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 Sprocket - Rear - Yamaha - 49-Tooth JTR833.49
JT SPROCKETS
$25.28A properly sized rear sprocket is critical for optimizing your Yamaha's power delivery and acceleration characteristics. The JT Sprockets 49-tooth rear sprocket combines precision engineering with high-grade materials to deliver reliable performance...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
$28.90A worn or incorrect sprocket directly impacts your acceleration, top-end speed, and chain longevity. The JT Sprockets 40-tooth rear sprocket for Kawasaki delivers the precision engineering your bike demands, with aviation-grade materials and CNC...JTR182640- 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
$28.90Your Kawasaki's acceleration and top-end performance depend on precise power delivery from the rear sprocket—worn or suboptimal gearing forces your engine to work harder and sacrifices efficiency. The JT Sprockets 41-tooth rear sprocket delivers the...JTR182641- 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
$28.90A worn or mismatched rear sprocket directly impacts your acceleration, top-end speed, and overall drivetrain efficiency. This JT Sprockets 42-tooth rear sprocket is precision-engineered to deliver reliable power transfer with minimal wear on your chain...JTR182642- 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
$31.28Rear sprocket wear directly impacts your acceleration, top-end performance, and chain longevity—making this 44-tooth JT Sprockets unit a critical upgrade for Kawasaki riders who demand reliability on the track or trail. Manufactured from aviation-grade...JTR182644- 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
$23.48A worn or undersized rear sprocket robs your Yamaha of acceleration and top-end performance. JT's 47-tooth sprocket delivers the precise gear ratio you need for aggressive acceleration without compromising reliability. Built from premium C45 high-carbon...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
$26.53A worn or compromised rear sprocket directly impacts power delivery, acceleration, and overall drivetrain efficiency. The JT Sprockets 50-tooth rear sprocket is engineered for motorcycles demanding reliable, consistent performance across varied riding...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
$30.33A worn or incorrect sprocket directly impacts your bike's acceleration, top-end speed, and overall driveability. The JT Sprockets 54-tooth rear sprocket delivers the precision engineering and material quality needed for consistent performance, whether...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: $28.95Now: $19.00Was: $28.95A worn or mismatched rear sprocket directly impacts your Yamaha's acceleration, top-end performance, and drivetrain efficiency. The JT Sprockets 42-tooth rear sprocket delivers precise chain engagement and reliable power delivery lap after lap, whether...JTR191242- 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: $28.95Now: $19.00Was: $28.95 -
JT SPROCKETS Sprocket - Rear - Honda - 47-Tooth JTR215.47
JT SPROCKETS
$24.43A rear sprocket is fundamental to your drivetrain's acceleration, top-end speed, and overall power delivery. The JT Sprockets 47-tooth rear sprocket delivers precision engineering and durability that withstands high-RPM demands while keeping rotating...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
$29.85A properly sized rear sprocket is critical for optimizing your Honda's powerband characteristics and acceleration delivery. The JT Sprockets 55-tooth rear sprocket combines precision engineering with proven durability, delivering the exact gear ratio...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
$27.85A properly sized rear sprocket is critical to maximizing your Yamaha's acceleration, top-end speed, and overall power delivery. This 42-tooth JT sprocket delivers the precision engineering required for consistent performance, whether you're tracking your...12120235- 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
$31.33A quality rear sprocket is fundamental to your drivetrain's efficiency and longevity. The JT Sprockets 46-tooth rear sprocket combines precision engineering with Japanese high-carbon steel construction to deliver consistent power transfer and extended...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
$31.33Qty in Cart: 0Quantity:Price:$31.33Subtotal: -
JT SPROCKETS Sprocket - Rear - Honda - 43-Tooth JTR284.43
JT SPROCKETS
$44.78A worn or undersized rear sprocket robs your Honda of acceleration and top-end performance. The JT Sprockets 43-tooth rear sprocket delivers the precision engineering and durability needed to handle sustained high-RPM demands without compromising...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
$44.65A properly matched rear sprocket is critical to your bike's acceleration, top-end speed, and overall drivetrain efficiency. The JT Sprockets 48-tooth rear sprocket delivers the precision engineering and durability you need for consistent performance,...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
$39.53A rear sprocket is critical to your power delivery and acceleration—choose the wrong tooth count or material, and you're leaving performance on the table. The JT Sprockets 52-tooth rear sprocket for Husqvarna delivers the strength you need for aggressive...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
$33.55A properly sized rear sprocket is critical to maximizing your powerband and maintaining optimal chain tension across your Kawasaki or Suzuki's operating range. This 47-tooth JT sprocket delivers the precision engineering and durability expected in...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
$21.13A worn or mismatched rear sprocket directly impacts your acceleration, top-end speed, and overall drivetrain efficiency. The JT Sprockets 48-tooth rear sprocket is engineered to deliver maximum strength while minimizing rotating mass—critical for both...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
$21.13Qty in Cart: 0Quantity:Price:$21.13Subtotal: -
JT SPROCKETS Rear Sprocket - Honda - Red - 42 Tooth JTA210.42RED
JT SPROCKETS
$32.20A quality rear sprocket is fundamental to your Honda's acceleration, top-end performance, and drivetrain longevity. The JT Sprockets 42-tooth rear sprocket delivers the precision engineering and durability you need to maximize power transfer while...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
$34.03A rear sprocket is one of the most direct ways to tune your Honda's acceleration and top-end performance. The JT SPROCKETS 44-tooth rear sprocket delivers the precise gear ratio you need for track or street riding, while its heat-treated construction and...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
