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!
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On Sale
MOOSE OFFROAD Rear Sprocket - 47 Tooth 1211-2014-47-10
MOOSE OFFROAD
MSRP: $39.95Now: $26.00Was: $39.95A worn or undersized sprocket robs your drivetrain of efficiency and accelerates chain wear across your entire system. The MOOSE OFFROAD 47-tooth rear sprocket delivers precision-machined durability with optimized tooth geometry that maximizes contact...12112030- SKU:
- 12112030
- Availability:
- Ships Same Business Day
- Weight:
- 0.70 LBS
MSRP: $39.95Now: $26.00Was: $39.95 -
MOOSE OFFROAD Rear Sprocket - 50 Tooth 1211-2014-50-10
MOOSE OFFROAD
$39.95A worn or undersized rear sprocket compromises acceleration, chain longevity, and overall drivetrain efficiency. The MOOSE OFFROAD 50-tooth sprocket delivers the durability and precision needed for consistent performance, whether you're pushing through...12112031- SKU:
- 12112031
- Availability:
- Ships Same Business Day
- Weight:
- 0.81 LBS
$39.95 -
MOOSE OFFROAD Rear Sprocket - 48 Tooth 1211-1134-48-10
MOOSE OFFROAD
$39.95A worn or incompatible rear sprocket compromises your drivetrain's efficiency and acceleration. The MOOSE OFFROAD 48-tooth sprocket delivers precision engineering that maximizes chain contact and tooth longevity, keeping power transfer consistent lap...12112032- SKU:
- 12112032
- Availability:
- Ships Same Business Day
- Weight:
- 0.69 LBS
$39.95 -
MOOSE OFFROAD Rear Sprocket - 50 Tooth 1211-1134-50-10
MOOSE OFFROAD
$39.95A worn or undersized rear sprocket robs your bike of acceleration and top-end performance. The MOOSE OFFROAD 50-tooth rear sprocket delivers optimal gear ratio while withstanding the demands of aggressive riding through precision engineering and premium...12112033- SKU:
- 12112033
- Availability:
- Ships Same Business Day
- Weight:
- 0.73 LBS
$39.95 -
MOOSE OFFROAD Rear Sprocket - 43 Tooth - Yamaha 1211-1876-43-10
MOOSE OFFROAD
$39.95A worn or undersized rear sprocket robs your Yamaha of acceleration and top-end performance. The MOOSE OFFROAD 43-tooth rear sprocket delivers the durability and precision engagement your chain demands, whether you're pushing through technical terrain or...12112034- SKU:
- 12112034
- Availability:
- Ships Same Business Day
- Weight:
- 0.64 LBS
$39.95 -
MOOSE OFFROAD Rear Sprocket - 45 Tooth - Honda 1211-301-45-10
MOOSE OFFROAD
$39.95A worn or undersized rear sprocket robs you of acceleration and forces your chain to work harder than necessary, increasing wear across your entire drivetrain. The MOOSE OFFROAD 45-tooth rear sprocket delivers the optimal balance of durability and...12112041- SKU:
- 12112041
- Availability:
- Ships Same Business Day
- Weight:
- 0.88 LBS
$39.95 -
JT SPROCKETS Rear Sprocket - 38 Tooth - Kymco JTR1072.38
JT SPROCKETS
$26.30A worn or mismatched rear sprocket directly impacts your Kymco's acceleration, top-end speed, and overall drivability. The JT Sprockets 38-tooth rear sprocket is engineered for reliable power delivery with minimal rotational mass, ensuring consistent...12100389- SKU:
- 12100389
- Availability:
- Ships Same Business Day
- Weight:
- 1.10 LBS
$26.30 -
JT SPROCKETS Rear Sprocket - 49 Tooth - CRF125FB JTR1204.49
JT SPROCKETS
$25.03A worn or damaged rear sprocket directly impacts your CRF125FB's acceleration, top speed, and overall drivetrain efficiency. The JT Sprockets 49-tooth rear sprocket restores optimal power delivery to the rear wheel with a precision-engineered design that...12101441- SKU:
- 12101441
- Availability:
- Ships Same Business Day
- Weight:
- 1.75 LBS
$25.03 -
JT SPROCKETS Rear Sprocket - Suzuki - 43 Tooth JTR808.43
JT SPROCKETS
$31.08A rear sprocket is fundamental to your drivetrain's performance—it directly affects acceleration, top speed, and overall power delivery. The JT Sprockets 43-tooth rear sprocket for Suzuki combines precision engineering with proven durability, giving you...12100716- SKU:
- 12100716
- Availability:
- Ships Same Business Day
- Weight:
- 1.30 LBS
$31.08 -
JT SPROCKETS Rear Sprocket - 44 Tooth - KTM/Husaberg/Husqvarna JTR897.44
JT SPROCKETS
$32.43A worn or incorrect rear sprocket directly impacts your bike's acceleration, top speed, and overall drivetrain efficiency. The JT Sprockets 44-tooth rear sprocket delivers precise gear ratios while maintaining the durability required for aggressive...12100727- SKU:
- 12100727
- Availability:
- Ships Same Business Day
- Weight:
- 1.35 LBS
$32.43 -
JT SPROCKETS Rear Sprocket - 51 Tooth - Husqvarna/Gas Gas JTR822.51
JT SPROCKETS
$37.45Proper sprocket sizing is critical for optimizing your Husqvarna or Gas Gas's power delivery and acceleration characteristics. The JT Sprockets 51-tooth rear sprocket delivers the strength and durability demanded by competitive riders and serious...12100765- SKU:
- 12100765
- Availability:
- Ships Same Business Day
- Weight:
- 2.10 LBS
$37.45 -
JT SPROCKETS Rear Sprocket - 40 Tooth - CRF250 JTR301.40
JT SPROCKETS
$30.83A worn or mismatched rear sprocket directly impacts your CRF250's acceleration, top-end speed, and overall drivetrain efficiency. This JT Sprockets 40-tooth replacement delivers the precise gearing you need for consistent performance, whether you're...12101336- SKU:
- 12101336
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
$30.83 -
JT SPROCKETS Rear Sprocket - 48 Tooth - KTM/Husqvarna JTR894.48
JT SPROCKETS
$20.78A worn or incorrect sprocket directly impacts your acceleration, top-end speed, and overall drivetrain efficiency. The JT Sprockets 48-tooth rear sprocket is engineered to deliver the precise gear ratio your KTM or Husqvarna needs while maintaining the...12101341- SKU:
- 12101341
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
$20.78 -
JT SPROCKETS Rear Sprocket - 52 Tooth - KX100 JTR461.52
JT SPROCKETS
$26.38A worn or mismatched rear sprocket directly impacts your KX100's acceleration, top-end speed, and overall drivetrain efficiency. The JT Sprockets 52-tooth rear sprocket restores optimal power delivery and ensures consistent performance lap after lap...12101436- SKU:
- 12101436
- Availability:
- Ships Same Business Day
- Weight:
- 1.85 LBS
$26.38 -
JT SPROCKETS Rear Sprocket - 39 Tooth - CRF250 JTR301.39
JT SPROCKETS
$30.83A properly sized rear sprocket directly impacts your CRF250's acceleration, top-end speed, and overall power delivery. The 39-tooth configuration strikes an optimal balance between low-end responsiveness and highway capability, making it essential for...12101448- SKU:
- 12101448
- Availability:
- Ships Same Business Day
- Weight:
- 1.20 LBS
$30.83 -
JT SPROCKETS Rear Sprocket - 47 Tooth - Yamaha JTR251.47
JT SPROCKETS
$29.78A worn or incorrect sprocket directly impacts your bike's acceleration, top-end speed, and chain wear—making the right rear sprocket critical for any serious rider. The JT Sprockets 47-tooth rear sprocket delivers the durability and precision needed for...12101550- SKU:
- 12101550
- Availability:
- Ships Same Business Day
- Weight:
- 1.75 LBS
$29.78 -
JT SPROCKETS Rear Sprocket - 40 Tooth - KTM/Husaberg/Husqvarna JTR897.40
JT SPROCKETS
$30.35A worn or incorrect rear sprocket directly impacts your bike's acceleration, top-end speed, and overall drivability—making this one of the most important drivetrain upgrades you can make. The JT Sprockets 40-tooth rear sprocket delivers the strength and...12102677- SKU:
- 12102677
- Availability:
- Ships Same Business Day
- Weight:
- 1.40 LBS
$30.35Qty in Cart: 0Quantity:Price:$30.35Subtotal: -
JT SPROCKETS Rear Sprocket - 47 Tooth - KTM/Husaberg/Husqvarna JTR897.47
JT SPROCKETS
$32.43A worn or undersized rear sprocket robs your KTM, Husaberg, or Husqvarna of acceleration and top-end performance. The JT Sprockets 47-tooth rear sprocket restores that lost drive while maintaining the durability you need for serious riding—whether you're...12102678- SKU:
- 12102678
- Availability:
- Ships Same Business Day
- Weight:
- 1.60 LBS
$32.43 -
JT SPROCKETS Rear Sprocket - 44 Tooth - Yamaha JTR1842.44
JT SPROCKETS
$22.58A worn or incorrect rear sprocket directly impacts your Yamaha's acceleration, top-end speed, and engine efficiency. The JT Sprockets 44-tooth rear sprocket restores optimal gearing characteristics while delivering the durability needed for consistent...12102689- SKU:
- 12102689
- Availability:
- Ships Same Business Day
- Weight:
- 1.55 LBS
$22.58 -
JT SPROCKETS Rear Sprocket - 47 Tooth - XT 250 JTR1847.47
JT SPROCKETS
$28.70A worn or incorrect sprocket directly impacts your XT 250's acceleration, top speed, and overall drivetrain efficiency. The JT Sprockets 47-tooth rear sprocket is engineered for precise engagement with your chain, delivering consistent power delivery...12102690- SKU:
- 12102690
- Availability:
- Ships Same Business Day
- Weight:
- 1.15 LBS
$28.70Qty in Cart: 0Quantity:Price:$28.70Subtotal:
