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
-
JT SPROCKETS Rear Sprocket - Aluminum - 51 Tooth - Gold - KX 250/X JTA460.51GLD
JT SPROCKETS
$41.43Lightweight aluminum construction reduces unsprung weight and improves acceleration response, while the self-cleaning design minimizes mud and debris buildup during aggressive riding. CNC machining and aviation-grade materials ensure this sprocket...12112809- SKU:
- 12112809
- Availability:
- Ships Same Business Day
- Weight:
- 0.96 LBS
$41.43 -
JT SPROCKETS Rear Sprocket - Aluminum - 50 Tooth - Gold - Kawasaki JTA460.50GLD
JT SPROCKETS
$40.35A rear sprocket is fundamental to your bike's acceleration and top-end performance—get the wrong tooth count, and you're leaving power on the table. The JT SPROCKETS 50-tooth aluminum sprocket delivers the perfect balance of lightweight construction and...12112843- SKU:
- 12112843
- Availability:
- Ships Same Business Day
- Weight:
- 0.93 LBS
$40.35 -
JT SPROCKETS Rear Sprocket - Aluminum - 49 Tooth - Red - Gas Gas/Husqvarna/KTM JTA895.49RED
JT SPROCKETS
$35.18A worn or mismatched rear sprocket directly impacts your bike's acceleration, top-end speed, and overall drivetrain efficiency. The JT Sprockets 49-tooth aluminum sprocket delivers the durability and precision fit you need to maintain peak performance...12112852- SKU:
- 12112852
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
$35.18 -
Renthal Rear Sprocket 52 Tooth Black Aluminum for KTM Husqvarna Gas Gas 224U-520-52GPBK
RENTHAL
$99.82If you're running a KTM, Husqvarna, or Gas Gas in competitive or high-demand riding, your rear sprocket needs to deliver consistent power transfer without unnecessary weight penalty. The Renthal 52-tooth rear sprocket cuts unsprung weight by 66% compared...12112808- SKU:
- 12112808
- Availability:
- Ships Same Business Day
- Weight:
- 1.40 LBS
$99.82 -
Renthal 50 Tooth Aluminum Rear Sprocket for Kawasaki 184U-520-50P-HA
RENTHAL
$99.82If you're serious about maximizing acceleration and reducing unsprung weight, a lightweight aluminum sprocket is one of the highest-return upgrades you can make. The Renthal 50-tooth sprocket cuts rotational mass by 66% compared to steel, translating...12112881- SKU:
- 12112881
- Availability:
- Ships Same Business Day
- Weight:
- 1.19 LBS
$99.82 -
JT SPROCKETS Sprocket - Rear - 43-Tooth JTR822.43
JT SPROCKETS
$32.15A properly matched rear sprocket is fundamental to optimizing your bike's acceleration, top-end speed, and overall drivetrain efficiency. The JT Sprockets 43-tooth rear sprocket delivers the precision engineering and durability you need for consistent...JTR82243- SKU:
- JTR82243
- Availability:
- Ships Same Business Day
- Weight:
- 1.70 LBS
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- CHAIN SIZE:
- 520
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- TOOTH COUNT:
- 43
- PRODUCT NAME:
- SPROCKET
- MOUNTING POSITION:
- REAR
$32.15 -
MOOSE RACING Dual Sprocket - Black - 49 Tooth 1210-251-49-10X
MOOSE RACING
$69.95If you're running a rear sprocket that can't keep pace with your riding demands, you're leaving performance on the table. The MOOSE RACING Dual Sprocket combines the durability of steel with the weight savings of aluminum, giving you a component that...12101478- SKU:
- 12101478
- Availability:
- Ships Same Business Day
- Weight:
- 1.75 LBS
- CHAIN SIZE:
- 520
- MATERIAL:
- HEAVY-DUTY STEEL OUTER RING
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- COLOR/FINISH:
- BLACK
- MATERIAL:
- 7075-T6 ALUMINUM INNER RING
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- PRODUCT NAME:
- SPROCKET
- STYLE:
- DUAL
- TOOTH COUNT:
- 49
$69.95 -
MOOSE RACING Dual Sprocket - Silver - 49 Tooth 1210-251-49-11X
MOOSE RACING
$69.95A rear sprocket needs to survive extreme loads and harsh conditions without sacrificing weight—this MOOSE RACING dual sprocket delivers both. The hybrid construction pairs a lightweight 7075 T6 aluminum inner ring with a durable steel outer ring, giving...12101479- SKU:
- 12101479
- Availability:
- Ships Same Business Day
- Weight:
- 1.75 LBS
- CHAIN SIZE:
- 520
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- MATERIAL:
- HEAVY-DUTY STEEL OUTER RING
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- STYLE:
- DUAL
- TOOTH COUNT:
- 49
- COLOR/FINISH:
- SILVER
- MATERIAL:
- 7075-T6 ALUMINUM INNER RING
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
$69.95 -
MOOSE RACING Dual Sprocket - Blue - 49 Tooth 1210-251-49-12X
MOOSE RACING
$69.95A dual-material sprocket design engineered to deliver the durability of steel without the weight penalty—ideal for riders who demand consistent power transfer and extended service life. The hybrid construction of 7075 T6 aluminum inner ring and hardened...12101480- SKU:
- 12101480
- Availability:
- Ships Same Business Day
- Weight:
- 1.75 LBS
- COLOR/FINISH:
- BLUE
- 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
- MATERIAL:
- 7075-T6 ALUMINUM INNER RING
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
$69.95Qty in Cart: 0Quantity:Price:$69.95Subtotal: -
MOOSE RACING Dual Sprocket MSE - Silver - 50-Tooth 1210-251-50-11X
MOOSE RACING
$69.95A rear sprocket needs to handle extreme torque, mud, and repeated stress cycles without sacrificing weight. The MOOSE RACING Dual Sprocket MSE delivers the durability of steel with the lightweight advantage of aluminum by combining 7075 T6 aluminum inner...12101482- SKU:
- 12101482
- Availability:
- Ships Same Business Day
- Weight:
- 1.75 LBS
- MATERIAL:
- HEAVY-DUTY STEEL OUTER RING
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- STYLE:
- DUAL
- TOOTH COUNT:
- 50
- CHAIN SIZE:
- 520
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- COLOR/FINISH:
- SILVER
- MATERIAL:
- 7075-T6 ALUMINUM INNER RING
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
$69.95Qty in Cart: 0Quantity:Price:$69.95Subtotal: -
MOOSE RACING Dual Sprocket MSE - Black - 49-Tooth 1210-822-49-10X
MOOSE RACING
$69.95The MOOSE RACING Dual Sprocket MSE delivers the lightweight performance of aluminum with the durability of steel—eliminating the compromises that come with single-material sprockets. The 7075 T6 inner ring keeps rotational weight to a minimum, while the...12101510- SKU:
- 12101510
- Availability:
- Ships Same Business Day
- Weight:
- 1.75 LBS
- MATERIAL:
- 7075-T6 ALUMINUM INNER RING
- UNITS:
- EACH
- CHAIN SIZE:
- 520
- MATERIAL:
- HEAVY-DUTY STEEL OUTER RING
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- COLOR/FINISH:
- BLACK
- STYLE:
- DUAL
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 49
$69.95Qty in Cart: 0Quantity:Price:$69.95Subtotal: -
MOOSE RACING Dual Sprocket MSE - Silver - 49-Tooth 1210-822-49-11X
