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
-
MOOSE RACING Dual Sprocket - Black - 50 Tooth 1210-251-50-10X
MOOSE RACING
$69.95If you're running a rear sprocket that can't handle the demands of aggressive riding or racing, you're leaving performance on the table. The MOOSE RACING Dual Sprocket combines the durability of steel with the lightweight advantage of premium aluminum,...12101481- SKU:
- 12101481
- Availability:
- Ships Same Business Day
- Weight:
- 1.75 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 - 50 Tooth 1210-460-50-15X
MOOSE RACING
$69.95A rear sprocket must handle extreme torque and repeated impact without sacrificing weight or durability—this is where most standard aluminum sprockets fail. The MOOSE RACING Dual Sprocket combines a lightweight 7075 T6 aluminum inner ring with a...12101495- SKU:
- 12101495
- Availability:
- Ships Same Business Day
- Weight:
- 1.70 LBS
- PRODUCT NAME:
- SPROCKET
- STYLE:
- DUAL
- TOOTH COUNT:
- 50
- MATERIAL:
- 7075-T6 ALUMINUM INNER RING
- RIDING STYLE:
- OFF-ROAD
- COLOR/FINISH:
- GREEN
- UNITS:
- EACH
- CHAIN SIZE:
- 520
- MATERIAL:
- HEAVY-DUTY STEEL OUTER RING
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
$69.95Qty in Cart: 0Quantity:Price:$69.95Subtotal: -
MOOSE RACING Dual Sprocket MSE - Orange - 48-Tooth 1210-897-48-14X
MOOSE RACING
$69.95The MOOSE RACING Dual Sprocket MSE delivers the durability advantage you need when standard aluminum sprockets wear prematurely. By combining a lightweight 7075 T6 aluminum inner ring with a heavy-duty steel outer ring, this 48-tooth sprocket gives you...12101516- SKU:
- 12101516
- Availability:
- Ships Same Business Day
- Weight:
- 1.70 LBS
- COLOR/FINISH:
- ORANGE
- MATERIAL:
- HEAVY-DUTY STEEL OUTER RING
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- STYLE:
- DUAL
- CHAIN SIZE:
- 520
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- MATERIAL:
- 7075-T6 ALUMINUM INNER RING
- RIDING STYLE:
- OFF-ROAD
- TOOTH COUNT:
- 48
- UNITS:
- EACH
$69.95Qty in Cart: 0Quantity:Price:$69.95Subtotal: -
MOOSE RACING Dual Sprocket MSE - Black - 49-Tooth 1210-897-49-10X
MOOSE RACING
$69.95A rear sprocket needs to balance durability with minimal rotational mass—this is where the Moose Racing Dual Sprocket excels. By combining a 7075 T6 aluminum inner ring with a heavy-duty steel outer ring, you get the lightweight feel of aluminum without...12101517- SKU:
- 12101517
- 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
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- TYPE:
- DRIVE
$69.95Qty in Cart: 0Quantity:Price:$69.95Subtotal: -
JT SPROCKETS Sprocket - Rear - Yamaha - 48-Tooth JTR1847.48
JT SPROCKETS
$32.10A worn or incorrect rear sprocket directly impacts your acceleration, top-end speed, and drivetrain efficiency. The JT Sprockets 48-tooth rear sprocket for Yamaha delivers computer-optimized tooth geometry and premium C45 high-carbon steel construction...12100628- SKU:
- 12100628
- Availability:
- Ships Same Business Day
- Weight:
- 1.39 LBS
- COLOR/FINISH:
- BLACK
- MATERIAL:
- STEEL
- TOOTH COUNT:
- 48
- TYPE:
- DRIVE
- MOUNTING POSITION:
- REAR
- CHAIN SIZE:
- 428
- PRODUCT NAME:
- SPROCKET
- UNITS:
- EACH
- RIDING STYLE:
- STREET
$32.10 -
JT SPROCKETS Rear Sprocket - KTM - Orange - 48 Tooth JTA891.48ORG
JT SPROCKETS
$32.95Computer-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...12112614- SKU:
- 12112614
- Availability:
- Ships Same Business Day
- Weight:
- 0.90 LBS
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- OFF-ROAD
- COLOR/FINISH:
- ORANGE
- MATERIAL:
- 7075-T6 ALUMINUM
- TOOTH COUNT:
- 48
- TYPE:
- REAR
- MOUNTING POSITION:
- REAR
- UNITS:
- EACH
- CHAIN SIZE:
- 520
$32.95Qty in Cart: 0Quantity:Price:$32.95Subtotal: -
JT SPROCKETS Sprocket - Rear - Kawasaki/Suzuki - 46-Tooth JTR808.46
JT SPROCKETS
$31.85Computer 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...JTR80846- SKU:
- JTR80846
- Availability:
- Ships Same Business Day
- Weight:
- 2.10 LBS
- RIDING STYLE:
- OFF-ROAD
- MATERIAL:
- STEEL
- PRODUCT NAME:
- SPROCKET
- UNITS:
- EACH
- CHAIN SIZE:
- 520
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- MOUNTING POSITION:
- REAR
- TOOTH COUNT:
- 46
$31.85 -
