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!
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- Price
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JT SPROCKETS Sprocket - Rear - Yamaha - 40-Tooth JTR853.40
JT SPROCKETS
$23.53Computer-designed to achieve ultimate strength at minimum weight, JT combines leading-edge technology with top materials to produce the ultimate quality sprocket range with unbeatable value, Every sprocket meets or exceeds the highest possible quality...JTR85340- SKU:
- JTR85340
- Availability:
- Ships Same Business Day
- Weight:
- 1.20 LBS
- CHAIN SIZE:
- 520
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- TOOTH COUNT:
- 40
- PRODUCT NAME:
- SPROCKET
$23.53 -
On Sale
SUPERSPROX Edge Rear Sprocket Insert - Gold RACD130442GLD
SUPERSPROX
MSRP: $10.95Now: $7.00Was: $10.95Upgrade over traditional stamped steel sprockets with modern styling12102331- SKU:
- 12102331
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- COLOR/FINISH:
- GOLD
- PRODUCT NAME:
- INSERT
- TYPE:
- EDGE REAR
- UNITS:
- EACH
- RIDING STYLE:
- STREET
MSRP: $10.95Now: $7.00Was: $10.95 -
SUPERSPROX Edge Rear Sprocket Insert - Gold RACD130443GLD
SUPERSPROX
$10.95Upgrade over traditional stamped steel sprockets with modern styling12102332- SKU:
- 12102332
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- GOLD
- TYPE:
- EDGE REAR
- UNITS:
- EACH
- PRODUCT NAME:
- INSERT
$10.95 -
On Sale
SUPERSPROX Edge Rear Sprocket Insert - Gold RACD48043GLD
SUPERSPROX
MSRP: $10.95Now: $7.00Was: $10.95Upgrade over traditional stamped steel sprockets with modern styling12102355- SKU:
- 12102355
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- TYPE:
- EDGE REAR
- COLOR/FINISH:
- GOLD
- PRODUCT NAME:
- INSERT
MSRP: $10.95Now: $7.00Was: $10.95 -
SUPERSPROX Edge Rear Sprocket Insert - Blue RACD48045BLU
SUPERSPROX
$10.95Upgrade over traditional stamped steel sprockets with modern styling12102356- SKU:
- 12102356
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- BLUE
- PRODUCT NAME:
- INSERT
- TYPE:
- EDGE REAR
- UNITS:
- EACH
$10.95 -
On Sale
SUPERSPROX Edge Rear Sprocket Insert - Green RACD48641GRN
SUPERSPROX
MSRP: $10.95Now: $7.00Was: $10.95Upgrade over traditional stamped steel sprockets with modern styling12102359- SKU:
- 12102359
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- TYPE:
- EDGE REAR
- UNITS:
- EACH
- COLOR/FINISH:
- GREEN
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- INSERT
MSRP: $10.95Now: $7.00Was: $10.95 -
On Sale
SUPERSPROX Edge Rear Sprocket Insert - Gold RACD48642GLD
SUPERSPROX
MSRP: $10.95Now: $7.00Was: $10.95Upgrade over traditional stamped steel sprockets with modern styling12102360- SKU:
- 12102360
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- UNITS:
- EACH
- COLOR/FINISH:
- GOLD
- PRODUCT NAME:
- INSERT
- TYPE:
- EDGE REAR
- RIDING STYLE:
- STREET
MSRP: $10.95Now: $7.00Was: $10.95 -
SUPERSPROX Steel Rear Sprocket - 51-Tooth RFE-245-51-BLK
SUPERSPROX
$64.95Developed on the race track to give longer system life and high performance for street and off-road applications, Using CAD designed and CNC-Laser cutting to ensure an exact fit on the wheel, Made to Supersprox high quality standards and include our...12101894- SKU:
- 12101894
- Availability:
- Ships Same Business Day
- Weight:
- 2.00 LBS
- CHAIN SIZE:
- 520
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- BLACK
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- REAR
- UNITS:
- EACH
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 51
$64.95 -
SUPERSPROX Steel Rear Sprocket - 52-Tooth RFE-245-52-BLK
SUPERSPROX
