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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On Sale
Renthal 50-Tooth Rear Sprocket for Kawasaki 112U-520-50GESI
RENTHAL
MSRP: $99.82Now: $85.00Was: $99.82Enhance your Kawasaki motorcycle's performance with the RENTHAL 50-Tooth Rear Sprocket. Crafted from a specially enhanced 7075-T6 aluminum alloy, this sprocket offers a perfect blend of strength and lightweight design, making it an ideal choice for...R112B50- SKU:
- R112B50
- Availability:
- Ships Same Business Day
- Weight:
- 0.95 LBS
- MATERIAL:
- 7075-T6 ALUMINUM
- RIDING STYLE:
- OFF-ROAD
- TOOTH COUNT:
- 50
- TYPE:
- DRIVE
- COLOR/FINISH:
- SILVER
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- UNITS:
- EACH
- CHAIN SIZE:
- 520
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- STREET
MSRP: $99.82Now: $85.00Was: $99.82 -
On Sale
Renthal 47-Tooth Rear Sprocket for Suzuki RM80 RM85 RM85L and Yamaha YZ80 YZ85 YZ85LW 121U-428-47GPSI
RENTHAL
MSRP: $99.82Now: $85.00Was: $99.82Enhance your Suzuki's performance with the RENTHAL 47-Tooth Rear Sprocket, precision-engineered from a specially enhanced 7075-T6 aluminum alloy. This ultralight sprocket is approximately 66% lighter than traditional steel options, yet offers exceptional...R121A47- SKU:
- R121A47
- Availability:
- Ships Same Business Day
- Weight:
- 0.88 LBS
- CHAIN SIZE:
- 428
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- UNITS:
- EACH
- COLOR/FINISH:
- SILVER
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- DRIVE
- MATERIAL:
- 7075-T6 ALUMINUM
- TOOTH COUNT:
- 47
MSRP: $99.82Now: $85.00Was: $99.82 -
On Sale
Renthal Ultralight Rear Sprocket 47T 520 Chain Silver 123U-520-47GYSI
RENTHAL
MSRP: $99.82Now: $85.00Was: $99.82Enhance your Suzuki's performance with the RENTHAL 47-Tooth Rear Sprocket, precision-engineered from high-grade 7075-T6 aluminum alloy. This ultralight sprocket is 66% lighter than traditional steel options, offering improved acceleration and handling...R12347- SKU:
- R12347
- Availability:
- Ships Same Business Day
- Weight:
- 0.88 LBS
- COLOR/FINISH:
- SILVER
- MATERIAL:
- 7075-T6 ALUMINUM
- RIDING STYLE:
- OFF-ROAD
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- CHAIN SIZE:
- 520
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- UNITS:
- EACH
- TOOTH COUNT:
- 47
- TYPE:
- DRIVE
MSRP: $99.82Now: $85.00Was: $99.82 -
On Sale
Renthal 49-Tooth Blue Rear Sprocket for Husqvarna TC85 2014-2023 441U-428-49GPBU
RENTHAL
MSRP: $104.61Now: $89.00Was: $104.61Enhance your Husqvarna's performance with the RENTHAL 49-Tooth Rear Sprocket. Crafted from a specially enhanced 7075-T6 aluminum alloy, this sprocket offers exceptional durability while being 66% lighter than traditional steel options. Its precision CNC...12111725- SKU:
- 12111725
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
- CHAIN SIZE:
- 428
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 49
- UNITS:
- EACH
- COLOR/FINISH:
- BLUE
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- DRIVE
- MATERIAL:
- 7075-T6 ALUMINUM
MSRP: $104.61Now: $89.00Was: $104.61 -
On Sale
Renthal Ultralight Rear Sprocket 50T Blue 428 Chain Husqvarna TC85 441U-428-50GPBU
RENTHAL
MSRP: $104.61Now: $89.00Was: $104.61Enhance your Husqvarna's performance with the RENTHAL 50-Tooth Rear Sprocket, precision-engineered for durability and efficiency. Crafted from a specially enhanced 7075-T6 aluminum alloy, this sprocket offers a lightweight yet robust solution for...12111726- SKU:
- 12111726
- Availability:
- Ships Same Business Day
- Weight:
- 0.85 LBS
- MOUNTING POSITION:
- REAR
- TYPE:
- DRIVE
- CHAIN SIZE:
- 428
- UNITS:
- EACH
- COLOR/FINISH:
- BLUE
- MATERIAL:
