INNER RING
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- UNITS:
- EACH
- COLOR/FINISH:
- SILVER
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- DUAL
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 52
$69.95 -
On Sale
SUPERSPROX Steel Rear Sprocket - 52-Tooth RFE-210-52-BLK
SUPERSPROX
MSRP: $49.95Now: $42.46Was: $49.95A worn or undersized rear sprocket will compromise acceleration, top-end performance, and drivetrain efficiency across street and off-road applications. The SUPERSPROX 52-tooth steel sprocket...12101889- SKU:
- 12101889
- Availability:
- Ships Same Business Day
- Weight:
- 2.15 LBS
- TOOTH COUNT:
- 52
- PRODUCT NAME:
- SPROCKET
- UNITS:
- EACH
- COLOR/FINISH:
- BLACK
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- REAR
- CHAIN SIZE:
- 520
- MOUNTING POSITION:
- REAR
MSRP: $49.95Now: $42.46Was: $49.95Qty in Cart: 0Quantity:Price:MSRP: $49.95Now: $42.46Was: $49.95Subtotal: -
On Sale
SUPERSPROX Steel Rear Sprocket - 51-Tooth RFE-457-51-BLK
SUPERSPROX
MSRP: $39.95Now: $33.96Was: $39.95A rear sprocket is one of the highest-wear drivetrain components on any bike, and a worn or poorly manufactured unit will rob you of power delivery and acceleration. The SUPERSPROX Steel Rear...12101900- SKU:
- 12101900
- Availability:
- Ships Same Business Day
- Weight:
- 1.25 LBS
- UNITS:
- EACH
- COLOR/FINISH:
- BLACK
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- REAR
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 51
MSRP: $39.95Now: $33.96Was: $39.95 -
On Sale
SUPERSPROX Edge Rear Sprocket Insert - Orange RACD90544ORG
SUPERSPROX
MSRP: $10.95Now: $9.31Was: $10.95A worn or damaged rear sprocket compromises your bike's acceleration, top-end performance, and overall drivetrain efficiency. The SUPERSPROX Edge Rear Sprocket Insert replaces the stamped steel...12102374- SKU:
- 12102374
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- PRODUCT NAME:
- INSERT
- TYPE:
- EDGE REAR
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- ORANGE
- UNITS:
- EACH
MSRP: $10.95Now: $9.31Was: $10.95 -
On Sale
SUPERSPROX Edge Rear Sprocket - Black - 42-Tooth RFA130442BLK
SUPERSPROX
MSRP: $54.95Now: $46.71Was: $54.95The SUPERSPROX Edge Rear Sprocket delivers measurable weight savings without compromising durability, making it an ideal upgrade for riders seeking improved acceleration and reduced unsprung mass. At...12102375- SKU:
- 12102375
- Availability:
- Ships Same Business Day
- Weight:
- 1.80 LBS
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- LIGHTWEIGHT
- MATERIAL:
- STEEL
- TOOTH COUNT:
- 42
- UNITS:
- EACH
- COLOR/FINISH:
- BLACK
- COLOR/FINISH:
- ZINC
- MODEL:
- EDGE
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
MSRP: $54.95Now: $46.71Was: $54.95 -
On Sale
SUPERSPROX Edge Rear Sprocket - Black - 48-Tooth RFA130443BLK
SUPERSPROX
MSRP: $49.95Now: $42.46Was: $49.95Lightweight sprocket upgrades directly impact acceleration and reduce rotational mass—critical factors whether you're chasing lap times or optimizing street performance. The SUPERSPROX Edge 48-tooth...12102376- SKU:
- 12102376
- Availability:
- Ships Same Business Day
- Weight:
- 2.00 LBS
- MODEL:
- EDGE
- MOUNTING POSITION:
- REAR
- MATERIAL:
- STEEL
- PRODUCT NAME:
- SPROCKET
- COLOR/FINISH:
- BLACK
- COLOR/FINISH:
- ZINC
- TOOTH COUNT:
- 43
- UNITS:
- EACH
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- LIGHTWEIGHT
MSRP: $49.95Now: $42.46Was: $49.95Qty in Cart: 0Quantity:Price:MSRP: $49.95Now: $42.46Was: $49.95Subtotal: -
On Sale
SUPERSPROX Edge Rear Sprocket - Black - 42-Tooth RFA130642BLK
SUPERSPROX
MSRP: $54.95Now: $46.71Was: $54.95If you're looking to trim rotational mass without breaking the bank, the SUPERSPROX Edge Rear Sprocket delivers measurable weight savings that improve acceleration and reduce drivetrain strain. At 42...12102378- SKU:
- 12102378
- Availability:
- Ships Same Business Day
- Weight:
- 1.95 LBS
- MODEL:
- EDGE
- UNITS:
- EACH
- COLOR/FINISH:
- BLACK
- COLOR/FINISH:
- ZINC
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- LIGHTWEIGHT
- TOOTH COUNT:
- 42
MSRP: $54.95Now: $46.71Was: $54.95Qty in Cart: 0Quantity:Price:MSRP: $54.95Now: $46.71Was: $54.95Subtotal: -
On Sale
SUPERSPROX Edge Rear Sprocket - Black - 42-Tooth RFA179242BLK
SUPERSPROX
MSRP: $49.95Now: $42.46Was: $49.95If you're running a mid-range bike and want meaningful weight reduction without breaking the bank, the SUPERSPROX Edge Rear Sprocket delivers exactly that. At 5%-15% lighter than stock depending on...12102381- SKU:
- 12102381
- Availability:
- Ships Same Business Day
- Weight:
- 1.90 LBS
- MATERIAL:
- STEEL
- TOOTH COUNT:
- 42
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- COLOR/FINISH:
- BLACK
- COLOR/FINISH:
- ZINC
- STYLE:
- LIGHTWEIGHT
- MODEL:
- EDGE
- RIDING STYLE:
- STREET
- UNITS:
- EACH
MSRP: $49.95Now: $42.46Was: $49.95 -
On Sale
SUPERSPROX Edge Rear Sprocket - Black - 43-Tooth RFA179243BLK
SUPERSPROX
MSRP: $49.95Now: $42.46Was: $49.95If you're running a 43-tooth rear sprocket, choosing the right component matters—weight savings directly translate to quicker acceleration and improved throttle response. The SUPERSPROX Edge delivers...12102382- SKU:
- 12102382
- Availability:
- Ships Same Business Day
- Weight:
- 1.90 LBS
- MODEL:
- EDGE
- RIDING STYLE:
- STREET
- TOOTH COUNT:
- 43
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- UNITS:
- EACH
- COLOR/FINISH:
- BLACK
- COLOR/FINISH:
- ZINC
- MATERIAL:
- STEEL
- STYLE:
- LIGHTWEIGHT
MSRP: $49.95Now: $42.46Was: $49.95 -
On Sale
SUPERSPROX Edge Rear Sprocket - Black - 45-Tooth RFA179245BLK
SUPERSPROX
MSRP: $54.95Now: $46.71Was: $54.95Sprocket wear is one of the most overlooked maintenance items that directly impacts chain longevity and power delivery. The SUPERSPROX Edge Rear Sprocket delivers a measurable weight reduction—5% to...12102383- SKU:
- 12102383
- Availability:
- Ships Same Business Day
- Weight:
- 2.05 LBS
- MATERIAL:
- STEEL
- STYLE:
- LIGHTWEIGHT
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 45
- UNITS:
- EACH
- COLOR/FINISH:
- BLACK
- COLOR/FINISH:
- ZINC
- MODEL:
- EDGE
- RIDING STYLE:
- STREET
MSRP: $54.95Now: $46.71Was: $54.95 -
On Sale
SUPERSPROX Edge Rear Sprocket - Black - 46-Tooth RFA245346BLK
SUPERSPROX
MSRP: $49.95Now: $42.46Was: $49.95Upgrading to the SUPERSPROX Edge Rear Sprocket puts you in control of your bike's acceleration and top-end performance without the weight penalty of heavier OEM components. At 5-15% lighter than...12102384- SKU:
- 12102384
- Availability:
- Ships Same Business Day
- Weight:
- 1.95 LBS
- MODEL:
- EDGE
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 46
- MATERIAL:
- STEEL
- UNITS:
- EACH
- COLOR/FINISH:
- BLACK
- COLOR/FINISH:
- ZINC
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- LIGHTWEIGHT
MSRP: $49.95Now: $42.46Was: $49.95 -
On Sale
SUPERSPROX Edge Rear Sprocket - Black - 42-Tooth RFA30242BLK
SUPERSPROX
MSRP: $54.95Now: $46.71Was: $54.95If you're running a mid-range bike and want to shed unnecessary rotational mass without breaking the bank, the SUPERSPROX Edge Rear Sprocket delivers real weight savings that translate to quicker...12102385- SKU:
- 12102385
- Availability:
- Ships Same Business Day
- Weight:
- 2.15 LBS
- COLOR/FINISH:
- BLACK
- STYLE:
- LIGHTWEIGHT
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- TOOTH COUNT:
- 42
- UNITS:
- EACH
- COLOR/FINISH:
- ZINC
- MODEL:
- EDGE
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
MSRP: $54.95Now: $46.71Was: $54.95Qty in Cart: 0Quantity:Price:MSRP: $54.95Now: $46.71Was: $54.95Subtotal: -
On Sale
SUPERSPROX Edge Rear Sprocket - Black - 43-Tooth RFA48643BLK
SUPERSPROX
MSRP: $49.95Now: $42.46Was: $49.95A lightweight rear sprocket is one of the most effective upgrades for improving acceleration and reducing unsprung weight on your bike. The SUPERSPROX Edge delivers measurable performance gains...12102393- SKU:
