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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MOOSE RACING Dual Sprocket MSE - Black - 51-Tooth 1210-251-51-10X
MOOSE RACING
$69.95A rear sprocket is one of the most wear-intensive components on your drivetrain, and choosing the right one directly impacts your power delivery and longevity. The MOOSE RACING Dual Sprocket MSE combines a lightweight 7075 T6 aluminum inner ring with a...12101484- SKU:
- 12101484
- Availability:
- Ships Same Business Day
- Weight:
- 1.85 LBS
- CHAIN SIZE:
- 520
- MATERIAL:
- HEAVY-DUTY STEEL OUTER RING
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 51
- UNITS:
- EACH
- COLOR/FINISH:
- BLACK
- MATERIAL:
- 7075-T6 ALUMINUM INNER RING
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- DUAL
- TYPE:
- DRIVE
$69.95Qty in Cart: 0Quantity:Price:$69.95Subtotal: -
MOOSE RACING Dual Sprocket MSE - Silver - 51-Tooth 1210-251-51-11X
MOOSE RACING
$69.95The MOOSE RACING Dual Sprocket MSE delivers the weight savings of aluminum with the durability of steel—a critical advantage for riders who demand reliable power transfer without sacrificing acceleration. The hybrid construction keeps your bike nimble...12101485- SKU:
- 12101485
- Availability:
- Ships Same Business Day
- Weight:
- 1.80 LBS
- COLOR/FINISH:
- SILVER
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- DUAL
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 51
- UNITS:
- EACH
- MATERIAL:
- 7075-T6 ALUMINUM INNER RING
- CHAIN SIZE:
- 520
- MATERIAL:
- HEAVY-DUTY STEEL OUTER RING
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
$69.95 -
MOOSE RACING Dual Sprocket MSE - Black - 52-Tooth 1210-251-52-10X
MOOSE RACING
$69.95A rear sprocket needs to survive extreme torque, abrasive conditions, and countless engagement cycles—which is why aluminum alone falls short. The MOOSE RACING Dual Sprocket MSE combines a lightweight 7075 T6 aluminum inner ring with a hardened steel...12101487- SKU:
- 12101487
- Availability:
- Ships Same Business Day
- Weight:
- 1.95 LBS
- PRODUCT NAME:
- SPROCKET
- STYLE:
- DUAL
- TOOTH COUNT:
- 52
- UNITS:
- EACH
- COLOR/FINISH:
- BLACK
- MATERIAL:
- 7075-T6 ALUMINUM INNER RING
- RIDING STYLE:
- OFF-ROAD
- CHAIN SIZE:
- 520
- MATERIAL:
- HEAVY-DUTY STEEL OUTER RING
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
$69.95 -
MOOSE RACING Dual Sprocket MSE - Silver - 52-Tooth 1210-251-52-11X
MOOSE RACING
$69.95A rear sprocket that can actually keep up with your bike demands precision engineering and durability you can count on. The MOOSE RACING Dual Sprocket MSE combines a lightweight 7075 T6 aluminum inner ring with a hardened steel outer ring, giving you the...12101488- SKU:
- 12101488
- Availability:
- Ships Same Business Day
- Weight:
- 1.94 LBS
- COLOR/FINISH:
- SILVER
- MATERIAL:
- 7075-T6 ALUMINUM INNER RING
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- CHAIN SIZE:
- 520
- MATERIAL:
- HEAVY-DUTY STEEL OUTER RING
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- SPROCKET
- STYLE:
- DUAL
- MOUNTING POSITION:
- REAR
- TOOTH COUNT:
- 52
$69.95 -
MOOSE RACING Dual Sprocket MSE - Blue - 52-Tooth 1210-251-52-12X
MOOSE RACING
$69.95If you're running a high-performance dirt bike or off-road machine, sprocket wear directly impacts acceleration, top speed, and overall drivetrain efficiency. The MOOSE RACING Dual Sprocket MSE delivers the durability of steel with the lightweight...12101489- SKU:
- 12101489
- Availability:
- Ships Same Business Day
- Weight:
- 1.95 LBS
- TOOTH COUNT:
- 52
- CHAIN SIZE:
- 520
- MATERIAL:
- HEAVY-DUTY STEEL OUTER RING
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- COLOR/FINISH:
- BLUE
- PRODUCT NAME:
- SPROCKET
- STYLE:
- DUAL