- 7075-T6 ALUMINUM
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 50
MSRP: $104.61Now: $89.00Was: $104.61Qty in Cart: 0Quantity:Price:MSRP: $104.61Now: $89.00Was: $104.61Subtotal: -
On Sale
Renthal 46-Tooth Black Rear Sprocket for KTM 441U-520-46GPBK
RENTHAL
MSRP: $99.82Now: $85.00Was: $99.82Enhance your KTM's performance with the RENTHAL 46-Tooth Rear Sprocket. Crafted from high-quality 7075-T6 aluminum alloy, this sprocket offers a perfect balance of strength and weight savings. Its CNC-machined construction ensures precise fit and...12111877- SKU:
- 12111877
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
- MOUNTING POSITION:
- REAR
- TOOTH COUNT:
- 46
- TYPE:
- DRIVE
- PRODUCT NAME:
- SPROCKET
- MATERIAL:
- 7075-T6 ALUMINUM
- RIDING STYLE:
- OFF-ROAD
- CHAIN SIZE:
- 520
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- UNITS:
- EACH
MSRP: $99.82Now: $85.00Was: $99.82 -
On Sale
Renthal 48-Tooth Black Rear Sprocket for KTM 441U-520-48GPBK
RENTHAL
MSRP: $99.82Now: $85.00Was: $99.82Enhance your KTM's performance with the RENTHAL 48-Tooth Black Sprocket. Crafted from a specially enhanced 7075-T6 aluminum alloy, this sprocket offers exceptional durability while being 66% lighter than steel. Its CNC-machined self-cleaning mud grooves...12111878- SKU:
- 12111878
- Availability:
- Ships Same Business Day
- Weight:
- 1.05 LBS
- COLOR/FINISH:
- BLACK
- MATERIAL:
- 7075-T6 ALUMINUM
- RIDING STYLE:
- OFF-ROAD
- TOOTH COUNT:
- 48
- TYPE:
- DRIVE
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- CHAIN SIZE:
- 520
- RIDING STYLE:
- STREET
- UNITS:
- EACH
MSRP: $99.82Now: $85.00Was: $99.82 -
On Sale
Renthal 47-Tooth Blue Rear Sprocket for Yamaha YZ65 121U-420-47GBBU
RENTHAL
MSRP: $104.61Now: $89.00Was: $104.61Enhance your Yamaha YZ65's performance with the RENTHAL 47-Tooth Blue Sprocket. Crafted from a specially enhanced 7075-T6 aluminum alloy, this sprocket offers exceptional strength while being approximately 66% lighter than steel, ensuring durability...12112060- SKU:
- 12112060
- Availability:
- Ships Same Business Day
- Weight:
- 0.71 LBS
- COLOR/FINISH:
- BLUE
- TYPE:
- DRIVE
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- OFF-ROAD
- TOOTH COUNT:
- 47
- UNITS:
- EACH
- CHAIN SIZE:
- 420
- MATERIAL:
- 7075-T6 ALUMINUM
- MOUNTING POSITION:
- REAR
MSRP: $104.61Now: $89.00Was: $104.61 -
On Sale
Renthal 47T Rear Sprocket 420 Chain Orange 192U-420-47GPOR
RENTHAL
MSRP: $104.61Now: $89.00Was: $104.61The RENTHAL Orange Rear Sprocket 47-Tooth 192U-420-47GPOR is engineered for off-road enthusiasts seeking enhanced performance and durability. Constructed from a specially enhanced 7075-T6 aluminum alloy, this sprocket offers a lightweight yet robust...12112466- SKU:
- 12112466
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
- TYPE:
- DRIVE
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- OFF-ROAD
- TOOTH COUNT:
- 47
- UNITS:
- EACH
- CHAIN SIZE:
- 420
- COLOR/FINISH:
- ORANGE
- MATERIAL:
- 7075-T6 ALUMINUM
- MOUNTING POSITION:
- REAR
MSRP: $104.61Now: $89.00Was: $104.61 -
On Sale
Renthal Rear Sprocket 42T Orange 224U-520-42GPOR
RENTHAL
MSRP: $104.61Now: $89.00Was: $104.61Enhance your off-road performance with the RENTHAL Rear Sprocket, featuring a 42-tooth configuration and vibrant orange finish. Crafted from a specially enhanced 7075-T6 aluminum alloy, this sprocket offers exceptional durability while being 66% lighter...12112469- SKU:
- 12112469
- Availability:
- Ships Same Business Day
- Weight:
- 0.70 LBS
- COLOR/FINISH:
- ORANGE
- MOUNTING POSITION:
- REAR
- MATERIAL:
- 7075-T6 ALUMINUM
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- OFF-ROAD
- CHAIN SIZE:
- 520
- RIDING STYLE:
- STREET
- TOOTH COUNT:
- 42
- TYPE:
- DRIVE
- UNITS:
- EACH
MSRP: $104.61Now: $89.00Was: $104.61 -
On Sale
Renthal 44T Rear Sprocket Orange 224U-520-44GPOR
RENTHAL
MSRP: $104.61Now: $89.00Was: $104.61Enhance your off-road performance with the RENTHAL Rear Sprocket 44-Tooth Orange 224U-520-44GPOR. Crafted from a specially enhanced 7075-T6 aluminum alloy, this sprocket offers exceptional durability while being 66% lighter than steel. Its CNC-machined...12112470- SKU:
- 12112470
- Availability:
- Ships Same Business Day
- Weight:
- 0.85 LBS
- COLOR/FINISH:
- ORANGE
- MATERIAL:
- 7075-T6 ALUMINUM
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- OFF-ROAD
- TOOTH COUNT:
- 44
- CHAIN SIZE:
- 520
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- STREET
- TYPE:
- DRIVE
- UNITS:
- EACH
MSRP: $104.61Now: $89.00Was: $104.61 -
On Sale
Renthal 45T Rear Sprocket Orange 224U-520-45GPOR
RENTHAL
MSRP: $104.61Now: $89.00Was: $104.61Enhance your motorcycle's performance with the RENTHAL Rear Sprocket 45-Tooth Orange 224U-520-45GPOR. Crafted from high-strength 7075-T6 aluminum alloy, this sprocket offers exceptional durability while being 66% lighter than traditional steel sprockets...12112471- SKU:
- 12112471
- Availability:
- Ships Same Business Day
- Weight:
- 0.85 LBS
- UNITS:
- EACH
- COLOR/FINISH:
- ORANGE
- MATERIAL:
- 7075-T6 ALUMINUM
- TOOTH COUNT:
- 45
- CHAIN SIZE:
- 520
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- STREET
- TYPE:
- DRIVE
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- OFF-ROAD
MSRP: $104.61Now: $89.00Was: $104.61 -
On Sale
Renthal 46T Rear Sprocket Orange 224U-520-46GPOR
RENTHAL
MSRP: $104.61Now: $89.00Was: $104.61Enhance your off-road performance with the RENTHAL Rear Sprocket, featuring a 46-tooth configuration and vibrant orange finish. Crafted from a specially enhanced 7075-T6 aluminum alloy, this sprocket offers exceptional durability while being 66% lighter...12112472- SKU:
- 12112472
- Availability:
- Ships Same Business Day
- Weight:
- 0.85 LBS
- UNITS:
- EACH
- CHAIN SIZE:
- 520
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- STREET
- TYPE:
- DRIVE
- COLOR/FINISH:
- ORANGE
- MATERIAL:
- 7075-T6 ALUMINUM
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- OFF-ROAD
- TOOTH COUNT:
- 46
MSRP: $104.61Now: $89.00Was: $104.61 -
On Sale
Renthal 51T Ultralight Rear Sprocket Orange 224U-520-51GPOR
RENTHAL
MSRP: $104.61Now: $89.00Was: $104.61Enhance your off-road performance with the RENTHAL Rear Sprocket, featuring a 51-tooth configuration and vibrant orange finish. Crafted from high-strength 7075-T6 aluminum alloy, this sprocket offers a significant weight reduction of 66% compared to...12112477- SKU:
- 12112477
- Availability:
- Ships Same Business Day
- Weight:
- 1.10 LBS
- CHAIN SIZE:
- 520
- COLOR/FINISH:
- ORANGE
- MATERIAL:
- 7075-T6 ALUMINUM
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- OFF-ROAD
- TOOTH COUNT:
- 51
- UNITS:
- EACH
- TYPE:
- DRIVE
MSRP: $104.61Now: $89.00Was: $104.61 -
On Sale
Renthal Rear Sprocket 53T Orange 224U-520-53GPOR
RENTHAL
MSRP: $104.61Now: $89.00Was: $104.61Enhance your motorcycle's performance with the RENTHAL Rear Sprocket, featuring a 53-tooth design and vibrant orange finish. Crafted from a specially enhanced 7075-T6 aluminum alloy, this sprocket offers exceptional durability while being 66% lighter...12112479- SKU:
- 12112479
- Availability:
- Ships Same Business Day
- Weight:
- 1.10 LBS
- MOUNTING POSITION:
- REAR
- CHAIN SIZE:
- 520
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- ORANGE
- MATERIAL:
- 7075-T6 ALUMINUM
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- OFF-ROAD
- TOOTH COUNT:
- 53
