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 - Yamaha - 49-Tooth JTR833.49
JT SPROCKETS
$25.28Computer 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...12120120- SKU:
- 12120120
- Availability:
- Ships Same Business Day
- Weight:
- 2.28 LBS
- MOUNTING POSITION:
- REAR
- CHAIN SIZE:
- 428
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 49
- UNITS:
- EACH
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
$25.28 -
JT SPROCKETS Sprocket - Rear - Kawasaki - 40-Tooth JTR1826.40
JT SPROCKETS
$28.90Made 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 hand-finished to perfectionJTR182640- SKU:
- JTR182640
- Availability:
- Ships Same Business Day
- Weight:
- 2.00 LBS
- CHAIN SIZE:
- 520
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- STREET
- MATERIAL:
- STEEL
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- TOOTH COUNT:
- 40
$28.90 -
JT SPROCKETS Sprocket - Rear - Kawasaki - 41-Tooth JTR1826.41
JT SPROCKETS
$28.90Made 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 hand-finished to perfectionJTR182641- SKU:
- JTR182641
- Availability:
- Ships Same Business Day
- Weight:
- 2.20 LBS
- TOOTH COUNT:
- 41
- MATERIAL:
- STEEL
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- CHAIN SIZE:
- 520
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- STREET
$28.90 -
JT SPROCKETS Sprocket - Rear - Kawasaki - 42-Tooth JTR1826.42
JT SPROCKETS
$28.90Made 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 hand-finished to perfectionJTR182642- SKU:
- JTR182642
- Availability:
- Ships Same Business Day
- Weight:
- 2.30 LBS
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- MATERIAL:
- STEEL
- RIDING STYLE:
- ATV
- TOOTH COUNT:
- 42
- CHAIN SIZE:
- 520
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$28.90 -
JT SPROCKETS Sprocket - Rear - Kawasaki - 44-Tooth JTR1826.44
JT SPROCKETS
$31.28Made 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 hand-finished to perfectionJTR182644- SKU:
- JTR182644
- Availability:
- Ships Same Business Day
- Weight:
- 2.70 LBS
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- CHAIN SIZE:
- 520
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- STREET
- MATERIAL:
- STEEL
- TOOTH COUNT:
- 44
$31.28 -
JT SPROCKETS Sprocket - Rear - Yamaha - 47-Tooth JTR1842.47
JT SPROCKETS
$23.48Computer-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 meets or exceeds the highest possible quality...JTR184247- SKU:
- JTR184247
- Availability:
- Ships Same Business Day
- Weight:
- 1.60 LBS
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 47
- MATERIAL:
- STEEL
- MODEL:
- YAMAHA
- RIDING STYLE:
- OFF-ROAD
- MOUNTING POSITION:
- REAR
- UNITS:
- EACH
- CHAIN SIZE:
- 428
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
$23.48 -
JT SPROCKETS Sprocket - Rear - Yamaha - 50-Tooth JTR1842.50
JT SPROCKETS
$26.53Computer-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...JTR184250- SKU:
- JTR184250
- Availability:
- Ships Same Business Day
- Weight:
- 2.20 LBS
- MODEL:
- YAMAHA
- MOUNTING POSITION:
- REAR
- CHAIN SIZE:
- 428
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 50
- UNITS:
- EACH
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
$26.53 -
JT SPROCKETS Sprocket - Rear - Yamaha - 54-Tooth JTR1842.54
JT SPROCKETS
$30.33Computer-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...JTR184254- SKU:
- JTR184254
- Availability:
- Ships Same Business Day
- Weight:
- 2.30 LBS
- CHAIN SIZE:
- 428
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- UNITS:
- EACH
- MOUNTING POSITION:
- REAR
- TOOTH COUNT:
- 54
- MATERIAL:
- STEEL
- MODEL:
- YAMAHA
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- SPROCKET
$30.33 -
On Sale
JT SPROCKETS Sprocket - Rear - Yamaha - 42-Tooth JTR1912.42
JT SPROCKETS
MSRP: $30.43Now: $19.00Was: $30.43Made 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 hand-finished to perfectionJTR191242- SKU:
- JTR191242
- Availability:
- Ships Same Business Day
- Weight:
- 2.10 LBS
- RIDING STYLE:
- OFF-ROAD
- TOOTH COUNT:
- 42
- MATERIAL:
- STEEL
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- MODEL:
- YAMAHA
- CHAIN SIZE:
- 520
- MOUNTING POSITION:
- REAR
MSRP: $30.43Now: $19.00Was: $30.43 -
JT SPROCKETS Sprocket - Rear - Honda - 47-Tooth JTR215.47
JT SPROCKETS
$24.43Computer 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...JTR21547- SKU:
- JTR21547
- Availability:
- Ships Same Business Day
- Weight:
- 1.70 LBS
- MATERIAL:
- STEEL
- CHAIN SIZE:
- 420
