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 Steel Rear Sprocket - 47-Tooth RFE-808-47-BLK
SUPERSPROX
$59.95A 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 durability without sacrificing weight, making it an ideal...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
$59.95 -
SUPERSPROX Steel Rear Sprocket - 50-Tooth RFE-808-50-BLK
SUPERSPROX
$59.95A rear sprocket directly impacts your power delivery, acceleration, and overall drivetrain efficiency—making it one of the most critical components you can upgrade. The SUPERSPROX Steel Rear Sprocket delivers race-proven durability without the weight...12101923- SKU:
- 12101923
- Availability:
- Ships Same Business Day
- Weight:
- 1.85 LBS
- MATERIAL:
- STEEL
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 50
- CHAIN SIZE:
- 520
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- REAR
- UNITS:
- EACH
$59.95 -
SUPERSPROX Steel Rear Sprocket - 52-Tooth RFE-808-52-BLK
SUPERSPROX
$69.95A worn or mismatched rear sprocket directly impacts your bike's acceleration, top-end speed, and drivetrain efficiency. The SUPERSPROX 52-tooth steel sprocket is engineered for both street and off-road riders who demand long-term reliability without...12101924- SKU:
- 12101924
- Availability:
- Ships Same Business Day
- Weight:
- 2.45 LBS
- COLOR/FINISH:
- BLACK
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- REAR
- UNITS:
- EACH
- CHAIN SIZE:
- 520
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 52
$69.95Qty in Cart: 0Quantity:Price:$69.95Subtotal: -
SUPERSPROX Steel Rear Sprocket - 41-Tooth RFE-853-41-BLK
SUPERSPROX
$44.95A rear sprocket is one of the highest-wear components on any bike—constant engagement with your chain means durability directly impacts performance and longevity. The SUPERSPROX 41-Tooth Steel Rear Sprocket delivers race-proven durability with a weight...12101933- SKU:
- 12101933
- Availability:
- Ships Same Business Day
- Weight:
- 1.25 LBS
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- ATV
- COLOR/FINISH:
- BLACK
- MATERIAL:
- STEEL
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- OFF-ROAD
- TOOTH COUNT:
- 41
- TYPE:
- REAR
- UNITS:
- EACH
$44.95 -
SUPERSPROX Steel Rear Sprocket - 38-Tooth RFE-857-38-BLK
SUPERSPROX
$54.95A worn or mismatched rear sprocket directly impacts your power delivery, acceleration response, and drivetrain longevity. The SUPERSPROX Steel Rear Sprocket delivers race-proven durability without sacrificing weight, keeping your system efficient whether...12101935- SKU:
- 12101935
- Availability:
- Ships Same Business Day
- Weight:
- 1.40 LBS
- MOUNTING POSITION:
- REAR
- TOOTH COUNT:
- 38
- PRODUCT NAME:
- SPROCKET
- UNITS:
- EACH
- COLOR/FINISH:
- BLACK
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- REAR
$54.95 -
SUPERSPROX Steel Rear Sprocket - 42-Tooth RFE-899-42-BLK
SUPERSPROX
$49.95A worn or undersized rear sprocket limits acceleration and top-end performance, forcing your engine to work harder while reducing chain life. The SUPERSPROX 42-tooth steel sprocket delivers race-proven durability with a lighter overall weight, giving you...12101936- SKU:
- 12101936
- Availability:
- Ships Same Business Day
- Weight:
- 1.70 LBS
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- TOOTH COUNT:
- 42
- TYPE:
- REAR
- MATERIAL:
- STEEL
- PRODUCT NAME:
- SPROCKET
- UNITS:
- EACH
- MOUNTING POSITION:
- REAR
$49.95 -
SUPERSPROX Stealth Rear Sprocket - 53-Tooth - Gold - Honda RST-210-53-GLD