$64.95Developed on the race track to give longer system life and high performance for street and off-road applications, Using CAD designed and CNC-Laser cutting to ensure an exact fit on the wheel, Made to Supersprox high quality standards and include our...12101895- SKU:
- 12101895
- Availability:
- Ships Same Business Day
- Weight:
- 2.00 LBS
- MATERIAL:
- STEEL
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- REAR
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 52
- UNITS:
- EACH
- CHAIN SIZE:
- 520
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- STREET
$64.95 -
SUPERSPROX Steel Rear Sprocket - 45-Tooth RFE-301-45-BLK
SUPERSPROX
$49.95Developed on the race track to give longer system life and high performance for street and off-road applications, Using CAD designed and CNC-Laser cutting to ensure an exact fit on the wheel, Made to Supersprox high quality standards and include our...12101896- SKU:
- 12101896
- Availability:
- Ships Same Business Day
- Weight:
- 1.55 LBS
- CHAIN SIZE:
- 520
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- UNITS:
- EACH
- COLOR/FINISH:
- BLACK
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- TOOTH COUNT:
- 45
- TYPE:
- REAR
$49.95 -
SUPERSPROX Stealth Rear Sprocket - 50-Tooth - Gold - Honda RST-210-50-GLD
SUPERSPROX
$119.95Supersprox-Stealth gives you longer system life without compromising weight, Steel teeth last 4 times longer than aluminum, Pound-for-pound, the strongest sprocket on the market, The aluminum core is 70% lighter than steel, Forging rivets into the...12101971- SKU:
- 12101971
- Availability:
- Ships Same Business Day
- Weight:
- 2.00 LBS
- COLOR/FINISH:
- STEALTH
- MATERIAL:
- STEEL
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 50
- 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
$119.95 -
SUPERSPROX Rear Sprocket - Blue - Yamaha - 51-Tooth RAL-245-51 BLU
SUPERSPROX
$69.95Made from 7075-T6 aluminum for high strength, Fully CNC machined for a perfect fit, Grooved teeth prevent dirt build up, helping to maximize sprocket and chain life, Finished with durable anodizing and great colors, The lightest and strongest aluminum...12111935- SKU:
- 12111935
- Availability:
- Ships Same Business Day
- Weight:
- 1.20 LBS
- CHAIN SIZE:
- 520
- COLOR/FINISH:
- BLUE
- MATERIAL:
- 7075-T6 ALUMINUM
- RIDING STYLE:
- STREET
- MODEL:
- ALUMINUM
- UNITS:
- EACH
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 51
- RIDING STYLE:
- OFF-ROAD
$69.95 -
SUPERSPROX Stealth Rear Sprocket - 52-Tooth - Gold - Yamaha RST-245-52-GLD
SUPERSPROX
$119.95Supersprox-Stealth gives you longer system life without compromising weight, Steel teeth last 4 times longer than aluminum, Pound-for-pound, the strongest sprocket on the market, The aluminum core is 70% lighter than steel, Forging rivets into the...12101984- SKU:
- 12101984
- Availability:
- Ships Same Business Day
- Weight:
- 2.00 LBS
- CHAIN SIZE:
- 520
- MATERIAL:
- ALUMINUM
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- STREET
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 52
- UNITS:
- EACH
- COLOR/FINISH:
- GOLD
- COLOR/FINISH:
- STEALTH
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- REAR
$119.95 -
MOOSE RACING Dual Sprocket - Silver - 48 Tooth 1210-251-48-11X
MOOSE RACING
$69.95Designed 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, Self-cleaning mud grooves between each tooth to prevent dirt...12101476- SKU:
- 12101476
- Availability:
- Ships Same Business Day
- Weight:
- 1.70 LBS
- 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
- UNITS:
- EACH
- COLOR/FINISH:
- SILVER
- MATERIAL:
- 7075-T6 ALUMINUM INNER RING
- RIDING STYLE:
- OFF-ROAD
- TOOTH COUNT:
- 48
$69.95 -
MOOSE RACING Dual Sprocket - Black - 51 Tooth 1210-460-51-10X
MOOSE RACING
$69.95Designed 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, Self-cleaning mud grooves between each tooth to prevent dirt...12101496- SKU:
- 12101496
- Availability:
- Ships Same Business Day
- Weight:
- 1.80 LBS
- CHAIN SIZE:
- 520
- MATERIAL:
- HEAVY-DUTY STEEL OUTER RING
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- COLOR/FINISH:
- BLACK
- MATERIAL:
- 7075-T6 ALUMINUM INNER RING
- RIDING STYLE:
- OFF-ROAD
- MOUNTING POSITION:
- REAR
- UNITS:
- EACH
- PRODUCT NAME:
- SPROCKET
- STYLE:
- DUAL
- TOOTH COUNT:
- 51
$69.95 -
JT SPROCKETS Sprocket - Rear - Honda - 50-Tooth JTR1204.50
JT SPROCKETS
$25.03Computer designed to achieve ultimate strength at minimum weight, JT combines leading-edge technology with top materials to produce the ultimate quality sprocket range with unbeatable value, Every sprocket meets or exceeds the highest possible quality...JTR120450- SKU:
- JTR120450
- Availability:
- Ships Same Business Day
- Weight:
- 2.30 LBS
- UNITS:
- EACH
- CHAIN SIZE:
- 428
- MOUNTING POSITION:
- REAR
- MATERIAL:
- STEEL
- MODEL:
- HONDA
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- OFF-ROAD
- TOOTH COUNT:
- 50
$25.03 -
JT SPROCKETS Rear Sprocket - Honda - Black - 47 Tooth JTA210.47BLK
JT SPROCKETS
$37.38Computer-designed to achieve ultimate strength at minimum weight, JT combines leading-edge technology with top materials to produce the ultimate quality sprocket range with unbeatable value, Every sprocket meets or exceeds the highest possible quality...12112567- SKU:
- 12112567
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
- MATERIAL:
- 7075-T6 ALUMINUM
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- OFF-ROAD
- COLOR/FINISH:
- BLACK
- TYPE:
- DRIVE
- UNITS:
- EACH
- CHAIN SIZE:
- 520
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- STREET
- TOOTH COUNT:
- 47
$37.38 -
JT SPROCKETS Sprocket - Rear - Kawasaki/Suzuki - 49-Tooth JTR462.49
JT SPROCKETS
$24.98Computer designed to achieve ultimate strength at minimum weight, JT combines leading-edge technology with top materials to produce the ultimate quality sprocket range with unbeatable value, Every sprocket meets or exceeds the highest possible quality...JTR46249- SKU:
- JTR46249
- Availability:
- Ships Same Business Day
- Weight:
- 1.90 LBS
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- CHAIN SIZE:
- 428
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 49
- UNITS:
- EACH
- MOUNTING POSITION:
- REAR
$24.98 -
JT SPROCKETS Rear Sprocket - Honda - Red - 48 Tooth JTA210.48RED
JT SPROCKETS
$37.38Computer-designed to achieve ultimate strength at minimum weight, JT combines leading-edge technology with top materials to produce the ultimate quality sprocket range with unbeatable value, Every sprocket meets or exceeds the highest possible quality...12112569- SKU:
- 12112569
- Availability:
- Ships Same Business Day
- Weight:
- 0.95 LBS
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- TOOTH COUNT:
- 48
- TYPE:
- REAR
- COLOR/FINISH:
- RED
- RIDING STYLE:
- STREET
- CHAIN SIZE:
- 520
- MATERIAL:
- 7075-T6 ALUMINUM
- MOUNTING POSITION:
- REAR
$37.38 -
JT SPROCKETS Rear Sprocket - Honda - Red - 49 Tooth JTA210.49RED
JT SPROCKETS
$38.88Computer-designed to achieve ultimate strength at minimum weight, JT combines leading-edge technology with top materials to produce the ultimate quality sprocket range with unbeatable value, Every sprocket meets or exceeds the highest possible quality...12112570- SKU:
- 12112570
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
- CHAIN SIZE:
- 520
- MOUNTING POSITION:
- REAR
- MATERIAL:
- 7075-T6 ALUMINUM
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- OFF-ROAD
- TOOTH COUNT:
- 49
- COLOR/FINISH:
- RED
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- TYPE:
- DRIVE
- UNITS:
- EACH
$38.88
