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
-
On Sale
JT SPROCKETS Rear Sprocket - 51 Tooth - XT 250 JTR1847.51
JT SPROCKETS
MSRP: $33.80Now: $30.08Was: $33.80A worn or incorrect rear sprocket directly impacts your XT 250's acceleration, top-end speed, and overall drivetrain efficiency. This 51-tooth JT Sprocket delivers the precise gear ratio you need for...12102691- SKU:
- 12102691
- Availability:
- Ships Same Business Day
- Weight:
- 1.40 LBS
MSRP: $33.80Now: $30.08Was: $33.80Qty in Cart: 0Quantity:Price:MSRP: $33.80Now: $30.08Was: $33.80Subtotal: -
On Sale
JT SPROCKETS Rear Sprocket - 42 Tooth - Honda/Yamaha JTR245/2.42
JT SPROCKETS
MSRP: $31.33Now: $27.88Was: $31.33A worn or incorrect rear sprocket directly impacts your bike's acceleration, top-end speed, and overall driveability. The JT Sprockets 42-tooth rear sprocket is engineered to deliver consistent power...12102698- SKU:
- 12102698
- Availability:
- Ships Same Business Day
- Weight:
- 1.75 LBS
MSRP: $31.33Now: $27.88Was: $31.33Qty in Cart: 0Quantity:Price:MSRP: $31.33Now: $27.88Was: $31.33Subtotal: -
On Sale
JT SPROCKETS Rear Sprocket - 33 Tooth - CT70 JTR256.33
JT SPROCKETS
MSRP: $17.33Now: $15.42Was: $17.33A worn or incorrect rear sprocket directly impacts your CT70's acceleration, top-end speed, and overall drivetrain efficiency. The JT Sprockets 33-tooth rear sprocket delivers the precision...12102701- SKU:
- 12102701
- Availability:
- Ships Same Business Day
- Weight:
- 1.40 LBS
MSRP: $17.33Now: $15.42Was: $17.33 -
On Sale
JT SPROCKETS Rear Sprocket - 43 Tooth - Kawasaki JTR460.43
JT SPROCKETS
MSRP: $31.08Now: $27.66Was: $31.08A worn or mismatched rear sprocket directly impacts your acceleration, top-end speed, and engine efficiency. The JT Sprockets 43-tooth rear sprocket is engineered to deliver reliable power transfer...12102702- SKU:
- 12102702
- Availability:
- Ships Same Business Day
- Weight:
- 1.35 LBS
MSRP: $31.08Now: $27.66Was: $31.08 -
On Sale
JT SPROCKETS Rear Sprocket - 44 Tooth - Kawasaki JTR460.44
JT SPROCKETS
MSRP: $31.08Now: $27.66Was: $31.08A worn or mismatched rear sprocket directly impacts your bike's acceleration, top-end speed, and overall drivetrain efficiency. The JT Sprockets 44-tooth rear sprocket delivers the strength and...12102703- SKU:
- 12102703
- Availability:
- Ships Same Business Day
- Weight:
- 1.60 LBS
MSRP: $31.08Now: $27.66Was: $31.08 -
On Sale
JT SPROCKETS Rear Sprocket - 48 Tooth - Suzuki JTR811.48
JT SPROCKETS
MSRP: $32.88Now: $29.26Was: $32.88A worn or incorrect rear sprocket directly impacts your Suzuki's acceleration, top-end speed, and overall drivetrain efficiency. The JT Sprockets 48-tooth rear sprocket delivers the durability and...12102720- SKU:
- 12102720
- Availability:
- Ships Same Business Day
- Weight:
- 2.75 LBS
MSRP: $32.88Now: $29.26Was: $32.88Qty in Cart: 0Quantity:Price:MSRP: $32.88Now: $29.26Was: $32.88Subtotal: -
On Sale
JT SPROCKETS Rear Sprocket - 40 Tooth - XT600 JTR857.40
JT SPROCKETS
MSRP: $27.85Now: $24.79Was: $27.85A worn or incorrect rear sprocket directly impacts your XT600's acceleration, top-end speed, and overall drivetrain efficiency. The JT Sprockets 40-tooth rear sprocket delivers the precision...12102737- SKU:
- 12102737
- Availability:
- Ships Same Business Day
- Weight:
- 1.53 LBS
MSRP: $27.85Now: $24.79Was: $27.85 -
On Sale
JT SPROCKETS Rear Sprocket - 46 Tooth - Yamaha JTR251.46
JT SPROCKETS
MSRP: $29.78Now: $26.50Was: $29.78A properly sized rear sprocket is critical for optimizing your Yamaha's power delivery and acceleration characteristics. The JT Sprockets 46-tooth rear sprocket delivers the durability and precision...12102408- SKU:
- 12102408
- Availability:
- Ships Same Business Day
- Weight:
- 1.55 LBS
MSRP: $29.78Now: $26.50Was: $29.78 -
MOOSE RACING Steel Rear Sprocket - Honda - 36 Tooth 1214ST-36
MOOSE RACING
$26.95A rear sprocket is one of the most direct ways to tune your Honda's acceleration and top-end performance. The MOOSE RACING 36-tooth sprocket delivers the precision and durability required for...12102739- SKU:
- 12102739
- Availability:
- Ships Same Business Day
- Weight:
- 1.05 LBS
$26.95 -
MOOSE RACING Steel Rear Sprocket - Honda - 46 Tooth 1214ST-46
MOOSE RACING
$26.95A worn or mismatched rear sprocket compromises acceleration, throttle response, and chain longevity. The MOOSE RACING 46-tooth steel sprocket is precision-engineered for Honda motorcycles, delivering...12102740- SKU:
- 12102740
- Availability:
- Ships Same Business Day
- Weight:
- 1.79 LBS
$26.95Qty in Cart: 0Quantity:Price:$26.95Subtotal: -
MOOSE RACING Steel Rear Sprocket - Honda - 37 Tooth 1213ST-37
MOOSE RACING
$26.95A properly matched rear sprocket is critical to maximizing your Honda's acceleration, top-end speed, and overall powertrain efficiency. The MOOSE RACING 37-tooth steel sprocket delivers the...12102738- SKU:
- 12102738
- Availability:
- Ships Same Business Day
- Weight:
- 1.40 LBS
$26.95 -
On Sale
JT SPROCKETS Countershaft Sprocket - 16 Tooth - KLR 650 JTF511.16RB
JT SPROCKETS
MSRP: $20.00Now: $17.80Was: $20.00A worn or damaged countershaft sprocket compromises power delivery and accelerates wear across your entire drivetrain. This JT Sprockets 16-tooth replacement restores precise engagement with your...12102757- SKU:
- 12102757
- Availability:
- Ships Same Business Day
- Weight:
- 0.55 LBS
MSRP: $20.00Now: $17.80Was: $20.00 -
On Sale
Renthal Ultralight Rear Sprocket 49T Aluminum for Suzuki 123U-520-49GPHA
RENTHAL
MSRP: $103.95Now: $93.56Was: $103.95Unsprung weight directly impacts your bike's acceleration, handling, and responsiveness—the Renthal Ultralight Rear Sprocket eliminates 66% of the mass of a steel equivalent, translating to...12112771- SKU:
- 12112771
- Availability:
- Ships Same Business Day
- Weight:
- 0.01 LBS
MSRP: $103.95Now: $93.56Was: $103.95 -
On Sale
Renthal 51 Tooth Aluminum Rear Sprocket for Suzuki 123U-520-51GPHA
RENTHAL
MSRP: $103.95Now: $93.56Was: $103.95Shed unsprung weight without sacrificing durability. The Renthal 51-tooth aluminum rear sprocket reduces rotational mass by 66% compared to steel, translating to sharper throttle response, quicker...12112773- SKU:
- 12112773
- Availability:
- Ships Same Business Day
- Weight:
- 0.01 LBS
MSRP: $103.95Now: $93.56Was: $103.95Qty in Cart: 0Quantity:Price:MSRP: $103.95Now: $93.56Was: $103.95Subtotal: -
On Sale
Renthal Rear Aluminum Sprocket 48T 520 Chain Yamaha 150U-520-48GBHA
RENTHAL
MSRP: $103.95Now: $93.56Was: $103.95If you're running a 520 chain setup on your Yamaha dirt bike, your sprocket choice directly impacts acceleration response and overall drivetrain efficiency. The Renthal 48T aluminum sprocket cuts...12112774- SKU:
- 12112774
- Availability:
- Ships Same Business Day
- Weight:
- 0.01 LBS
MSRP: $103.95Now: $93.56Was: $103.95Qty in Cart: 0Quantity:Price:MSRP: $103.95Now: $93.56Was: $103.95Subtotal: -
On Sale
Renthal Rear Sprocket 51 Tooth Aluminum for Yamaha 150U-520-51GBHA
RENTHAL
MSRP: $103.95Now: $93.56Was: $103.95Reducing unsprung weight directly improves acceleration and handling—two critical factors that separate competitive setups from stock configurations. The Renthal 51-tooth rear sprocket cuts weight by...12112777- SKU:
- 12112777
- Availability:
- Ships Same Business Day
- Weight:
- 0.70 LBS
MSRP: $103.95Now: $93.56Was: $103.95 -
On Sale
Renthal Rear Sprocket 48 Tooth Aluminum for KTM Husqvarna Gas Gas 224U-520-48GPHA
RENTHAL
MSRP: $103.95Now: $93.56Was: $103.95Shave critical rotational mass without compromising durability or power delivery. The Renthal 48-tooth rear sprocket cuts 66% of the weight compared to steel, translating to faster acceleration,...12112782- SKU:
- 12112782
- Availability:
- Ships Same Business Day
- Weight:
- 0.85 LBS
MSRP: $103.95Now: $93.56Was: $103.95 -
On Sale
Renthal Rear Sprocket 49 Tooth Aluminum for KTM Husqvarna Gas Gas 224U-520-49GPHA
RENTHAL
MSRP: $103.95Now: $93.56Was: $103.95Shaving unsprung weight off your drivetrain directly improves throttle response and handling—especially critical when you're pushing hard through technical terrain. The Renthal 49-tooth rear sprocket...12112783- SKU:
- 12112783
- Availability:
- Ships Same Business Day
- Weight:
- 0.01 LBS
MSRP: $103.95Now: $93.56Was: $103.95Qty in Cart: 0Quantity:Price:MSRP: $103.95Now: $93.56Was: $103.95Subtotal: -
On Sale
Renthal Rear Sprocket 50 Tooth Aluminum for KTM Husqvarna Gas Gas 224U-520-50GPHA
RENTHAL
MSRP: $103.95Now: $93.56Was: $103.95If you're running a 50-tooth rear sprocket, weight matters—every gram impacts acceleration and handling. The Renthal 7075 T6 aluminum chainwheel delivers a measurable 66% weight reduction over steel...12112784- SKU:
- 12112784
- Availability:
- Ships Same Business Day
- Weight:
- 1.05 LBS
MSRP: $103.95Now: $93.56Was: $103.95Qty in Cart: 0Quantity:Price:MSRP: $103.95Now: $93.56Was: $103.95Subtotal: -
On Sale
JT SPROCKETS Rear Sprocket - Aluminum - 49 Tooth - Blue - Gas Gas/Husqvarna/KTM JTA895.49BLU
JT SPROCKETS
MSRP: $35.18Now: $31.31Was: $35.18A worn or mismatched rear sprocket directly impacts acceleration, top-end speed, and overall drivetrain efficiency on your dirt bike. The JT SPROCKETS 49-tooth aluminum sprocket delivers the...12112872- SKU:
- 12112872
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
MSRP: $35.18Now: $31.31Was: $35.18
