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...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...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...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...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...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...12112041- SKU:
- 12112041
- Availability:
- Ships Same Business Day
- Weight:
- 0.88 LBS
$39.95Qty in Cart: 0Quantity:Price:$39.95Subtotal: -
On Sale
JT SPROCKETS Rear Sprocket - 38 Tooth - Kymco JTR1072.38
JT SPROCKETS
MSRP: $26.30Now: $23.41Was: $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...12100389- SKU:
- 12100389
- Availability:
- Ships Same Business Day
- Weight:
- 1.10 LBS
MSRP: $26.30Now: $23.41Was: $26.30 -
On Sale
JT SPROCKETS Rear Sprocket - 49 Tooth - CRF125FB JTR1204.49
JT SPROCKETS
MSRP: $25.03Now: $22.28Was: $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...12101441- SKU:
- 12101441
- Availability:
- Ships Same Business Day
- Weight:
- 1.75 LBS
MSRP: $25.03Now: $22.28Was: $25.03 -
On Sale
JT SPROCKETS Rear Sprocket - Suzuki - 43 Tooth JTR808.43
JT SPROCKETS
MSRP: $31.08Now: $27.66Was: $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...12100716- SKU:
- 12100716
- Availability:
- Ships Same Business Day
- Weight:
- 1.30 LBS
MSRP: $31.08Now: $27.66Was: $31.08 -
On Sale
JT SPROCKETS Rear Sprocket - 44 Tooth - KTM/Husaberg/Husqvarna JTR897.44
JT SPROCKETS
MSRP: $32.43Now: $28.86Was: $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...12100727- SKU:
- 12100727
- Availability:
- Ships Same Business Day
- Weight:
- 1.35 LBS
MSRP: $32.43Now: $28.86Was: $32.43 -
On Sale
JT SPROCKETS Rear Sprocket - 51 Tooth - Husqvarna/Gas Gas JTR822.51
JT SPROCKETS
MSRP: $37.45Now: $33.33Was: $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...12100765- SKU:
- 12100765
- Availability:
- Ships Same Business Day
- Weight:
- 2.10 LBS
MSRP: $37.45Now: $33.33Was: $37.45 -
On Sale
JT SPROCKETS Rear Sprocket - 40 Tooth - CRF250 JTR301.40
JT SPROCKETS
MSRP: $30.83Now: $27.44Was: $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...12101336- SKU:
- 12101336
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
MSRP: $30.83Now: $27.44Was: $30.83 -
On Sale
JT SPROCKETS Rear Sprocket - 48 Tooth - KTM/Husqvarna JTR894.48
JT SPROCKETS
MSRP: $20.78Now: $18.49Was: $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...12101341- SKU:
- 12101341
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
MSRP: $20.78Now: $18.49Was: $20.78 -
On Sale
JT SPROCKETS Rear Sprocket - 52 Tooth - KX100 JTR461.52
JT SPROCKETS
MSRP: $26.38Now: $23.48Was: $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...12101436- SKU:
- 12101436
- Availability:
- Ships Same Business Day
- Weight:
- 1.85 LBS
MSRP: $26.38Now: $23.48Was: $26.38 -
On Sale
JT SPROCKETS Rear Sprocket - 39 Tooth - CRF250 JTR301.39
JT SPROCKETS
MSRP: $30.83Now: $27.44Was: $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...12101448- SKU:
- 12101448
- Availability:
- Ships Same Business Day
- Weight:
- 1.20 LBS
MSRP: $30.83Now: $27.44Was: $30.83 -
On Sale
JT SPROCKETS Rear Sprocket - 47 Tooth - Yamaha JTR251.47
JT SPROCKETS
MSRP: $29.78Now: $26.50Was: $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...12101550- SKU:
- 12101550
- Availability:
- Ships Same Business Day
- Weight:
- 1.75 LBS
MSRP: $29.78Now: $26.50Was: $29.78 -
On Sale
JT SPROCKETS Rear Sprocket - 40 Tooth - KTM/Husaberg/Husqvarna JTR897.40
JT SPROCKETS
MSRP: $30.35Now: $27.01Was: $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...12102677- SKU:
- 12102677
- Availability:
- Ships Same Business Day
- Weight:
- 1.40 LBS
MSRP: $30.35Now: $27.01Was: $30.35 -
On Sale
JT SPROCKETS Rear Sprocket - 47 Tooth - KTM/Husaberg/Husqvarna JTR897.47
JT SPROCKETS
MSRP: $32.43Now: $28.86Was: $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...12102678- SKU:
- 12102678
- Availability:
- Ships Same Business Day
- Weight:
- 1.60 LBS
MSRP: $32.43Now: $28.86Was: $32.43 -
On Sale
JT SPROCKETS Rear Sprocket - 44 Tooth - Yamaha JTR1842.44
JT SPROCKETS
MSRP: $22.58Now: $20.10Was: $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...12102689- SKU:
- 12102689
- Availability:
- Ships Same Business Day
- Weight:
- 1.55 LBS
MSRP: $22.58Now: $20.10Was: $22.58 -
On Sale
JT SPROCKETS Rear Sprocket - 47 Tooth - XT 250 JTR1847.47
JT SPROCKETS
MSRP: $28.70Now: $25.54Was: $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...12102690- SKU:
- 12102690
- Availability:
- Ships Same Business Day
- Weight:
- 1.15 LBS
MSRP: $28.70Now: $25.54Was: $28.70