MOOSE RACING
$69.95A lightweight rear sprocket that doesn't compromise on durability—the MOOSE RACING Dual Sprocket MSE delivers the acceleration of aluminum with the longevity of steel. If you're pushing your bike hard on the track or trail, you need a sprocket that can...12101511- SKU:
- 12101511
- Availability:
- Ships Same Business Day
- Weight:
- 1.75 LBS
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 49
- CHAIN SIZE:
- 520
- MATERIAL:
- HEAVY-DUTY STEEL OUTER RING
- MOUNTING POSITION:
- REAR
- COLOR/FINISH:
- SILVER
- STYLE:
- DUAL
- MATERIAL:
- 7075-T6 ALUMINUM INNER RING
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- UNITS:
- EACH
$69.95 -
MOOSE RACING Dual Sprocket MSE - Silver - 51-Tooth 1210-897-51-11X
MOOSE RACING
$69.95When every gear transition matters, a lightweight yet durable sprocket becomes essential to maintaining power delivery and reducing rotational mass. The MOOSE RACING Dual Sprocket MSE combines a forged 7075 T6 aluminum inner ring with a heavy-duty steel...12101524- SKU:
- 12101524
- Availability:
- Ships Same Business Day
- Weight:
- 1.85 LBS
- COLOR/FINISH:
- SILVER
- 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
- TOOTH COUNT:
- 51
- UNITS:
- EACH
- PRODUCT NAME:
- SPROCKET
- STYLE:
- DUAL
$69.95 -
MOOSE RACING Dual Sprocket MSE - Black - 52-Tooth 1210-897-52-10X
MOOSE RACING
$69.95If you're running a 52-tooth rear sprocket, you need a component that can handle the demands of high-RPM racing without sacrificing weight or durability. The MOOSE RACING Dual Sprocket MSE combines a lightweight 7075 T6 aluminum inner ring with a...12101526- SKU:
- 12101526
- Availability:
- Ships Same Business Day
- Weight:
- 1.95 LBS
- CHAIN SIZE:
- 520
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- MATERIAL:
- HEAVY-DUTY STEEL OUTER RING
- MOUNTING POSITION:
- REAR
- TOOTH COUNT:
- 52
- PRODUCT NAME:
- SPROCKET
- STYLE:
- DUAL
- UNITS:
- EACH
- COLOR/FINISH:
- BLACK
- MATERIAL:
- 7075-T6 ALUMINUM INNER RING
- RIDING STYLE:
- OFF-ROAD
$69.95Qty in Cart: 0Quantity:Price:$69.95Subtotal: -
MOOSE RACING Dual Sprocket - Black - 50 Tooth 1210-210-50-10X
MOOSE RACING
$69.95A rear sprocket needs to handle extreme torque and abrasive conditions without adding unnecessary weight to your drivetrain. The MOOSE RACING Dual Sprocket combines a lightweight 7075 T6 aluminum inner ring with a durable steel outer ring, giving you the...12101466- SKU:
- 12101466
- Availability:
- Ships Same Business Day
- Weight:
- 1.70 LBS
- MATERIAL:
- HEAVY-DUTY STEEL OUTER RING
- MOUNTING POSITION:
- REAR
- COLOR/FINISH:
- BLACK
- MATERIAL:
- 7075-T6 ALUMINUM INNER RING
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- PRODUCT NAME:
- SPROCKET
- STYLE:
- DUAL
- TOOTH COUNT:
- 50
- CHAIN SIZE:
- 520
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
$69.95Qty in Cart: 0Quantity:Price:$69.95Subtotal: -
MOOSE RACING Dual Sprocket - Silver - 51 Tooth 1210-210-51-11X
MOOSE RACING
$69.95A lightweight rear sprocket that doesn't compromise on durability—the MOOSE RACING Dual Sprocket combines 7075 T6 aluminum with heavy-duty steel construction to give you superior performance without the weight penalty of conventional steel options...12101470- SKU:
- 12101470
- Availability:
- Ships Same Business Day
- Weight:
- 1.81 LBS
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 51
- COLOR/FINISH:
- SILVER
- MATERIAL:
- 7075-T6 ALUMINUM INNER RING
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- CHAIN SIZE:
- 520
- MATERIAL:
- HEAVY-DUTY STEEL OUTER RING
- MOUNTING POSITION:
- REAR
- STYLE:
- DUAL
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- TYPE:
- DRIVE
$69.95 -
MOOSE RACING Dual Sprocket - Red - 51 Tooth 1210-210-51-13X
MOOSE RACING
$69.95A lightweight rear sprocket that combines the durability of steel with the weight savings of aluminum—the MOOSE RACING Dual Sprocket delivers the performance advantage you need without compromise. Whether you're racing in mud, sand, or on the track, the...12101471- SKU:
- 12101471
- Availability:
- Ships Same Business Day
- Weight:
- 1.86 LBS
- COLOR/FINISH:
- RED
- MATERIAL:
- 7075-T6 ALUMINUM INNER RING
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- PRODUCT NAME:
- SPROCKET
- STYLE:
- DUAL
- TOOTH COUNT:
- 51
- CHAIN SIZE:
- 520
- MATERIAL:
- HEAVY-DUTY STEEL OUTER RING
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
$69.95 -
MOOSE RACING Dual Sprocket - Black - 48 Tooth 1210-251-48-10X
MOOSE RACING
$69.95If you're running a rear sprocket that can't handle the demands of aggressive riding or racing conditions, you're leaving performance on the table. The MOOSE RACING Dual Sprocket combines the durability of steel with the weight savings of aluminum,...12101475- SKU:
- 12101475
- Availability:
- Ships Same Business Day
- Weight:
- 1.70 LBS
- PRODUCT NAME:
- SPROCKET
- STYLE:
- DUAL
- TOOTH COUNT:
- 48
- CHAIN SIZE:
- 520
- MATERIAL:
- HEAVY-DUTY STEEL OUTER RING
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- UNITS:
- EACH
- COLOR/FINISH:
- BLACK
- MATERIAL:
- 7075-T6 ALUMINUM INNER RING
- RIDING STYLE:
- OFF-ROAD
$69.95Qty in Cart: 0Quantity:Price:$69.95Subtotal: -
MOOSE RACING Dual Sprocket - Blue - 48 Tooth 1210-251-48-12X
MOOSE RACING
$69.95Rear sprocket performance directly impacts acceleration, top-end speed, and drivetrain efficiency—and cheap aluminum sprockets wear out fast. The MOOSE RACING Dual Sprocket combines the lightweight advantages of premium 7075 T6 aluminum with the...12101477- SKU:
- 12101477
- Availability:
- Ships Same Business Day
- Weight:
- 1.70 LBS
- PRODUCT NAME:
- SPROCKET
- MATERIAL:
- HEAVY-DUTY STEEL OUTER RING
- MOUNTING POSITION:
- REAR
- COLOR/FINISH:
- BLUE
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- DUAL
- TOOTH COUNT:
- 48
- CHAIN SIZE:
- 520
- MATERIAL:
- 7075-T6 ALUMINUM INNER RING
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- UNITS:
- EACH
$69.95 -
MOOSE RACING Dual Sprocket - Silver - 48 Tooth 1210-210-48-11X
MOOSE RACING
$69.95A rear sprocket needs to handle constant torque transfer while staying light enough to minimize rotational mass—and this MOOSE RACING dual-material design does exactly that. By combining a 7075 T6 aluminum inner ring with a heavy-duty steel outer ring,...12101461- SKU:
- 12101461
- Availability:
- Ships Same Business Day
- Weight:
- 1.70 LBS
- MATERIAL:
- 7075-T6 ALUMINUM INNER RING
- UNITS:
- EACH
- PRODUCT NAME:
- SPROCKET
- COLOR/FINISH:
- SILVER
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- DUAL
- TOOTH COUNT:
- 48
- CHAIN SIZE:
- 520
- MATERIAL:
- HEAVY-DUTY STEEL OUTER RING
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
$69.95