- 12102393
- Availability:
- Ships Same Business Day
- Weight:
- 1.70 LBS
- COLOR/FINISH:
- BLACK
- STYLE:
- LIGHTWEIGHT
- COLOR/FINISH:
- ZINC
- TOOTH COUNT:
- 43
- MATERIAL:
- STEEL
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- MODEL:
- EDGE
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- STREET
MSRP: $49.95Now: $42.46Was: $49.95 -
On Sale
SUPERSPROX Edge Rear Sprocket - Black - 47-Tooth RFA82947BLK
SUPERSPROX
MSRP: $54.95Now: $46.71Was: $54.95If you're running mid-range performance builds or looking to trim rotating mass without breaking the bank, the SUPERSPROX Edge 47-Tooth Rear Sprocket delivers measurable weight savings that translate...12102396- SKU:
- 12102396
- Availability:
- Ships Same Business Day
- Weight:
- 2.60 LBS
- COLOR/FINISH:
- ZINC
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 47
- MODEL:
- EDGE
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- LIGHTWEIGHT
- UNITS:
- EACH
- COLOR/FINISH:
- BLACK
MSRP: $54.95Now: $46.71Was: $54.95Qty in Cart: 0Quantity:Price:MSRP: $54.95Now: $46.71Was: $54.95Subtotal: -
On Sale
SUPERSPROX Edge Rear Sprocket - Black - 38-Tooth RFA846238BLK
SUPERSPROX
MSRP: $49.95Now: $42.46Was: $49.95If you're running a mid-range bike and looking to shed unsprung weight without breaking the bank, the SUPERSPROX Edge Rear Sprocket delivers measurable gains in acceleration and handling response. By...12102397- SKU:
- 12102397
- Availability:
- Ships Same Business Day
- Weight:
- 1.45 LBS
- UNITS:
- EACH
- MODEL:
- EDGE
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- BLACK
- STYLE:
- LIGHTWEIGHT
- TOOTH COUNT:
- 38
- COLOR/FINISH:
- ZINC
- MATERIAL:
- STEEL
MSRP: $49.95Now: $42.46Was: $49.95Qty in Cart: 0Quantity:Price:MSRP: $49.95Now: $42.46Was: $49.95Subtotal: -
On Sale
SUPERSPROX Edge Rear Sprocket - Black - 44-Tooth RFA90544BLK
SUPERSPROX
MSRP: $49.95Now: $42.46Was: $49.95A lightweight rear sprocket is one of the most cost-effective upgrades for improving acceleration and reducing unsprung weight on mid-range bikes. The SUPERSPROX Edge reduces rotational mass by...12102399- SKU:
- 12102399
- Availability:
- Ships Same Business Day
- Weight:
- 2.00 LBS
- MODEL:
- EDGE
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 44
- UNITS:
- EACH
- COLOR/FINISH:
- BLACK
- COLOR/FINISH:
- ZINC
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- LIGHTWEIGHT
MSRP: $49.95Now: $42.46Was: $49.95 -
On Sale
SUPERSPROX Steel Rear Sprocket - 44-Tooth RFE-808-44-BLK
SUPERSPROX
MSRP: $49.95Now: $42.46Was: $49.95A rear sprocket is fundamental to your drivetrain's efficiency and longevity. The SUPERSPROX 44-tooth steel sprocket delivers race-proven durability with measurable gains in chain wear reduction and...12101919- SKU:
- 12101919
- Availability:
- Ships Same Business Day
- Weight:
- 1.30 LBS
- PRODUCT NAME:
- SPROCKET
- UNITS:
- EACH
- MATERIAL:
- STEEL
- TOOTH COUNT:
- 44
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- REAR
- CHAIN SIZE:
- 520
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- STREET
MSRP: $49.95Now: $42.46Was: $49.95Qty in Cart: 0Quantity:Price:MSRP: $49.95Now: $42.46Was: $49.95Subtotal: -
On Sale
SUPERSPROX Steel Rear Sprocket - 47-Tooth RFE-808-47-BLK
SUPERSPROX
MSRP: $49.95Now: $42.46Was: $49.95A quality rear sprocket directly impacts your chain drive efficiency, acceleration response, and overall drivetrain longevity. The SUPERSPROX 47-Tooth Steel Rear Sprocket delivers race-proven...12101920- SKU:
- 12101920
- Availability:
- Ships Same Business Day
- Weight:
- 2.10 LBS
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 47
- UNITS:
- EACH
- COLOR/FINISH:
- BLACK
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- REAR
- CHAIN SIZE:
- 520
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- STREET
MSRP: $49.95Now: $42.46Was: $49.95
