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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Renthal 50-Tooth Rear Sprocket for Honda CRF250R CRF450R CRF450X 154U-520-50GRSI
RENTHAL
$99.82Enhance your Honda's performance with the RENTHAL 50-Tooth Rear Sprocket, precision-engineered from 7075-T6 aluminum alloy. This ultralight sprocket is 66% lighter than steel, yet offers exceptional durability. Its self-cleaning mud grooves at each tooth...R15450- SKU:
- R15450
- Availability:
- Ships Same Business Day
- Weight:
- 0.95 LBS
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 50
- UNITS:
- EACH
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- DRIVE
- CHAIN SIZE:
- 520
- MATERIAL:
- 7075-T6 ALUMINUM
- COLOR/FINISH:
- SILVER
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
$99.82 -
Renthal 52-Tooth Rear Sprocket for Honda 154U-520-52GRSI
RENTHAL
$99.82Enhance your Honda's performance with the RENTHAL 52-Tooth Rear Sprocket, precision-engineered for durability and lightweight efficiency. Crafted from high-strength 7075-T6 aluminum alloy, this sprocket offers a significant weight reduction of...R15452- SKU:
- R15452
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- COLOR/FINISH:
- SILVER
- CHAIN SIZE:
- 520
- MATERIAL:
- 7075-T6 ALUMINUM
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 52
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- TYPE:
- DRIVE
$99.82 -
Renthal Ultralight Rear Sprocket 50T 420 Chain Silver 191U-420-50GESI
RENTHAL
$99.82Enhance your Kawasaki's performance with the RENTHAL 50-Tooth Rear Sprocket. Crafted from high-quality 7075-T6 aluminum alloy, this sprocket offers a perfect balance of strength and lightweight design, making it an excellent upgrade for riders seeking...R19150- SKU:
- R19150
- Availability:
- Ships Same Business Day
- Weight:
- 0.70 LBS
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 50
- UNITS:
- EACH
- COLOR/FINISH:
- SILVER
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- DRIVE
- CHAIN SIZE:
- 420
- MOUNTING POSITION:
- REAR
- MATERIAL:
- 7075-T6 ALUMINUM
$99.82 -
Renthal 49-Tooth Rear Sprocket for KTM 224U-520-49GPSI
RENTHAL
$99.82Enhance your KTM's performance with the RENTHAL 49-Tooth Rear Sprocket, precision-engineered from high-strength 7075-T6 aluminum alloy. This ultralight sprocket is 66% lighter than steel, yet incredibly durable, featuring self-cleaning mud grooves at...R22449- SKU:
- R22449
- Availability:
- Ships Same Business Day
- Weight:
- 0.86 LBS
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 49
- COLOR/FINISH:
- SILVER
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- DRIVE
- UNITS:
- EACH
- CHAIN SIZE:
- 520
- MATERIAL:
- 7075-T6 ALUMINUM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
$99.82 -
Renthal 52-Tooth Ultralight Rear Sprocket for KTM 224U-520-52GPSI
RENTHAL
$99.82Enhance your KTM's performance with the RENTHAL 52-Tooth Rear Sprocket, precision-engineered from high-strength 7075-T6 aluminum alloy. This ultralight sprocket is 66% lighter than traditional steel options, reducing unsprung weight and improving...R22452- SKU:
- R22452
- Availability:
- Ships Same Business Day
- Weight:
- 0.88 LBS
- COLOR/FINISH:
- SILVER
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- CHAIN SIZE:
- 520
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- MATERIAL:
- 7075-T6 ALUMINUM
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 52
- TYPE:
- DRIVE
$99.82 -
Renthal 49-Tooth Rear Sprocket for Suzuki 123U-520-49GYSI
RENTHAL
$99.82Enhance your Suzuki's performance with the RENTHAL 49-Tooth Rear Sprocket, engineered for durability and lightweight efficiency. Crafted from high-grade 7075-T6 aluminum alloy, this sprocket features self-cleaning mud grooves to prevent debris buildup,...R12349- SKU:
- R12349
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
- MATERIAL:
- 7075-T6 ALUMINUM
- COLOR/FINISH:
- SILVER
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- DRIVE
- CHAIN SIZE:
- 520
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- UNITS:
- EACH
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 49
$99.82 -
Renthal 50-Tooth Rear Sprocket for Suzuki 123U-520-50GYSI
RENTHAL
$99.82Enhance your Suzuki's performance with the RENTHAL 50-Tooth Rear Sprocket, precision-engineered for durability and lightweight efficiency. Crafted from high-grade 7075-T6 aluminum alloy, this sprocket offers a significant weight reduction of...R12350- SKU:
- R12350
- Availability:
- Ships Same Business Day
- Weight:
- 0.81 LBS
- CHAIN SIZE:
- 520
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- TYPE:
- DRIVE
- MATERIAL:
- 7075-T6 ALUMINUM
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 50
- COLOR/FINISH:
- SILVER
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
$99.82 -
Renthal 47-Tooth Rear Sprocket for Kawasaki 420 Chain Silver 408U-420-47GESI
RENTHAL
$99.82Enhance your Kawasaki's performance with the RENTHAL 47-Tooth Rear Sprocket. Crafted from high-strength 7075-T6 aluminum alloy, this sprocket offers exceptional durability while being 66% lighter than traditional steel options. Its self-cleaning mud...R408U42047- SKU:
- R408U42047
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 47
- CHAIN SIZE:
- 420
- MOUNTING POSITION:
- REAR
- COLOR/FINISH:
- SILVER
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- DRIVE
- UNITS:
- EACH
- MATERIAL:
- 7075-T6 ALUMINUM
$99.82 -
Renthal Ultralight Rear Sprocket 47T 420 Chain Silver 121U-420-47GBSI
RENTHAL
$99.82Enhance your Yamaha YZ65's performance with the RENTHAL 47-Tooth Rear Sprocket. Crafted from a specially enhanced 7075-T6 aluminum alloy, this sprocket offers exceptional strength while maintaining a lightweight design. Its self-cleaning mud grooves at...12112061- SKU:
- 12112061
- Availability:
- Ships Same Business Day
- Weight:
- 0.70 LBS
- CHAIN SIZE:
- 420
- MATERIAL:
- 7075-T6 ALUMINUM
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- OFF-ROAD
- TOOTH COUNT:
- 47
- UNITS:
- EACH
- COLOR/FINISH:
- SILVER
- TYPE:
- DRIVE
$99.82 -
Renthal 46T Orange Rear Sprocket 192U-420-46GPOR
RENTHAL
$104.61Enhance your off-road performance with the RENTHAL Orange Rear Sprocket, precision-engineered for durability and lightweight efficiency. Constructed from a specially enhanced 7075-T6 aluminum alloy, this sprocket offers exceptional strength while...12112465- SKU:
- 12112465
- Availability:
- Ships Same Business Day
- Weight:
- 0.65 LBS
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- OFF-ROAD
- TOOTH COUNT:
- 46
- CHAIN SIZE:
- 420
- COLOR/FINISH:
- ORANGE
- MATERIAL:
- 7075-T6 ALUMINUM
- MOUNTING POSITION:
- REAR
- TYPE:
- DRIVE
- UNITS:
- EACH
$104.61 -
Renthal 48T Rear Sprocket Orange 420 Chain KTM 65 SX 192U-420-48GPOR
RENTHAL
$104.61Enhance your off-road performance with the RENTHAL Orange Rear Sprocket, precision-engineered for durability and lightweight efficiency. Crafted from a specially enhanced 7075-T6 aluminum alloy, this sprocket features self-cleaning mud grooves at each...12112467- SKU:
- 12112467
- Availability:
- Ships Same Business Day
- Weight:
- 0.70 LBS
- CHAIN SIZE:
- 420
- COLOR/FINISH:
- ORANGE
- MATERIAL:
- 7075-T6 ALUMINUM
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- TOOTH COUNT:
- 48
- TYPE:
- DRIVE
$104.61 -
Renthal 50-Tooth Rear Sprocket 420 Chain 192U-420-50GPOR
RENTHAL
$104.61Enhance your off-road performance with the RENTHAL Orange Rear Sprocket, featuring a 50-tooth design and precision CNC-machined from a specially enhanced 7075-T6 aluminum alloy. This sprocket offers an ultralight design that is 66% lighter than steel,...12112468- SKU:
- 12112468
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
- TYPE:
- DRIVE
- UNITS:
- EACH
- CHAIN SIZE:
- 420
- COLOR/FINISH:
- ORANGE
- MATERIAL:
- 7075-T6 ALUMINUM
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- OFF-ROAD
- TOOTH COUNT:
- 50
- MOUNTING POSITION:
- REAR
$104.61 -
Renthal 47-Tooth Rear Sprocket Orange 224U-520-47GPOR
RENTHAL
$104.61Enhance your off-road performance with the RENTHAL Rear Sprocket 47-Tooth Orange 224U-520-47GPOR. Crafted from a specially enhanced 7075-T6 aluminum alloy, this sprocket offers exceptional strength while being 66% lighter than steel. Its precision...12112473- SKU:
- 12112473
- Availability:
- Ships Same Business Day
- Weight:
- 0.90 LBS
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- OFF-ROAD
- TOOTH COUNT:
- 47
- CHAIN SIZE:
- 520
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- STREET
- TYPE:
- DRIVE
- COLOR/FINISH:
- ORANGE
- MATERIAL:
- 7075-T6 ALUMINUM
- UNITS:
- EACH
$104.61 -
Renthal Ultralight Grooved Rear Sprocket 49 Teeth Orange 224U-520-49GPOR
RENTHAL
