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 - Black - 48 Tooth 1210-460-48-10X
MOOSE RACING
$69.95MOOSE RACING Dual Sprocket Black 48 Tooth 1210-460-48-10XDesigned to outlast standard aluminum rear sprockets and is much lighter than steel rear sprockets, Inner ring is made from 7075 T6 aluminum and the outer ring is made from heavy duty steel,...12101490- SKU:
- 12101490
- Availability:
- Ships Same Business Day
- Weight:
- 1.70 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
$69.95MOOSE RACING Dual Sprocket Green 48 Tooth 1210-460-48-15XDesigned to outlast standard aluminum rear sprockets and is much lighter than steel rear sprockets, Inner ring is made from 7075 T6 aluminum and the outer ring is made from heavy duty steel,...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
$69.95MOOSE RACING Dual Sprocket Black 49 Tooth 1210-460-49-10XDesigned to outlast standard aluminum rear sprockets and is much lighter than steel rear sprockets, Inner ring is made from 7075 T6 aluminum and the outer ring is made from heavy duty steel,...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
$69.95MOOSE RACING Dual Sprocket Green 49 Tooth 1210-460-49-15XDesigned to outlast standard aluminum rear sprockets and is much lighter than steel rear sprockets, Inner ring is made from 7075 T6 aluminum and the outer ring is made from heavy duty steel,...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
$69.95MOOSE RACING Dual Sprocket Black 50 Tooth 1210-460-50-10XDesigned to outlast standard aluminum rear sprockets and is much lighter than steel rear sprockets, Inner ring is made from 7075 T6 aluminum and the outer ring is made from heavy duty steel,...12101494- SKU:
- 12101494
- Availability:
- Ships Same Business Day
- Weight:
- 1.70 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
$69.95MOOSE RACING Dual Sprocket Green 51 Tooth 1210-460-51-15XDesigned to outlast standard aluminum rear sprockets and is much lighter than steel rear sprockets, Inner ring is made from 7075 T6 aluminum and the outer ring is made from heavy duty steel,...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
$69.95MOOSE RACING Dual Sprocket Red 50 Tooth 1210-210-50-13XDesigned to outlast standard aluminum rear sprockets and is much lighter than steel rear sprockets, Inner ring is made from 7075 T6 aluminum and the outer ring is made from heavy duty steel,...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
$69.95MOOSE RACING Dual Sprocket Black 52 Tooth 1210-210-52-10XDesigned to outlast standard aluminum rear sprockets and is much lighter than steel rear sprockets, Inner ring is made from 7075 T6 aluminum and the outer ring is made from heavy duty steel,...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 -
Sunstar Rear Sprocket 50T Blue Honda XR200R 1984-2002 5-359250BL
SUNSTAR SPROCKETS
$78.95SUNSTAR SPROCKETS Rear Sprocket 50-Tooth Honda/Yamaha Blue 5-359250BL Elevate your ride with the SUNSTAR 50-Tooth Rear Sprocket, meticulously engineered for Honda and Yamaha motorcycles. Crafted from aerospace-grade 7075 T-6 aluminum, this sprocket...12111693- SKU:
- 12111693
- Availability:
- Ships Same Business Day
- Weight:
- 1.15 LBS
- CHAIN SIZE:
- 520
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- DRIVE
- COLOR/FINISH:
- WORKS/BLUE
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 50
- UNITS:
- EACH
- MATERIAL:
- 7075-T6 ALUMINUM
$78.95Qty in Cart: 0Quantity:Price:$78.95Subtotal: -
Sunstar Rear Sprocket 51T Blue 5-359251BL
SUNSTAR SPROCKETS
$78.95SUNSTAR SPROCKETS Rear Sprocket 51-Tooth for Honda/Yamaha - Blue 5-359251BL Elevate your motorcycle's performance with the SUNSTAR SPROCKETS Rear Sprocket, designed specifically for Honda and Yamaha models. Crafted from aerospace-grade 7075 T-6 aluminum,...12111694- SKU:
- 12111694
- Availability:
- Ships Same Business Day
- Weight:
- 1.05 LBS
- RIDING STYLE:
- OFF-ROAD
- CHAIN SIZE:
- 520
- COLOR/FINISH:
- WORKS/BLUE
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- UNITS:
- EACH
- TYPE:
- DRIVE
- MATERIAL:
- 7075-T6 ALUMINUM
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 51
$78.95Qty in Cart: 0Quantity:Price:$78.95Subtotal: -
Sunstar Rear Sprocket 42 Tooth for Honda CBR1000RR 2004-2012 2-346242
SUNSTAR SPROCKETS
$45.95SUNSTAR SPROCKETS Rear Sprocket 42-Tooth for Honda 2-346242 Elevate your motorcycle's performance with the SUNSTAR 42-Tooth Rear Sprocket, expertly crafted for Honda models. Renowned as the leading OEM and aftermarket supplier since 1946, Sunstar...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
$45.95 -
Sunstar Rear Sprocket 50T for KTM 125-500 1991-2019 Husaberg 125-501 2000-2019 Husqvarna 125-701 2014-2022 5-354750
SUNSTAR SPROCKETS
$88.95SUNSTAR SPROCKETS Rear Sprocket 50-Tooth Husaberg/Husqvarna/KTM Orange 5-354750OR Experience unmatched performance with the SUNSTAR Rear Sprocket, designed specifically for Husaberg, Husqvarna, and KTM motorcycles. Crafted from aerospace-grade 7075 T-6...12111338- SKU:
- 12111338
- Availability:
- Ships Same Business Day
- Weight:
- 1.05 LBS
- CHAIN SIZE:
- 520
- MATERIAL:
- 7075-T6 ALUMINUM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- WORKS/ORANGE
- UNITS:
- EACH
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 50
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- DRIVE
$88.95Qty in Cart: 0Quantity:Price:$88.95Subtotal: -
Sunstar Rear Sprocket 47T for KTM 85 SX 2003-2024 2-248147
SUNSTAR SPROCKETS
$46.95SUNSTAR SPROCKETS Rear Sprocket 47-Tooth KTM 2-248147 Enhance your motorcycle's performance with the SUNSTAR 47-Tooth Rear Sprocket, engineered for optimal power transfer and durability. As a leader in sprocket manufacturing since 1946, Sunstar combines...12100619- SKU:
- 12100619
- Availability:
- Ships Same Business Day
- Weight:
- 1.85 LBS
- COLOR/FINISH:
- NATURAL
- MATERIAL:
- CARBON STEEL
- MOUNTING POSITION:
- REAR
- TOOTH COUNT:
- 47
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- DRIVE
- UNITS:
- EACH
- CHAIN SIZE:
- 428
- PRODUCT NAME:
- SPROCKET
$46.95 -
Sunstar Steel Rear Sprocket 45 Tooth Gas Gas EC 300 2009 2-363145
SUNSTAR SPROCKETS
$58.95SUNSTAR SPROCKETS Steel Rear Sprocket 45 Tooth for Gas Gas 2-363145 Enhance your motorcycle's performance with the SUNSTAR Steel Rear Sprocket, designed specifically for Gas Gas models. Crafted from premium 1045 high-carbon steel, this sprocket ensures...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
$58.95 -
Sunstar Rear Sprocket 48T Husqvarna TC85 2014-2024 KTM 85 SX 2003-2024 5-248148OR
SUNSTAR SPROCKETS
$71.95Sunstar 48-Tooth Rear Sprocket for Husqvarna/KTM - Orange (5-248148OR) Upgrade your ride with the Sunstar 48-Tooth Rear Sprocket, designed specifically for Husqvarna and KTM motorcycles. Crafted from premium aerospace-grade 7075 T-6 aluminum, this...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
$71.95 -
Sunstar Rear Sprocket 46T Gold Honda CRF250R 2004-2022 5-355946
SUNSTAR SPROCKETS
$78.95High-Performance SUNSTAR SPROCKETS Rear Sprocket - 46 Tooth for Honda Gold Experience unparalleled performance with the SUNSTAR SPROCKETS Rear Sprocket, expertly designed for the Honda Gold. Crafted from premium aerospace-grade 7075 T-6 aluminum, this...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
$78.95 -
Sunstar Rear Sprocket 51T Black KTM 2017-2019 5-354751BK
SUNSTAR SPROCKETS
$88.95SUNSTAR SPROCKETS Rear Sprocket 51-Tooth Black 5-354751BK Elevate your motorcycle's performance with the SUNSTAR Rear Sprocket, meticulously engineered for superior power transfer and durability. Crafted from aerospace-grade 7075 T-6 aluminum, this...12111108- SKU:
- 12111108
- Availability:
- Ships Same Business Day
- Weight:
- 1.10 LBS
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 51
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- DRIVE
- CHAIN SIZE:
- 520
- MATERIAL:
- 7075-T6 ALUMINUM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- WORKS/BLACK
- UNITS:
- EACH
$88.95Qty in Cart: 0Quantity:Price:$88.95Subtotal: -
Sunstar 48 Tooth Rear Sprocket for Honda CRF250R 2004-2024 Black 5-355948BK
SUNSTAR SPROCKETS
$78.95SUNSTAR SPROCKETS Rear Sprocket 48 Tooth Honda Black 5-355948BK Elevate your motorcycle's performance with the SUNSTAR Rear Sprocket, designed specifically for Honda models. Crafted from aerospace-grade 7075 T-6 aluminum, this sprocket combines...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
$78.95 -
Sunstar Rear Sprocket 51T Black Honda XR600R 1985-1987 5-359251BK
SUNSTAR SPROCKETS
$88.95SUNSTAR SPROCKETS Rear Sprocket 51-Tooth Black 5-359251BK Elevate your motorcycle's performance with the SUNSTAR 51-Tooth Rear Sprocket, engineered for optimal power transfer and durability. Crafted from premium aerospace-grade 7075 T-6 aluminum, this...12111124- SKU:
- 12111124
- Availability:
- Ships Same Business Day
- Weight:
- 1.15 LBS
- CHAIN SIZE:
- 520
- TYPE:
- DRIVE
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- COLOR/FINISH:
- WORKS/BLACK
- MATERIAL:
- 7075-T6 ALUMINUM
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 51
$88.95Qty in Cart: 0Quantity:Price:$88.95Subtotal: -
Sunstar Rear Sprocket 49T Black Kawasaki KX250F 2004-2018 5-361949BK
SUNSTAR SPROCKETS
$78.95Sunstar 49-Tooth Rear Sprocket for Kawasaki - Black (5-361949BK) Upgrade your ride with the Sunstar 49-Tooth Rear Sprocket, designed specifically for Kawasaki motorcycles. Crafted from high-grade aerospace aluminum, this sprocket combines lightweight...12111127- SKU:
- 12111127
- Availability:
- Ships Same Business Day
- Weight:
- 0.95 LBS
- CHAIN SIZE:
- 520
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- COLOR/FINISH:
- WORKS/BLACK
- MATERIAL:
- 7075-T6 ALUMINUM
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 49
- UNITS:
- EACH
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- DRIVE
$78.95