JT SPROCKETS Rear Sprocket - Honda - Black - 45 Tooth JTA210.45BLK
JT SPROCKETS
$35.50Computer-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...12112639- SKU:
- 12112639
- Availability:
- Ships Same Business Day
- Weight:
- 0.90 LBS
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- OFF-ROAD
- COLOR/FINISH:
- BLACK
- MATERIAL:
- 7075-T6 ALUMINUM
- TOOTH COUNT:
- 45
- TYPE:
- REAR
- CHAIN SIZE:
- 520
- MOUNTING POSITION:
- REAR
- UNITS:
- EACH
$35.50 -
JT SPROCKETS Rear Sprocket - Orange - 38 Tooth JTA897.38ORG
JT SPROCKETS
$30.35A properly sized rear sprocket is critical for optimizing your bike's acceleration, top speed, and overall powertrain efficiency. The JT Sprockets 38-tooth rear sprocket delivers the precision engineering and durability you need for both street and track...12112626- SKU:
- 12112626
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
- CHAIN SIZE:
- 520
- COLOR/FINISH:
- ORANGE
- MATERIAL:
- 7075-T6 ALUMINUM
- MOUNTING POSITION:
- REAR
- TOOTH COUNT:
- 38
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- TYPE:
- REAR
$30.35Qty in Cart: 0Quantity:Price:$30.35Subtotal: -
JT SPROCKETS Rear Sprocket - Kawasaki - Black - 48 Tooth JTA460.48BLK
JT SPROCKETS
$37.38A worn or undersized rear sprocket directly impacts acceleration, top-end speed, and overall drivetrain efficiency on your Kawasaki. The JT Sprockets 48-tooth rear sprocket delivers computer-optimized tooth geometry and premium heat-treatment to handle...12112652- SKU:
- 12112652
- Availability:
- Ships Same Business Day
- Weight:
- 0.95 LBS
- COLOR/FINISH:
- BLACK
- TOOTH COUNT:
- 48
- TYPE:
- REAR
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- CHAIN SIZE:
- 520
- MATERIAL:
- 7075-T6 ALUMINUM
- MOUNTING POSITION:
- REAR
$37.38 -
JT SPROCKETS Rear Sprocket - Black - 42-Tooth JTA897.42BLK
JT SPROCKETS
$32.20A properly sized rear sprocket is critical to maximizing acceleration and top-end performance while maintaining optimal engine RPM in your target powerband. This JT 42-tooth sprocket delivers the durability and precision required for consistent lap times...12112678- SKU:
- 12112678
- Availability:
- Ships Same Business Day
- Weight:
- 0.70 LBS
- CHAIN SIZE:
- 520
- MATERIAL:
- 7075-T6 ALUMINUM
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- TOOTH COUNT:
- 42
- TYPE:
- REAR
- UNITS:
- EACH
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- OFF-ROAD
$32.20Qty in Cart: 0Quantity:Price:$32.20Subtotal: -
JT SPROCKETS Sprocket - Rear - Kawasaki/Suzuki - 45-Tooth JTR460.45
JT SPROCKETS
$31.08Rear sprocket selection directly impacts your acceleration, top-end speed, and overall drivetrain efficiency—making it one of the most critical tuning decisions you'll make. The JT Sprockets 45-Tooth rear sprocket delivers the precision engineering and...JTR46045- SKU:
- JTR46045
- Availability:
- Ships Same Business Day
- Weight:
- 1.90 LBS
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- UNITS:
- EACH
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- TOOTH COUNT:
- 45
- CHAIN SIZE:
- 520
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
$31.08 -
SUPERSPROX Edge Rear Sprocket - Black - 43-Tooth RFA47843BLK
SUPERSPROX
$49.95If you're running mid-range performance builds or looking to shed rotational mass without breaking the bank, the SUPERSPROX Edge Rear Sprocket delivers measurable weight savings where it counts. A lighter rear sprocket reduces unsprung weight and...12102387- SKU:
- 12102387
- Availability:
- Ships Same Business Day
- Weight:
- 1.80 LBS
- COLOR/FINISH:
- BLACK
- TOOTH COUNT:
- 43
- UNITS:
- EACH
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- LIGHTWEIGHT
- MODEL:
- EDGE
- COLOR/FINISH:
- ZINC
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
$49.95 -
SUPERSPROX Edge Rear Sprocket - Black - 43-Tooth RFA48043BLK
SUPERSPROX
$49.95A rear sprocket is one of the highest-wear components on any bike, and choosing the right replacement directly impacts acceleration, fuel efficiency, and drivetrain longevity. The SUPERSPROX Edge Rear Sprocket delivers a measurable weight reduction of...12102389- SKU:
- 12102389
- Availability:
- Ships Same Business Day
- Weight:
- 2.05 LBS
- TOOTH COUNT:
- 43
- UNITS:
- EACH
- COLOR/FINISH:
- BLACK
- STYLE:
- LIGHTWEIGHT
- MODEL:
- EDGE
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- COLOR/FINISH:
- ZINC
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
$49.95 -
SUPERSPROX Edge Rear Sprocket - Black - 41-Tooth RFA48641BLK
SUPERSPROX
$49.95A lighter rear sprocket directly improves your bike's acceleration, reduces unsprung weight, and increases fuel efficiency—all critical factors whether you're chasing lap times or enjoying weekend rides. The SUPERSPROX Edge combines measurable weight...12102391- SKU:
- 12102391
- Availability:
- Ships Same Business Day
- Weight:
- 1.55 LBS
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- LIGHTWEIGHT
- TOOTH COUNT:
- 41
- COLOR/FINISH:
- BLACK
- COLOR/FINISH:
- ZINC
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- UNITS:
- EACH
- MODEL:
- EDGE
$49.95 -
SUPERSPROX Edge Rear Sprocket - Black - 42-Tooth RFA48642BLK
SUPERSPROX
$49.95Upgrading your rear sprocket is one of the most direct ways to improve acceleration and reduce unsprung weight on your bike. The SUPERSPROX Edge delivers a meaningful 5–15% weight reduction while maintaining the durability expected from a cost-effective,...12102392- SKU:
- 12102392
- Availability:
- Ships Same Business Day
- Weight:
- 2.00 LBS
- MODEL:
- EDGE
- UNITS:
- EACH
- COLOR/FINISH:
- BLACK
- COLOR/FINISH:
- ZINC
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- LIGHTWEIGHT
- TOOTH COUNT:
- 42
$49.95 -
SUPERSPROX Stealth Rear Sprocket - 48-Tooth - Gold - Beta RST-8000-48-GLD
SUPERSPROX
$119.95If you're running a high-displacement bike and want sprocket longevity without the weight penalty, the SUPERSPROX Stealth delivers a rare combination: steel teeth that outlast aluminum by 4x, paired with a 70% lighter aluminum core. This hybrid design...12102032- SKU:
- 12102032
- Availability:
- Ships Same Business Day
- Weight:
- 1.95 LBS
- CHAIN SIZE:
- 525
- MATERIAL:
- STEEL
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 48
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- REAR
- COLOR/FINISH:
- STEALTH
- MATERIAL:
- ALUMINUM
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- GOLD
- UNITS:
- EACH
$119.95 -
SUPERSPROX Stealth Rear Sprocket - 52-Tooth - Red - Beta RST-8000-52-RED
SUPERSPROX
$119.95If you're running a high-displacement bike and need sprocket durability without excess rotational mass, the SUPERSPROX Stealth delivers both. Steel teeth outlast aluminum by 4x, while the hybrid aluminum core keeps overall weight down—giving you...12102040- SKU:
- 12102040
- Availability:
- Ships Same Business Day
- Weight:
- 2.00 LBS
- CHAIN SIZE:
- 525
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- COLOR/FINISH:
- STEALTH
- MATERIAL:
- ALUMINUM
- RIDING STYLE:
- STREET
- TOOTH COUNT:
- 52
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- REAR
- COLOR/FINISH:
- RED
- UNITS:
- EACH
$119.95Qty in Cart: 0Quantity:Price:$119.95Subtotal: -
Sunstar 48T Rear Sprocket for Honda CRF250R 2004-2022 Gold 5-355948
SUNSTAR SPROCKETS
$88.95The SUNSTAR 48T Rear Sprocket is engineered to maximize power delivery and chain efficiency on your Honda CRF250R. Whether you're pushing lap times or tackling trail conditions, this sprocket's aerospace-grade construction and optimized tooth geometry...5355948- SKU:
- 5355948
- Availability:
- Ships Same Business Day
- Weight:
- 0.90 LBS
- COLOR/FINISH:
- WORKS/GOLD
- RIDING STYLE:
- OFF-ROAD
- TOOTH COUNT:
- 48
- TYPE:
- DRIVE
- CHAIN SIZE:
- 520
- MATERIAL:
- 7075-T6 ALUMINUM
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- UNITS:
- EACH
$88.95Qty in Cart: 0Quantity:Price:$88.95Subtotal: -
SUPERSPROX Steel Rear Sprocket - 48-Tooth RFE-245-48-BLK
SUPERSPROX
$54.95If you're running a chain drive system that demands reliability under sustained load, sprocket wear directly impacts your power delivery and drivetrain longevity. The SUPERSPROX 48-Tooth Steel Rear Sprocket delivers race-proven durability with a...12101891- SKU:
- 12101891
- Availability:
- Ships Same Business Day
- Weight:
- 1.85 LBS
- PRODUCT NAME:
- SPROCKET
- MATERIAL:
- STEEL
- TOOTH COUNT:
- 48
- CHAIN SIZE:
- 520
- MOUNTING POSITION:
- REAR
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- REAR
- UNITS:
- EACH
$54.95