$104.61Enhance your off-road performance with the RENTHAL Rear Sprocket, featuring a 49-tooth configuration and vibrant orange finish. Crafted from a specially enhanced 7075-T6 aluminum alloy, this sprocket offers exceptional durability while being 66% lighter...12112475- SKU:
- 12112475
- Availability:
- Ships Same Business Day
- Weight:
- 0.95 LBS
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- OFF-ROAD
- TOOTH COUNT:
- 49
- MOUNTING POSITION:
- REAR
- TYPE:
- DRIVE
- UNITS:
- EACH
- CHAIN SIZE:
- 520
- COLOR/FINISH:
- ORANGE
- MATERIAL:
- 7075-T6 ALUMINUM
- RIDING STYLE:
- STREET
$104.61 -
Renthal 46T Rear Sprocket Orange 428 Chain Husqvarna TC85 441U-428-46GPOR
RENTHAL
$104.61Enhance your off-road performance with the RENTHAL Rear Sprocket 46-Tooth Orange 441U-428-46GPOR. Crafted from a specially enhanced 7075-T6 aluminum alloy, this sprocket offers exceptional durability while being 66% lighter than steel. Its precision...12112482- SKU:
- 12112482
- Availability:
- Ships Same Business Day
- Weight:
- 0.70 LBS
- COLOR/FINISH:
- ORANGE
- MATERIAL:
- 7075-T6 ALUMINUM
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- OFF-ROAD
- TOOTH COUNT:
- 46
- UNITS:
- EACH
- TYPE:
- DRIVE
$104.61 -
Renthal 47-Tooth Rear Sprocket for 428 Chain Gas Gas Husqvarna KTM Orange 441U-428-47GPOR
RENTHAL
$104.61Enhance your off-road performance with the RENTHAL Rear Sprocket 47-Tooth Orange 441U-428-47GPOR. Crafted from a specially enhanced 7075-T6 aluminum alloy, this sprocket offers exceptional durability while being 66% lighter than steel counterparts. Its...12112483- SKU:
- 12112483
- Availability:
- Ships Same Business Day
- Weight:
- 0.70 LBS
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- DRIVE
- TOOTH COUNT:
- 47
- UNITS:
- EACH
- COLOR/FINISH:
- ORANGE
- MATERIAL:
- 7075-T6 ALUMINUM
$104.61 -
Renthal Rear Sprocket 48T 428 Chain Orange 441U-428-48GPOR
RENTHAL
$104.61Enhance your off-road performance with the RENTHAL Rear Sprocket, featuring a 48-tooth configuration and vibrant orange finish. Constructed from a specially enhanced 7075-T6 aluminum alloy, this sprocket offers exceptional strength while being 66%...12112484- SKU:
- 12112484
- Availability:
- Ships Same Business Day
- Weight:
- 0.70 LBS
- COLOR/FINISH:
- ORANGE
- MATERIAL:
- 7075-T6 ALUMINUM
- TYPE:
- DRIVE
- UNITS:
- EACH
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- OFF-ROAD
- TOOTH COUNT:
- 48
$104.61 -
Renthal Ultralight Rear Sprocket 49T 428 Chain Pitch Orange 441U-428-49GPOR
RENTHAL
$104.61Enhance your off-road performance with the RENTHAL Rear Sprocket, featuring a 49-tooth configuration and vibrant orange finish. Crafted from a specially enhanced 7075-T6 aluminum alloy, this sprocket offers exceptional durability while being 66% lighter...12112485- SKU:
- 12112485
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- OFF-ROAD
- TOOTH COUNT:
- 49
- COLOR/FINISH:
- ORANGE
- MATERIAL:
- 7075-T6 ALUMINUM
- MOUNTING POSITION:
- REAR
- TYPE:
- DRIVE
- UNITS:
- EACH
$104.61 -
Renthal Rear Sprocket 40T Orange 415 Chain 491-415-40P-OR
RENTHAL
$104.61Enhance your motorcycle's performance with the RENTHAL Rear Sprocket, crafted from high-strength 7075-T6 aluminum alloy. This ultralight sprocket is 66% lighter than steel, yet incredibly durable, featuring self-cleaning mud grooves at each tooth to...12112491- SKU:
- 12112491
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- TOOTH COUNT:
- 40
- UNITS:
- EACH
- CHAIN SIZE:
- 415
- COLOR/FINISH:
- ORANGE
- MATERIAL:
- 7075-T6 ALUMINUM
- RIDING STYLE:
- OFF-ROAD
- MOUNTING POSITION:
- REAR
- TYPE:
- DRIVE
- PRODUCT NAME:
- SPROCKET
$104.61 -
Renthal 48-Tooth Black Rear Sprocket for Honda 154U-520-48GRBK
RENTHAL
$99.82Enhance your Honda motorcycle's performance with the RENTHAL 48-Tooth Rear Sprocket. Crafted from a specially enhanced 7075-T6 aluminum alloy, this sprocket offers exceptional strength while being 66% lighter than traditional steel options. Its...12110030- SKU:
- 12110030
- Availability:
- Ships Same Business Day
- Weight:
- 0.85 LBS
- MOUNTING POSITION:
- REAR
- TYPE:
- DRIVE
- UNITS:
- EACH
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 48
- COLOR/FINISH:
- BLACK
- MATERIAL:
- 7075-T6 ALUMINUM
- RIDING STYLE:
- OFF-ROAD
- CHAIN SIZE:
- 520
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
$99.82