- MATERIAL:
- 7075-T6 ALUMINUM INNER RING
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
$69.95Qty in Cart: 0Quantity:Price:$69.95Subtotal: -
MOOSE RACING Dual Sprocket - Black - 48 Tooth 1210-460-48-10X
MOOSE RACING
$69.95If you're running a rear sprocket that can't handle the demands of aggressive riding or racing, you're losing power and reliability where it counts most. The MOOSE RACING Dual Sprocket combines the weight savings of aluminum with the durability of steel,...12101490- SKU:
- 12101490
- Availability:
- Ships Same Business Day
- Weight:
- 1.71 LBS
- PRODUCT NAME:
- SPROCKET
- STYLE:
- DUAL
- TOOTH COUNT:
- 48
- COLOR/FINISH:
- BLACK
- MATERIAL:
- 7075-T6 ALUMINUM INNER RING
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- CHAIN SIZE:
- 520
- MATERIAL:
- HEAVY-DUTY STEEL OUTER RING
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
$69.95 -
MOOSE RACING Dual Sprocket - Green - 48 Tooth 1210-460-48-15X
MOOSE RACING
$69.95If you're running a rear sprocket that's wearing out faster than your lap times improve, it's time to upgrade to proven engineering. The MOOSE RACING Dual Sprocket combines the lightweight strength of 7075 T6 aluminum with heavy-duty steel construction,...12101491- SKU:
- 12101491
- Availability:
- Ships Same Business Day
- Weight:
- 1.65 LBS
- COLOR/FINISH:
- GREEN
- CHAIN SIZE:
- 520
- PRODUCT NAME:
- SPROCKET
- STYLE:
- DUAL
- TOOTH COUNT:
- 48
- MATERIAL:
- HEAVY-DUTY STEEL OUTER RING
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- MATERIAL:
- 7075-T6 ALUMINUM INNER RING
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
$69.95 -
MOOSE RACING Dual Sprocket - Black - 49 Tooth 1210-460-49-10X
MOOSE RACING
$69.95A dual-ring sprocket design built specifically for riders who demand longevity without sacrificing weight. The MOOSE RACING 49-tooth combines a 7075 T6 aluminum inner ring with a heavy-duty steel outer ring, giving you the durability of steel with a...12101492- SKU:
- 12101492
- Availability:
- Ships Same Business Day
- Weight:
- 1.75 LBS
- COLOR/FINISH:
- BLACK
- MATERIAL:
- 7075-T6 ALUMINUM INNER RING
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- PRODUCT NAME:
- SPROCKET
- STYLE:
- DUAL
- TOOTH COUNT:
- 49
- CHAIN SIZE:
- 520
- MATERIAL:
- HEAVY-DUTY STEEL OUTER RING
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- MOUNTING POSITION:
- REAR
$69.95 -
MOOSE RACING Dual Sprocket - Green - 49 Tooth 1210-460-49-15X
MOOSE RACING
$69.95If you're tired of replacing rear sprockets every season, the MOOSE RACING Dual Sprocket delivers the durability of steel with the weight savings of aluminum—a hybrid design that doesn't compromise on either front. The 7075 T6 inner ring paired with...12101493- SKU:
- 12101493
- Availability:
- Ships Same Business Day
- Weight:
- 1.75 LBS
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 49
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- DUAL
- COLOR/FINISH:
- GREEN
- MATERIAL:
- HEAVY-DUTY STEEL OUTER RING
- MOUNTING POSITION:
- REAR
- CHAIN SIZE:
- 520
- MATERIAL:
- 7075-T6 ALUMINUM INNER RING
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$69.95 -
MOOSE RACING Dual Sprocket - Black - 50 Tooth 1210-460-50-10X
MOOSE RACING
$69.95A rear sprocket needs to handle extreme torque and constant abuse—which is why the MOOSE RACING Dual Sprocket combines a lightweight 7075 T6 aluminum inner ring with a reinforced steel outer ring. This hybrid construction delivers the weight savings you...12101494- SKU:
- 12101494
- Availability:
- Ships Same Business Day
- Weight:
- 1.71 LBS
- MATERIAL:
- 7075-T6 ALUMINUM INNER RING
- UNITS:
- EACH
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- DUAL
- CHAIN SIZE:
- 520
- MATERIAL:
- HEAVY-DUTY STEEL OUTER RING
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 50
$69.95 -
MOOSE RACING Dual Sprocket - Green - 51 Tooth 1210-460-51-15X
MOOSE RACING
$69.95If you're running a rear sprocket that can't handle the demands of serious riding, you're leaving performance on the table. The MOOSE RACING Dual Sprocket delivers the durability of steel with the weight savings of aluminum—a combination that reduces...12101497- SKU:
- 12101497
- Availability:
- Ships Same Business Day
- Weight:
- 1.80 LBS
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- DUAL
- MATERIAL:
- 7075-T6 ALUMINUM INNER RING
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 51
- UNITS:
- EACH
- CHAIN SIZE:
- 520
- COLOR/FINISH:
- GREEN
- MATERIAL:
- HEAVY-DUTY STEEL OUTER RING
- MOUNTING POSITION:
- REAR
$69.95 -
MOOSE RACING Dual Sprocket - Red - 50 Tooth 1210-210-50-13X
MOOSE RACING
$69.95The MOOSE RACING Dual Sprocket delivers the lightweight advantage of aluminum with the durability of steel, eliminating the compromise between weight savings and longevity. Its hybrid construction resists wear better than standard aluminum sprockets...12101468- SKU:
- 12101468
- Availability:
- Ships Same Business Day
- Weight:
- 1.70 LBS
- COLOR/FINISH:
- RED
- MATERIAL:
- 7075-T6 ALUMINUM INNER RING
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- MOUNTING POSITION:
- REAR
- CHAIN SIZE:
- 520
- MATERIAL:
- HEAVY-DUTY STEEL OUTER RING
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- PRODUCT NAME:
- SPROCKET
- STYLE:
- DUAL
- TOOTH COUNT:
- 50
$69.95 -
MOOSE RACING Dual Sprocket - Black - 52 Tooth 1210-210-52-10X
MOOSE RACING
$69.95A rear sprocket must survive extreme chain tension, mud accumulation, and repeated impact—all while keeping your bike responsive. The MOOSE RACING Dual Sprocket combines lightweight 7075 T6 aluminum with a hardened steel outer ring to give you durability...12101472- SKU:
- 12101472
- Availability:
- Ships Same Business Day
- Weight:
- 2.00 LBS
- MATERIAL:
- HEAVY-DUTY STEEL OUTER RING
- MOUNTING POSITION:
- REAR
- TOOTH COUNT:
- 52
- COLOR/FINISH:
- BLACK
- MATERIAL:
- 7075-T6 ALUMINUM INNER RING
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- DRIVE
- UNITS:
- EACH
- PRODUCT NAME:
- SPROCKET
- STYLE:
- DUAL
- CHAIN SIZE:
- 520
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
$69.95 -
On Sale
Sunstar Rear Sprocket 42 Tooth for Honda CBR1000RR 2004-2012 2-346242
SUNSTAR SPROCKETS
MSRP: $45.95Now: $33.00Was: $45.95A worn or undersized rear sprocket directly limits your CBR1000RR's acceleration and top-end performance. The Sunstar 42-tooth rear sprocket restores aggressive power delivery through optimized tooth geometry and weight reduction, while cleaning grooves...2346242- SKU:
- 2346242
- Availability:
- Ships Same Business Day
- Weight:
- 1.35 LBS
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- COLOR/FINISH:
- STEEL
- TOOTH COUNT:
- 42
- TYPE:
- REAR
- CHAIN SIZE:
- 520
- MATERIAL:
- CARBON STEEL
- RIDING STYLE:
- ATV
- UNITS:
- EACH
MSRP: $45.95Now: $33.00Was: $45.95 -
On Sale
Sunstar Steel Rear Sprocket 45 Tooth Gas Gas EC 300 2009 2-363145
SUNSTAR SPROCKETS
MSRP: $65.95Now: $42.00Was: $65.95A worn or damaged rear sprocket directly impacts your bike's acceleration, power delivery, and overall driveability. The Sunstar Steel Rear Sprocket restores optimal chain engagement and ensures consistent performance whether you're pushing hard on the...12100958- SKU:
- 12100958
- Availability:
- Ships Same Business Day
- Weight:
- 1.75 LBS
- CHAIN SIZE:
- 520
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 45
- COLOR/FINISH:
- NATURAL
- MOUNTING POSITION:
- REAR
- UNITS:
- EACH
- MATERIAL:
- STEEL