- TYPE:
- DRIVE
- UNITS:
- EACH
MSRP: $104.61Now: $89.00Was: $104.61 -
On Sale
Renthal 36T Rear Sprocket Orange 415 Chain 491-415-36P-OR
RENTHAL
MSRP: $104.61Now: $89.00Was: $104.61Enhance your motorcycle's performance with the RENTHAL Rear Sprocket 36-Tooth Orange 491-415-36P-OR. Crafted from high-strength 7075-T6 aluminum alloy, this sprocket offers exceptional durability while being 66% lighter than steel counterparts. Its...12112489- SKU:
- 12112489
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- COLOR/FINISH:
- ORANGE
- MATERIAL:
- 7075-T6 ALUMINUM
- MOUNTING POSITION:
- REAR
- CHAIN SIZE:
- 415
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- OFF-ROAD
- TOOTH COUNT:
- 36
- TYPE:
- DRIVE
- UNITS:
- EACH
MSRP: $104.61Now: $89.00Was: $104.61 -
On Sale
Renthal 48-Tooth Red Rear Sprocket for Honda 154U-520-48GRRD
RENTHAL
MSRP: $104.61Now: $89.00Was: $104.61Enhance your Honda's performance with the RENTHAL 48-Tooth Rear Sprocket, crafted from high-grade 7075-T6 aluminum alloy. This ultralight sprocket is approximately 66% lighter than traditional steel options, improving acceleration and handling without...12110159- SKU:
- 12110159
- Availability:
- Ships Same Business Day
- Weight:
- 1.05 LBS
- CHAIN SIZE:
- 520
- COLOR/FINISH:
- RED
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- TYPE:
- DRIVE
- UNITS:
- EACH
- RIDING STYLE:
- OFF-ROAD
- TOOTH COUNT:
- 48
- MATERIAL:
- 7075-T6 ALUMINUM
- PRODUCT NAME:
- SPROCKET
MSRP: $104.61Now: $89.00Was: $104.61 -
On Sale
Renthal Red 50-Tooth Rear Sprocket for Honda 154U-520-50GRRD
RENTHAL
MSRP: $104.61Now: $89.00Was: $104.61Enhance your Honda motorcycle'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. Its self-cleaning mud grooves at each tooth...12110161- SKU:
- 12110161
- Availability:
- Ships Same Business Day
- Weight:
- 1.05 LBS
- TYPE:
- DRIVE
- UNITS:
- EACH
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 50
- MATERIAL:
- 7075-T6 ALUMINUM
- RIDING STYLE:
- OFF-ROAD
- CHAIN SIZE:
- 520
- COLOR/FINISH:
- RED
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
MSRP: $104.61Now: $89.00Was: $104.61 -
On Sale
Renthal 52-Tooth Red Rear Sprocket for Honda 154U-520-52GRRD
RENTHAL
MSRP: $104.61Now: $89.00Was: $104.61Enhance your Honda motorcycle's performance with the RENTHAL 52-Tooth Rear Sprocket. Crafted from high-grade 7075-T6 aluminum alloy, this sprocket offers a perfect balance of strength and lightweight design. Its advanced tooth profile and self-cleaning...12110163- SKU:
- 12110163
- Availability:
- Ships Same Business Day
- Weight:
- 1.20 LBS
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 52
- UNITS:
- EACH
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- DRIVE
- MATERIAL:
- 7075-T6 ALUMINUM
- RIDING STYLE:
- STREET
- CHAIN SIZE:
- 520
- COLOR/FINISH:
- RED
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
MSRP: $104.61Now: $89.00Was: $104.61 -
On Sale
Renthal 49-Tooth Blue Rear Sprocket for Yamaha WR YZ 150U-520-49GBBU
RENTHAL
MSRP: $104.61Now: $89.00Was: $104.61Enhance your Yamaha motorcycle's performance with the RENTHAL 49-Tooth Rear Sprocket. Crafted from high-strength 7075-T6 aluminum alloy, this sprocket offers a perfect balance of durability and lightweight design, making it an excellent upgrade for...12110165- SKU:
- 12110165
- Availability:
- Ships Same Business Day
- Weight:
- 1.01 LBS
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 49
- COLOR/FINISH:
- BLUE
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- DRIVE
- UNITS:
- EACH
- CHAIN SIZE:
- 520
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- MATERIAL:
- 7075-T6 ALUMINUM
- MOUNTING POSITION:
- REAR
MSRP: $104.61Now: $89.00Was: $104.61
