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 Edge Rear Sprocket Insert - Gold RACD48045GLD
SUPERSPROX
$10.95A stamped steel sprocket won't cut it if you're serious about chain wear, noise reduction, and long-term durability. The SUPERSPROX Edge Rear Sprocket Insert replaces worn or damaged inserts with precision-engineered replacements that restore proper...12102357- SKU:
- 12102357
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- COLOR/FINISH:
- GOLD
- PRODUCT NAME:
- INSERT
- TYPE:
- EDGE REAR
- UNITS:
- EACH
- RIDING STYLE:
- STREET
$10.95 -
SUPERSPROX Edge Rear Sprocket Insert - Gold RACD48641GLD
SUPERSPROX
$10.95A worn or damaged rear sprocket compromises your chain drive efficiency and introduces vibration that degrades handling and acceleration. The SUPERSPROX Edge Rear Sprocket Insert in gold delivers a precision-engineered replacement that restores optimal...12102358- SKU:
- 12102358
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- COLOR/FINISH:
- GOLD
- PRODUCT NAME:
- INSERT
- TYPE:
- EDGE REAR
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$10.95Qty in Cart: 0Quantity:Price:$10.95Subtotal: -
SUPERSPROX Steel Rear Sprocket - 42-Tooth RFE-990-42-BLK
SUPERSPROX
$49.95A worn or undersized rear sprocket directly impacts acceleration, top-end performance, and drivetrain stress—especially in racing and aggressive riding applications. The SUPERSPROX 42-Tooth Steel Rear Sprocket delivers race-proven durability with a...12101938- SKU:
- 12101938
- Availability:
- Ships Same Business Day
- Weight:
- 1.45 LBS
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- COLOR/FINISH:
- BLACK
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- TOOTH COUNT:
- 42
- TYPE:
- REAR
- PRODUCT NAME:
- SPROCKET
$49.95 -
SUPERSPROX Steel Rear Sprocket - 45-Tooth RFE-990-45-BLK
SUPERSPROX
$54.95A worn or inefficient rear sprocket directly impacts your bike's acceleration, chain longevity, and overall drivetrain reliability. The SUPERSPROX Steel Rear Sprocket delivers race-proven durability with a lightweight design that won't compromise...12101939- SKU:
- 12101939
- Availability:
- Ships Same Business Day
- Weight:
- 1.70 LBS
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- COLOR/FINISH:
- BLACK
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- TOOTH COUNT:
- 45
- TYPE:
- REAR
- UNITS:
- EACH
$54.95 -
SUPERSPROX Stealth Rear Sprocket - 53-Tooth - Gold - Kawasaki RST-460-53-GLD
SUPERSPROX
$119.95Sprocket wear is one of the fastest-draining costs in high-performance riding, especially on track bikes where power demands accelerate degradation. The SUPERSPROX Stealth rear sprocket solves this with steel teeth that outlast aluminum by 4x, giving you...12102001- SKU:
- 12102001
- Availability:
- Ships Same Business Day
- Weight:
- 2.05 LBS
- COLOR/FINISH:
- STEALTH
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- REAR
- MATERIAL:
- STEEL
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 53
- UNITS:
- EACH
- COLOR/FINISH:
- GOLD
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- CHAIN SIZE:
- 520
- MATERIAL:
- ALUMINUM
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- STREET
$119.95Qty in Cart: 0Quantity:Price:$119.95Subtotal: -
SUPERSPROX Steel Rear Sprocket - 56-Tooth RFE-209-56-BLK
SUPERSPROX
$54.95A worn or undersized rear sprocket limits acceleration and forces your engine to work harder, bleeding power and reducing chain life. The SUPERSPROX 56-Tooth Steel Rear Sprocket delivers race-tested durability with a lightweight design that maintains...12101884- SKU:
- 12101884
- Availability:
- Ships Same Business Day
- Weight:
- 2.00 LBS
- TOOTH COUNT:
- 56
- TYPE:
- REAR
- COLOR/FINISH:
- BLACK
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- SPROCKET
- UNITS:
- EACH
- CHAIN SIZE:
- 420
- MOUNTING POSITION:
- REAR
$54.95 -
SUPERSPROX Steel Rear Sprocket - 49-Tooth RFE-210-49-BLK
SUPERSPROX
$59.95A worn or mismatched rear sprocket directly impacts your bike's acceleration, top-end performance, and drivetrain longevity. The SUPERSPROX 49-Tooth Steel Rear Sprocket delivers race-proven durability with measurable gains in chain life and power...12101886- SKU:
- 12101886
- Availability:
- Ships Same Business Day
- Weight:
- 1.90 LBS
- CHAIN SIZE:
- 520
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- BLACK
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- REAR
- UNITS:
- EACH
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 49
- MOUNTING POSITION:
- REAR
$59.95 -
SUPERSPROX Steel Rear Sprocket - 50-Tooth RFE-210-50-BLK
SUPERSPROX