MSRP: $65.95Now: $42.00Was: $65.95Qty in Cart: 0Quantity:Price:MSRP: $65.95Now: $42.00Was: $65.95Subtotal: -
On Sale
Sunstar Rear Sprocket 48T Husqvarna TC85 2014-2024 KTM 85 SX 2003-2024 5-248148OR
SUNSTAR SPROCKETS
MSRP: $71.95Now: $52.00Was: $71.95Stepping up to a 48-tooth rear sprocket transforms your acceleration and mid-range response, giving you measurable gains in corner exit power and overall drivetrain efficiency. The Sunstar design maximizes chain contact and minimizes unsprung weight,...12111698- SKU:
- 12111698
- Availability:
- Ships Same Business Day
- Weight:
- 0.55 LBS
- CHAIN SIZE:
- 428
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- UNITS:
- EACH
- RIDING STYLE:
- OFF-ROAD
- TOOTH COUNT:
- 48
- TYPE:
- DRIVE
- MATERIAL:
- 7075-T6 ALUMINUM
- COLOR/FINISH:
- WORKS/ORANGE
MSRP: $71.95Now: $52.00Was: $71.95 -
On Sale
Sunstar Rear Sprocket 46T Gold Honda CRF250R 2004-2022 5-355946
SUNSTAR SPROCKETS
MSRP: $88.95Now: $57.00Was: $88.95The wear on your stock sprocket directly impacts power delivery, acceleration, and chain longevity. A worn 46-tooth rear sprocket sacrifices efficiency and forces your drivetrain to work harder, reducing overall performance and increasing maintenance...12110274- SKU:
- 12110274
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
- PRODUCT NAME:
- SPROCKET
- MATERIAL:
- 7075-T6 ALUMINUM
- TOOTH COUNT:
- 46
- CHAIN SIZE:
- 520
- COLOR/FINISH:
- WORKS/GOLD
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- TYPE:
- DRIVE
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
MSRP: $88.95Now: $57.00Was: $88.95Qty in Cart: 0Quantity:Price:MSRP: $88.95Now: $57.00Was: $88.95Subtotal: -
On Sale
Sunstar 48 Tooth Rear Sprocket for Honda CRF250R 2004-2024 Black 5-355948BK
SUNSTAR SPROCKETS
MSRP: $88.95Now: $57.00Was: $88.95If you're running a CRF250R, chain wear directly impacts acceleration response and overall drivetrain efficiency. The Sunstar 48-tooth rear sprocket replaces worn or damaged stock sprockets with aerospace-grade construction, restoring crisp power...12111111- SKU:
- 12111111
- Availability:
- Ships Same Business Day
- Weight:
- 1.05 LBS
- COLOR/FINISH:
- WORKS/BLACK
- MATERIAL:
- 7075-T6 ALUMINUM
- RIDING STYLE:
- OFF-ROAD
- TOOTH COUNT:
- 48
- TYPE:
- DRIVE
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- CHAIN SIZE:
- 520
- UNITS:
- EACH
MSRP: $88.95Now: $57.00Was: $88.95Qty in Cart: 0Quantity:Price:MSRP: $88.95Now: $57.00Was: $88.95Subtotal: -
MOOSE RACING Sprocket - 48 Tooth 1210-897-48-13X
MOOSE RACING
$69.95A rear sprocket needs to handle extreme torque and abuse without adding unnecessary weight to your bike. The MOOSE RACING 48-tooth sprocket combines the durability of steel teeth with the lightweight benefits of aluminum, giving you a component that...12102642- SKU:
- 12102642
- Availability:
- Ships Same Business Day
- Weight:
- 1.65 LBS
- COLOR/FINISH:
- RED
- MATERIAL:
- 7075-T6 ALUMINUM INNER RING
- MATERIAL:
- HEAVY-DUTY STEEL OUTER RING
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- STYLE:
- DUAL
- TOOTH COUNT:
- 48
- UNITS:
- EACH
- RIDING STYLE:
- OFF-ROAD
$69.95 -
MOOSE RACING Dual Sprocket - 49 Tooth 1210-897-49-13X
MOOSE RACING
$69.95A lightweight yet durable rear sprocket is critical for maintaining throttle response and reducing unsprung weight in high-performance applications. The MOOSE RACING Dual Sprocket combines the strength of steel with the weight savings of premium...12102643- SKU:
- 12102643
- Availability:
- Ships Same Business Day
- Weight:
- 1.65 LBS
- COLOR/FINISH:
- RED
- MATERIAL:
- 7075-T6 ALUMINUM INNER RING
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- DUAL
- UNITS:
- EACH
- MATERIAL:
- HEAVY-DUTY STEEL OUTER RING
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 49
$69.95