SUPERSPROX
$119.95Rear sprocket durability directly impacts your bike's acceleration, top-end performance, and maintenance intervals. The SUPERSPROX Stealth combines a lightweight aluminum core with hardened steel teeth—delivering four times the wear life of aluminum-only...12101973- SKU:
- 12101973
- Availability:
- Ships Same Business Day
- Weight:
- 2.00 LBS
- COLOR/FINISH:
- STEALTH
- PRODUCT NAME:
- SPROCKET
- COLOR/FINISH:
- GOLD
- MATERIAL:
- STEEL
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- OFF-ROAD
- TOOTH COUNT:
- 53
- TYPE:
- REAR
- MATERIAL:
- ALUMINUM
- MOUNTING POSITION:
- REAR
- CHAIN SIZE:
- 520
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$119.95 -
SUPERSPROX Stealth Rear Sprocket - 50-Tooth - Red - Honda RST-210-50-RED
SUPERSPROX
$119.95If you're running a high-displacement Honda and want sprocket durability without the weight penalty, the SUPERSPROX Stealth Rear Sprocket delivers steel-tooth longevity in a lightweight aluminum core package. You'll get four times the tooth life compared...12101976- SKU:
- 12101976
- Availability:
- Ships Same Business Day
- Weight:
- 1.85 LBS
- COLOR/FINISH:
- RED
- MATERIAL:
- STEEL
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- REAR
- UNITS:
- EACH
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 50
- CHAIN SIZE:
- 520
- COLOR/FINISH:
- STEALTH
- MATERIAL:
- ALUMINUM
- RIDING STYLE:
- STREET
- MOUNTING POSITION:
- REAR
$119.95Qty in Cart: 0Quantity:Price:$119.95Subtotal: -
SUPERSPROX Stealth Rear Sprocket - 51-Tooth - Red - Honda RST-210-51-RED
SUPERSPROX
$119.95If you're running a high-displacement Honda and want sprocket longevity without the weight penalty, the SUPERSPROX Stealth delivers. Steel teeth that last 4x longer than aluminum mean fewer mid-season replacements and more time on the track. The hybrid...12101977- SKU:
- 12101977
- Availability:
- Ships Same Business Day
- Weight:
- 2.00 LBS
- CHAIN SIZE:
- 520
- MATERIAL:
- ALUMINUM
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 51
- UNITS:
- EACH
- COLOR/FINISH:
- RED
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- STEALTH
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- REAR
$119.95Qty in Cart: 0Quantity:Price:$119.95Subtotal: -
SUPERSPROX Stealth Rear Sprocket - 47-Tooth - Gold - Yamaha RST-245-47-GLD
SUPERSPROX
$119.95If you're running a high-displacement Yamaha and want sprocket longevity without the weight penalty, the SUPERSPROX Stealth delivers steel-tooth durability in an aluminum-core package. You get four times the wear life of aluminum teeth while keeping your...12101979- SKU:
- 12101979
- Availability:
- Ships Same Business Day
- Weight:
- 1.75 LBS
- CHAIN SIZE:
- 520
- MATERIAL:
- ALUMINUM
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- STREET
- TOOTH COUNT:
- 47
- UNITS:
- EACH
- COLOR/FINISH:
- GOLD
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- REAR
- COLOR/FINISH:
- STEALTH
- MATERIAL:
- STEEL
- PRODUCT NAME:
- SPROCKET
$119.95Qty in Cart: 0Quantity:Price:$119.95Subtotal: -
SUPERSPROX Stealth Rear Sprocket - 51-Tooth - Gold - Yamaha RST-245-51-GLD
SUPERSPROX
$119.95If you're running a high-displacement Yamaha and tired of replacing worn sprockets every season, the SUPERSPROX Stealth 51-tooth rear sprocket delivers the durability you need without the weight penalty. Steel teeth outlast aluminum alternatives by 4:1,...12101983- SKU:
- 12101983
- Availability:
- Ships Same Business Day
- Weight:
- 2.00 LBS
- COLOR/FINISH:
- STEALTH
- MATERIAL:
- STEEL
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 51
- COLOR/FINISH:
- GOLD
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- REAR
- UNITS:
- EACH
- CHAIN SIZE:
- 520
- MATERIAL:
- ALUMINUM
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- STREET
$119.95Qty in Cart: 0Quantity:Price:$119.95Subtotal: -
SUPERSPROX Stealth Rear Sprocket - 49-Tooth - Blue - Yamaha RST-245-49-BLU
SUPERSPROX
$119.95If you're pushing your Yamaha to its limits, sprocket wear is silently robbing you of power transfer and reliability. The SUPERSPROX Stealth rear sprocket combines steel teeth that outlast aluminum by 4x with a lightweight aluminum core, giving you the...12101986- SKU:
- 12101986
- Availability:
- Ships Same Business Day
- Weight:
- 1.85 LBS
- MOUNTING POSITION:
- REAR
- CHAIN SIZE:
- 520
- COLOR/FINISH:
- STEALTH
- MATERIAL:
- ALUMINUM
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- BLUE
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 49
- MATERIAL:
- STEEL
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- REAR
- UNITS:
- EACH
$119.95 -
SUPERSPROX Stealth Rear Sprocket - 51-Tooth - Black - Yamaha RST-245-51-BLK
SUPERSPROX
$119.95If you're running high-mileage track sessions or pushing your Yamaha RST-245 hard on the street, sprocket wear becomes a real maintenance headache. The SUPERSPROX Stealth 51-tooth rear sprocket solves this problem by combining steel teeth that last 4x...12101992- SKU:
- 12101992
- Availability:
- Ships Same Business Day
- Weight:
- 1.95 LBS
- COLOR/FINISH:
- STEALTH
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 51
- COLOR/FINISH:
- BLACK
- MATERIAL:
- STEEL
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- REAR
- MOUNTING POSITION:
- REAR
- UNITS:
- EACH
- CHAIN SIZE:
- 520
- MATERIAL:
- ALUMINUM
- RIDING STYLE:
- STREET
$119.95 -
SUPERSPROX Stealth Rear Sprocket - 42-Tooth - Gold - KTM RST-899-42-GLD
SUPERSPROX
$119.95Rear sprocket wear is one of the fastest ways to lose efficiency and responsiveness in your drivetrain, especially under aggressive riding. The SUPERSPROX Stealth delivers steel-toothed durability with an aluminum core that cuts weight without...12102048- SKU:
- 12102048
- Availability:
- Ships Same Business Day
- Weight:
- 1.90 LBS
- COLOR/FINISH:
- GOLD
- UNITS:
- EACH
- MATERIAL:
- STEEL
- TOOTH COUNT:
- 42
- TYPE:
- REAR
- CHAIN SIZE:
- 520
- COLOR/FINISH:
- STEALTH
- MATERIAL:
- ALUMINUM
- RIDING STYLE:
- STREET
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
$119.95Qty in Cart: 0Quantity:Price:$119.95Subtotal: -
SUPERSPROX Stealth Rear Sprocket - 45-Tooth - Gold - KTM RST-899-45-GLD
SUPERSPROX
$119.95If you're tired of replacing sprockets every season, the SUPERSPROX Stealth Rear Sprocket solves the durability problem without adding unnecessary weight to your KTM. Steel teeth deliver 4x longer service life than aluminum alternatives, while the...12102050- SKU:
- 12102050
- Availability:
- Ships Same Business Day
- Weight:
- 2.10 LBS
- MATERIAL:
- STEEL
- TYPE:
- REAR
- COLOR/FINISH:
- GOLD
- UNITS:
- EACH
- CHAIN SIZE:
- 520
- COLOR/FINISH:
- STEALTH
- MATERIAL:
- ALUMINUM
- RIDING STYLE:
- STREET
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 45
$119.95Qty in Cart: 0Quantity:Price:$119.95Subtotal: -
SUPERSPROX Stealth Rear Sprocket - 40-Tooth - Gold - Husaberg RST-990-40-GLD
SUPERSPROX
$119.95If you're running a high-displacement bike and tired of replacing sprockets every season, the SUPERSPROX Stealth delivers the durability of steel teeth with the weight savings of an aluminum core. This hybrid design gives you four times the longevity of...12102052- SKU:
- 12102052
- Availability:
- Ships Same Business Day
- Weight:
- 1.60 LBS
- MATERIAL:
- STEEL
- PRODUCT NAME:
- SPROCKET
- UNITS:
- EACH
- COLOR/FINISH:
- STEALTH
- RIDING STYLE:
- OFF-ROAD
- TOOTH COUNT:
- 40
- TYPE:
- REAR
- COLOR/FINISH:
- GOLD
- CHAIN SIZE:
- 520
- MATERIAL:
- ALUMINUM
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- STREET
$119.95 -
SUPERSPROX Stealth Rear Sprocket - 48-Tooth - Gold - Husaberg RST-990-48-GLD
SUPERSPROX
$119.95If you're pushing your Husaberg RST to its limits, sprocket wear shouldn't be your limiting factor. The SUPERSPROX Stealth combines a hardened steel tooth design that outlasts aluminum by 4x with an aluminum core that sheds unnecessary weight—giving you...12102056- SKU:
- 12102056
- Availability:
- Ships Same Business Day
- Weight:
- 1.90 LBS
- CHAIN SIZE:
- 520
- COLOR/FINISH:
- STEALTH
- MATERIAL:
- ALUMINUM
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- STREET
- MATERIAL:
- STEEL
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 48
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- REAR
- COLOR/FINISH:
- GOLD
- UNITS:
- EACH
$119.95Qty in Cart: 0Quantity:Price:$119.95Subtotal: -
SUPERSPROX Stealth Rear Sprocket - 51-Tooth - Blue - Husaberg RST-990-51-BLU
SUPERSPROX
$119.95If you're running a high-displacement bike and want sprocket longevity without sacrificing rotational mass, the SUPERSPROX Stealth delivers steel-tooth durability in a lightweight package. The hybrid steel-tooth, aluminum-core design gives you four times...12102070- SKU:
- 12102070
- Availability:
- Ships Same Business Day
- Weight:
- 2.05 LBS
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- COLOR/FINISH:
- BLUE
- COLOR/FINISH:
- STEALTH
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- TYPE:
- REAR
- UNITS:
- EACH
- RIDING STYLE:
- STREET
- CHAIN SIZE:
- 520
- MATERIAL:
- ALUMINUM
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 51
$119.95Qty in Cart: 0Quantity:Price:$119.95Subtotal: -
SUPERSPROX Rear Sprocket - Black - Honda - 50-Tooth RAL-1204-50-BLK
SUPERSPROX
$64.95A rear sprocket is one of the most critical drivetrain components affecting acceleration, top speed, and chain longevity. SUPERSPROX's 50-tooth aluminum sprocket delivers the strength of premium materials with a weight savings that directly translates to...12111920- SKU:
- 12111920
- Availability:
- Ships Same Business Day
- Weight:
- 0.95 LBS
- CHAIN SIZE:
- 428
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 50
- MODEL:
- ALUMINUM
- UNITS:
- EACH
- COLOR/FINISH:
- BLACK
- MATERIAL:
- 7075-T6 ALUMINUM
- RIDING STYLE:
- OFF-ROAD
$64.95 -
SUPERSPROX Rear Sprocket - Black - Honda - 50-Tooth RAL20950BLK
SUPERSPROX
$64.95A lightweight rear sprocket directly impacts acceleration, fuel efficiency, and overall drivetrain responsiveness—critical factors whether you're racing or pushing your Honda to its limits. SUPERSPROX's 7075-T6 aluminum construction delivers the strength...12111922- SKU:
- 12111922
- Availability:
- Ships Same Business Day
- Weight:
- 0.90 LBS
- COLOR/FINISH:
- BLACK
- MODEL:
- ALUMINUM
- RIDING STYLE:
- OFF-ROAD
- CHAIN SIZE:
- 420
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 50
- UNITS:
- EACH
- MATERIAL:
- 7075-T6 ALUMINUM
- MOUNTING POSITION:
- REAR
$64.95