$59.95A rear sprocket is critical to your drivetrain's efficiency and longevity. The SUPERSPROX 50-tooth steel sprocket delivers race-proven durability without the weight penalty of inferior alternatives, making it ideal whether you're hammering a track or...12101887- SKU:
- 12101887
- Availability:
- Ships Same Business Day
- Weight:
- 1.90 LBS
- CHAIN SIZE:
- 520
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 50
- COLOR/FINISH:
- BLACK
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- REAR
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$59.95 -
SUPERSPROX Steel Rear Sprocket - 51-Tooth RFE-210-51-BLK
SUPERSPROX
$64.95A worn or mismatched rear sprocket directly impacts your bike's acceleration, top-end power delivery, and chain longevity. The SUPERSPROX 51-Tooth Steel Rear Sprocket combines race-proven durability with a lightweight design, giving you the responsive...12101888- SKU:
- 12101888
- Availability:
- Ships Same Business Day
- Weight:
- 2.00 LBS
- CHAIN SIZE:
- 520
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- REAR
- UNITS:
- EACH
- MATERIAL:
- STEEL
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 51
$64.95 -
SUPERSPROX Stealth Rear Sprocket - 48-Tooth - Gold - Honda RST-210-48-GLD
SUPERSPROX
$119.95If you're running a high-displacement Honda and tired of replacing worn sprockets every season, the SUPERSPROX Stealth delivers the durability of steel with the lightweight advantage of aluminum. This hybrid design uses hardened steel teeth that resist...12101969- SKU:
- 12101969
- Availability:
- Ships Same Business Day
- Weight:
- 1.90 LBS
- MOUNTING POSITION:
- REAR
- CHAIN SIZE:
- 520
- COLOR/FINISH:
- STEALTH
- MATERIAL:
- ALUMINUM
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- SPROCKET
- COLOR/FINISH:
- GOLD
- MATERIAL:
- STEEL
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- OFF-ROAD
- TOOTH COUNT:
- 48
- TYPE:
- REAR
- UNITS:
- EACH
$119.95 -
SUPERSPROX Stealth Rear Sprocket - 49-Tooth - Gold - Honda RST-210-49-GLD
SUPERSPROX
$119.95If you're running a high-displacement Honda and want a sprocket that won't become your next maintenance headache, the SUPERSPROX Stealth delivers the durability of steel teeth with a weight penalty that won't slow you down. The hybrid steel-and-aluminum...12101970- SKU:
- 12101970
- Availability:
- Ships Same Business Day
- Weight:
- 1.90 LBS
- CHAIN SIZE:
- 520
- MATERIAL:
- ALUMINUM
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- STREET
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 49
- UNITS:
- EACH
- COLOR/FINISH:
- GOLD
- COLOR/FINISH:
- STEALTH
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- REAR
$119.95Qty in Cart: 0Quantity:Price:$119.95Subtotal: -
SUPERSPROX Stealth Rear Sprocket - 51-Tooth - Gold - Honda RST-210-51-GLD
SUPERSPROX
$119.95If you're pushing your Honda to the limit, sprocket wear becomes your limiting factor—and aluminum simply won't cut it for serious track or street use. The SUPERSPROX Stealth rear sprocket combines a lightweight aluminum core with hardened steel teeth...12101972- SKU:
- 12101972
- Availability:
- Ships Same Business Day
- Weight:
- 2.00 LBS
- CHAIN SIZE:
- 520
- MATERIAL:
- ALUMINUM
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- GOLD
- MATERIAL:
- STEEL
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- REAR
- MOUNTING POSITION:
- REAR
- UNITS:
- EACH
- COLOR/FINISH:
- STEALTH
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 51
$119.95 -
SUPERSPROX Stealth Rear Sprocket - 48-Tooth - Red - Honda RST-210-48-RED
SUPERSPROX
$119.95If you're running a high-revving Honda or comparable 1400cc platform, rear sprocket wear directly impacts power delivery and fuel efficiency. The SUPERSPROX Stealth combines a steel-tooth design with a lightweight aluminum core to give you four times the...12101974- SKU:
- 12101974
- Availability:
- Ships Same Business Day
- Weight:
- 2.00 LBS
- COLOR/FINISH:
- RED
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- UNITS:
- EACH
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- TOOTH COUNT:
- 48
- TYPE:
- REAR
- CHAIN SIZE:
- 520
- COLOR/FINISH:
- STEALTH
- MATERIAL:
- ALUMINUM
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- SPROCKET
$119.95Qty in Cart: 0Quantity:Price:$119.95Subtotal: -
SUPERSPROX Stealth Rear Sprocket - 52-Tooth - Red - Honda RST-210-52-RED
SUPERSPROX
$119.95If you're running hard on the track or pushing your Honda to its limits on the street, sprocket wear directly impacts your power delivery and acceleration feel. The SUPERSPROX Stealth Rear Sprocket gives you steel teeth that outlast aluminum by 4x,...12101978- SKU:
- 12101978
- Availability:
- Ships Same Business Day
- Weight:
- 1.95 LBS
- COLOR/FINISH:
- STEALTH
- MATERIAL:
- STEEL
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 52
- UNITS:
- EACH
- COLOR/FINISH:
- RED
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- REAR
- CHAIN SIZE:
- 520
- MATERIAL:
- ALUMINUM
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- STREET
$119.95 -
SUPERSPROX Stealth Rear Sprocket - 49-Tooth - Gold - Yamaha RST-245-49-GLD
SUPERSPROX
$119.95If you're pushing your Yamaha hard on the track or street, sprocket wear is one of the most overlooked maintenance items that directly impacts acceleration, top-end performance, and reliability. The SUPERSPROX Stealth solves this problem with steel teeth...12101981- SKU:
- 12101981
- Availability:
- Ships Same Business Day
- Weight:
- 1.85 LBS
- COLOR/FINISH:
- STEALTH
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 49
- COLOR/FINISH:
- GOLD
- MATERIAL:
- STEEL
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- REAR
- MATERIAL:
- ALUMINUM
- MOUNTING POSITION:
- REAR
- CHAIN SIZE:
- 520
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$119.95 -
SUPERSPROX Stealth Rear Sprocket - 43-Tooth - Gold - Kawasaki RST-487-43-GLD
SUPERSPROX
$119.95If you're running a high-displacement sportbike or cruiser, sprocket wear is a constant maintenance headache that impacts both acceleration response and drivetrain longevity. The SUPERSPROX Stealth rear sprocket eliminates this problem by pairing steel...12102017- SKU:
- 12102017
- Availability:
- Ships Same Business Day
- Weight:
- 1.70 LBS
- CHAIN SIZE:
- 520
- COLOR/FINISH:
- STEALTH
- MATERIAL:
- ALUMINUM
- MOUNTING POSITION:
- REAR
- MATERIAL:
- STEEL
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- STREET
- TYPE:
- REAR
- COLOR/FINISH:
- GOLD
- TOOTH COUNT:
- 43
- UNITS:
- EACH
$119.95Qty in Cart: 0Quantity:Price:$119.95Subtotal: -
SUPERSPROX Stealth Rear Sprocket - 44-Tooth - Gold - Kawasaki RST-487-44-GLD
SUPERSPROX
$119.95If you're running a high-displacement sportbike or cruiser, rear sprocket durability directly impacts your power delivery and maintenance intervals. The SUPERSPROX Stealth combines a forged steel tooth design with a lightweight aluminum core, giving you...12102018- SKU:
- 12102018
- Availability:
- Ships Same Business Day
- Weight:
- 1.75 LBS
- COLOR/FINISH:
- GOLD
- UNITS:
- EACH
- CHAIN SIZE:
- 520
- COLOR/FINISH:
- STEALTH
- MATERIAL:
- ALUMINUM
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- STREET
- TYPE:
- REAR
- MATERIAL:
- STEEL
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 44
$119.95Qty in Cart: 0Quantity:Price:$119.95Subtotal: -
SUPERSPROX Rear Sprocket - Black - Yamaha - 49-Tooth RAL-245-49 BLK
SUPERSPROX
$69.95A lightweight rear sprocket is fundamental to reducing unsprung mass and improving acceleration response in your drivetrain. The SUPERSPROX 49-tooth sprocket delivers measurable gains in power delivery while the grooved tooth design extends chain and...12111937- SKU:
- 12111937
- Availability:
- Ships Same Business Day
- Weight:
- 1.05 LBS
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 49
- MATERIAL:
- 7075-T6 ALUMINUM
- RIDING STYLE:
- OFF-ROAD
- CHAIN SIZE:
- 520
- COLOR/FINISH:
- BLACK
- MODEL:
- ALUMINUM
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$69.95 -
SUPERSPROX Rear Sprocket - Black - Yamaha - 51-Tooth RAL-245-51 BLK
SUPERSPROX
$69.95A lightweight rear sprocket is critical for reducing unsprung weight and improving throttle response—and the SUPERSPROX 51-tooth delivers both without sacrificing durability. Built from 7075-T6 aluminum and CNC-machined to exacting tolerances, this...12111939- SKU:
- 12111939
- Availability:
- Ships Same Business Day
- Weight:
- 1.05 LBS
- MODEL:
- ALUMINUM
- MATERIAL:
- 7075-T6 ALUMINUM
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 51
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- CHAIN SIZE:
- 520
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- STREET
$69.95 -
MOOSE RACING Dual Sprocket - Red - 52 Tooth 1210-210-52-13X
MOOSE RACING
$69.95A rear sprocket needs to handle extreme torque, dirt, and abuse—without adding unnecessary weight to your machine. The MOOSE RACING Dual Sprocket combines a lightweight 7075 T6 aluminum inner ring with a heavy-duty steel outer ring, giving you the...12101474- SKU:
- 12101474
- Availability:
- Ships Same Business Day
- Weight:
- 1.96 LBS
- CHAIN SIZE:
- 520
- MATERIAL:
- HEAVY-DUTY STEEL OUTER RING
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- DUAL
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 52
- UNITS:
- EACH
- COLOR/FINISH:
- RED
- MATERIAL:
- 7075-T6 ALUMINUM INNER RING
$69.95Qty in Cart: 0Quantity:Price:$69.95Subtotal:
