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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JT SPROCKETS Sprocket - Rear - Honda - 38-Tooth JTR210.38
JT SPROCKETS
$27.75JT SPROCKETS Sprocket Rear Honda 38-Tooth JTR210.38Computer-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...12100630- SKU:
- 12100630
- Availability:
- Ships Same Business Day
- Weight:
- 1.20 LBS
- CHAIN SIZE:
- 520
- MODEL:
- HONDA
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- TOOTH COUNT:
- 38
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- SPROCKET
- UNITS:
- EACH
$27.75 -
JT SPROCKETS Sprocket - Rear - Honda - 39-Tooth JTR210.39
JT SPROCKETS
$27.75JT SPROCKETS Sprocket Rear Honda 39-Tooth JTR210.39Computer-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...12100631- SKU:
- 12100631
- Availability:
- Ships Same Business Day
- Weight:
- 1.37 LBS
- CHAIN SIZE:
- 520
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- UNITS:
- EACH
- PRODUCT NAME:
- SPROCKET
- MATERIAL:
- STEEL
- MODEL:
- HONDA
- RIDING STYLE:
- OFF-ROAD
- TOOTH COUNT:
- 39
- MOUNTING POSITION:
- REAR
$27.75 -
JT SPROCKETS Sprocket - Rear - Kawasaki - 39-Tooth JTR460.39
JT SPROCKETS
$31.08JT SPROCKETS Sprocket Rear Kawasaki 39-Tooth JTR460.39Computer 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...12100640- SKU:
- 12100640
- Availability:
- Ships Same Business Day
- Weight:
- 1.44 LBS
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- CHAIN SIZE:
- 520
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- MATERIAL:
- STEEL
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 39
$31.08 -
JT SPROCKETS Sprocket - Rear - Kawasaki - 42-Tooth JTR460.42
JT SPROCKETS
$31.08JT SPROCKETS Sprocket Rear Kawasaki 42-Tooth JTR460.42Computer 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...12100641- SKU:
- 12100641
- Availability:
- Ships Same Business Day
- Weight:
- 1.88 LBS
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- CHAIN SIZE:
- 520
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- MATERIAL:
- STEEL
- TOOTH COUNT:
- 42
$31.08 -
JT SPROCKETS Sprocket - Rear - Kawasaki - 51-Tooth JTR797.51
JT SPROCKETS
$23.30JT SPROCKETS Sprocket Rear Kawasaki 51-Tooth JTR797.51Computer 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...12100654- SKU:
- 12100654
- Availability:
- Ships Same Business Day
- Weight:
- 1.62 LBS
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- MOUNTING POSITION:
- REAR
- CHAIN SIZE:
- 428
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 51
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
$23.30 -
JT SPROCKETS Sprocket - Rear - Kawasaki - 57-Tooth JTR797.57
JT SPROCKETS
$29.15JT SPROCKETS Sprocket Rear Kawasaki 57-Tooth JTR797.57Computer 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...12100655- SKU:
- 12100655
- Availability:
- Ships Same Business Day
- Weight:
- 2.65 LBS
- MOUNTING POSITION:
- REAR
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- CHAIN SIZE:
- 428
- PRODUCT NAME:
- SPROCKET
- UNITS:
- EACH
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- TOOTH COUNT:
- 57
$29.15 -
JT SPROCKETS Sprocket - Honda - 45-Tooth JTR301.45
JT SPROCKETS
$31.33JT SPROCKETS Sprocket Honda 45-Tooth JTR301.45Computer-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...12100508- SKU:
- 12100508
- Availability:
- Ships Same Business Day
- Weight:
- 1.65 LBS
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 45
- CHAIN SIZE:
- 520
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
$31.33 -
JT SPROCKETS Sprocket - Honda - 48-Tooth JTR301.48
JT SPROCKETS
$33.88JT SPROCKETS Sprocket Honda 48-Tooth JTR301.48Computer-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...12100509- SKU:
- 12100509
- Availability:
- Ships Same Business Day
- Weight:
- 1.73 LBS
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- MATERIAL:
- STEEL
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 48
- CHAIN SIZE:
- 520
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
$33.88 -
JT SPROCKETS Sprocket - Rear - Honda - 36-Tooth JTR1214.36
JT SPROCKETS
$17.78JT SPROCKETS Sprocket Rear Honda 36-Tooth JTR1214.36Computer 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...JTR121436- SKU:
- JTR121436
- Availability:
- Ships Same Business Day
- Weight:
- 1.10 LBS
- TOOTH COUNT:
- 36
- MOUNTING POSITION:
- REAR
- UNITS:
- EACH
- CHAIN SIZE:
- 420
- MATERIAL:
- STEEL
- MODEL:
- HONDA
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- SPROCKET
$17.78 -
JT SPROCKETS Sprocket - Rear - Honda - 47-Tooth JTR1214.47
JT SPROCKETS
$18.48JT SPROCKETS Sprocket Rear Honda 47-Tooth JTR1214.47Computer 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...JTR121447- SKU:
- JTR121447
- Availability:
- Ships Same Business Day
- Weight:
- 1.60 LBS
- MODEL:
- HONDA
- MOUNTING POSITION:
- REAR
- TOOTH COUNT:
- 47
- CHAIN SIZE:
- 420
- PRODUCT NAME:
- SPROCKET
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
$18.48 -
JT SPROCKETS Sprocket - Rear - Honda - 40-Tooth JTR1351.40
JT SPROCKETS
$28.78JT SPROCKETS Sprocket Rear Honda 40-Tooth JTR1351.40Made from aviation-grade 7075-T6 aluminum alloy, optimal lightweight design and CNC-machined for performance and lifespan, Manufactured from the best materials with a special self-cleaning design, and...JTR135140- SKU:
- JTR135140
- Availability:
- Ships Same Business Day
- Weight:
- 1.65 LBS
- CHAIN SIZE:
- 520
- COLOR/FINISH:
- BLACK
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- UNITS:
- EACH
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- TOOTH COUNT:
- 40
$28.78 -
JT SPROCKETS Sprocket - Rear - Honda - 40-Tooth JTR1352.40
JT SPROCKETS
$28.78JT SPROCKETS Sprocket Rear Honda 40-Tooth JTR1352.40Made from aviation-grade 7075-T6 aluminum alloy, optimal lightweight design and CNC-machined for performance and lifespan, Manufactured from the best materials with a special self-cleaning design, and...JTR135240- SKU:
- JTR135240
- Availability:
- Ships Same Business Day
- Weight:
- 1.60 LBS
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- CHAIN SIZE:
- 520
- TOOTH COUNT:
- 40
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- MODEL:
- HONDA
- UNITS:
- EACH
$28.78 -
JT SPROCKETS Sprocket - Rear - Honda - 40-Tooth JTR1353.40
JT SPROCKETS
$27.00JT SPROCKETS Sprocket Rear Honda 40-Tooth JTR1353.40Made from aviation-grade 7075-T6 aluminum alloy, optimal lightweight design and CNC-machined for performance and lifespan, Manufactured from the best materials with a special self-cleaning design, and...JTR135340- SKU:
- JTR135340
- Availability:
- Ships Same Business Day
- Weight:
- 1.70 LBS
- RIDING STYLE:
- OFF-ROAD
- TOOTH COUNT:
- 40
- MATERIAL:
- STEEL
- UNITS:
- EACH
- CHAIN SIZE:
- 520
- MODEL:
- HONDA
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
$27.00 -
JT SPROCKETS Sprocket - Rear - Honda - 38-Tooth JTR1354.38
JT SPROCKETS
$27.38JT SPROCKETS Sprocket Rear Honda 38-Tooth JTR1354.38Made from aviation-grade 7075-T6 aluminum alloy, optimal lightweight design and CNC-machined for performance and lifespan, Manufactured from the best materials with a special self-cleaning design, and...JTR135438- SKU:
- JTR135438
- Availability:
- Ships Same Business Day
- Weight:
- 1.30 LBS
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- COLOR/FINISH:
- BLACK
- CHAIN SIZE:
- 520
- TOOTH COUNT:
- 38
- UNITS:
- EACH
$27.38 -
JT SPROCKETS Sprocket - Rear - Honda - 50-Tooth JTR1355.50
JT SPROCKETS
$26.73JT SPROCKETS Sprocket Rear Honda 50-Tooth JTR1355.50Made from aviation-grade 7075-T6 aluminum alloy, optimal lightweight design and CNC-machined for performance and lifespan, Manufactured from the best materials with a special self-cleaning design, and...JTR135550- SKU:
- JTR135550
- Availability:
- Ships Same Business Day
- Weight:
- 2.00 LBS
- MATERIAL:
- STEEL
- MODEL:
- HONDA
- CHAIN SIZE:
- 428
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 50
- RIDING STYLE:
- ATV
- UNITS:
- EACH
$26.73 -
JT SPROCKETS Sprocket - Rear - Honda - 42-Tooth JTR1486.42
JT SPROCKETS
$31.40JT SPROCKETS Sprocket Rear Honda 42-Tooth JTR1486.42Made from aviation-grade 7075-T6 aluminum alloy, optimal lightweight design and CNC-machined for performance and lifespan, Manufactured from the best materials with a special self-cleaning design, and...JTR148642- SKU:
- JTR148642
- Availability:
- Ships Same Business Day
- Weight:
- 1.90 LBS
- PRODUCT NAME:
- SPROCKET
- MATERIAL:
- STEEL
- MODEL:
- HONDA
- TOOTH COUNT:
- 42
- CHAIN SIZE:
- 520
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- ATV
- UNITS:
- EACH
$31.40 -
JT SPROCKETS Sprocket - Rear - Yamaha - 54-Tooth JTR1843.54
JT SPROCKETS
$30.33JT SPROCKETS Sprocket Rear Yamaha 54-Tooth JTR1843.54Computer 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...12120114- SKU:
- 12120114
- Availability:
- Ships Same Business Day
- Weight:
- 2.09 LBS
- MOUNTING POSITION:
- REAR
- TOOTH COUNT:
- 54
- MODEL:
- YAMAHA
- CHAIN SIZE:
- 428
- PRODUCT NAME:
- SPROCKET
- UNITS:
- EACH
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
$30.33 -
JT SPROCKETS Sprocket - Rear - Honda - 50-Tooth JTR215.50
JT SPROCKETS
$21.20JT SPROCKETS Sprocket Rear Honda 50-Tooth JTR215.50Computer 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...12120116- SKU:
- 12120116
- Availability:
- Ships Same Business Day
- Weight:
- 1.71 LBS
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 50
- UNITS:
- EACH
- CHAIN SIZE:
- 420
- MODEL:
- HONDA
- MOUNTING POSITION:
- REAR
$21.20 -
JT SPROCKETS Sprocket - Rear - Honda - 50-Tooth JTR217.50
JT SPROCKETS
$25.58JT SPROCKETS Sprocket Rear Honda 50-Tooth JTR217.50Computer 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...12120118- SKU:
- 12120118
- Availability:
- Ships Same Business Day
- Weight:
- 2.09 LBS
- MATERIAL:
- STEEL
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 50
- CHAIN SIZE:
- 428
- UNITS:
- EACH
- MODEL:
- HONDA
- RIDING STYLE:
- OFF-ROAD
- MOUNTING POSITION:
- REAR
$25.58 -
JT SPROCKETS Sprocket - Rear - Kawasaki - 39-Tooth JTR1826.39
JT SPROCKETS
$27.83JT SPROCKETS Sprocket Rear Kawasaki 39-Tooth JTR1826.39Made from aviation-grade 7075-T6 aluminum alloy, optimal lightweight design and CNC-machined for performance and lifespan, Manufactured from the best materials with a special self-cleaning design,...JTR182639- SKU:
- JTR182639
- Availability:
- Ships Same Business Day
- Weight:
- 1.90 LBS
- MATERIAL:
- STEEL
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- CHAIN SIZE:
- 520
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- STREET
- TOOTH COUNT:
- 39
$27.83