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- MODEL:
- HONDA
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 47
$24.43 -
JT SPROCKETS Sprocket - Rear - Honda - 55-Tooth JTR217.55
JT SPROCKETS
$29.85Computer 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...JTR21755- SKU:
- JTR21755
- Availability:
- Ships Same Business Day
- Weight:
- 2.30 LBS
- MODEL:
- HONDA
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- OFF-ROAD
- TOOTH COUNT:
- 55
- CHAIN SIZE:
- 428
- MATERIAL:
- STEEL
- UNITS:
- EACH
$29.85 -
JT SPROCKETS Sprocket - Rear - Yamaha - 42-Tooth JTR1857.42
JT SPROCKETS
$27.85Made 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 hand-finished to perfection12120235- SKU:
- 12120235
- Availability:
- Ships Same Business Day
- Weight:
- 1.69 LBS
- COLOR/FINISH:
- BLACK
- MATERIAL:
- STEEL
- TOOTH COUNT:
- 42
- TYPE:
- REAR
- MODEL:
- YAMAHA
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- CHAIN SIZE:
- 520
- MOUNTING POSITION:
- REAR
$27.85 -
JT SPROCKETS Sprocket - Rear - Honda - 46-Tooth JTR245/2.46
JT SPROCKETS
$31.33Computer 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...12120237- SKU:
- 12120237
- Availability:
- Ships Same Business Day
- Weight:
- 2.20 LBS
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 46
- CHAIN SIZE:
- 520
- RIDING STYLE:
- STREET
- MATERIAL:
- C45 HIGH-CARBON STEEL
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
$31.33 -
JT SPROCKETS Sprocket - Rear - Honda - 43-Tooth JTR284.43
JT SPROCKETS
$44.78Computer-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...JTR28443- SKU:
- JTR28443
- Availability:
- Ships Same Business Day
- Weight:
- 2.80 LBS
- CHAIN SIZE:
- 530
- TOOTH COUNT:
- 43
- UNITS:
- EACH
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- STREET
- MATERIAL:
- STEEL
- PRODUCT NAME:
- SPROCKET
$44.78 -
JT SPROCKETS Sprocket - Rear - Honda - 48-Tooth JTR284.48
JT SPROCKETS
$44.65Computer-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...JTR28448- SKU:
- JTR28448
- Availability:
- Ships Same Business Day
- Weight:
- 3.20 LBS
- MATERIAL:
- STEEL
- TOOTH COUNT:
- 48
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- UNITS:
- EACH
- CHAIN SIZE:
- 530
- RIDING STYLE:
- STREET
$44.65 -
JT SPROCKETS Sprocket - Rear - Husqvarna - 52-Tooth JTR822.52
JT SPROCKETS
$39.53Computer 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...12120245- SKU:
- 12120245
- Availability:
- Ships Same Business Day
- Weight:
- 2.40 LBS
- CHAIN SIZE:
- 520
- RIDING STYLE:
- STREET
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- OFF-ROAD
- MATERIAL:
- C45 HIGH-CARBON STEEL
- MOUNTING POSITION:
- REAR
- TOOTH COUNT:
- 52
- UNITS:
- EACH
- PRODUCT NAME:
- SPROCKET
$39.53 -
JT SPROCKETS Sprocket - Rear - Kawasaki/Suzuki - 47-Tooth JTR460.47
JT SPROCKETS
$33.55Computer 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...JTR46047- SKU:
- JTR46047
- Availability:
- Ships Same Business Day
- Weight:
- 2.30 LBS
- CHAIN SIZE:
- 520
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- OFF-ROAD
- TOOTH COUNT:
- 47
- UNITS:
- EACH
- MATERIAL:
- STEEL
- PRODUCT NAME:
- SPROCKET
$33.55 -
JT SPROCKETS Sprocket - Rear - Kawasaki/Suzuki - 48-Tooth JTR461.48
JT SPROCKETS
$21.13Computer 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...JTR46148- SKU:
- JTR46148
- Availability:
- Ships Same Business Day
- Weight:
- 1.60 LBS
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- TOOTH COUNT:
- 48
- PRODUCT NAME:
- SPROCKET
- UNITS:
- EACH
- CHAIN SIZE:
- 420
- MOUNTING POSITION:
- REAR
$21.13 -
JT SPROCKETS Rear Sprocket - Honda - Red - 42 Tooth JTA210.42RED
JT SPROCKETS
$32.20Computer-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...12112563- SKU:
- 12112563
- Availability:
- Ships Same Business Day
- Weight:
- 0.65 LBS
- CHAIN SIZE:
- 520
- MATERIAL:
- 7075-T6 ALUMINUM
- COLOR/FINISH:
- RED
- TOOTH COUNT:
- 42
- TYPE:
- REAR
- MOUNTING POSITION:
- REAR
- UNITS:
- EACH
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- OFF-ROAD
$32.20 -
JT SPROCKETS Rear Sprocket - Honda - Red - 44 Tooth JTA210.44RED
JT SPROCKETS
$34.03Computer-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...12112564- SKU:
- 12112564
- Availability:
- Ships Same Business Day
- Weight:
- 0.80 LBS
- PRODUCT NAME:
- SPROCKET
- MATERIAL:
- 7075-T6 ALUMINUM
- RIDING STYLE:
- OFF-ROAD
- TOOTH COUNT:
- 44
- CHAIN SIZE:
- 520
- MOUNTING POSITION:
- REAR
- TYPE:
- DRIVE
- COLOR/FINISH:
- RED
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- UNITS:
- EACH
$34.03
