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
-
SUPERSPROX Edge Rear Sprocket Insert - Green RACD47843GRN
SUPERSPROX
$10.95A stamped steel sprocket limits your drivetrain's potential by introducing flex and wear inconsistencies under load. The SUPERSPROX Edge Rear Sprocket Insert upgrades you to precision-manufactured performance with superior rigidity and longevity,...12102351- SKU:
- 12102351
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- PRODUCT NAME:
- INSERT
- TYPE:
- EDGE REAR
- COLOR/FINISH:
- GREEN
- UNITS:
- EACH
- RIDING STYLE:
- STREET
$10.95 -
SUPERSPROX Edge Rear Sprocket Insert - Gold RACD47846GLD
SUPERSPROX
$10.95A worn or damaged rear sprocket can compromise your bike's acceleration, chain wear, and overall drivetrain efficiency. The SUPERSPROX Edge Rear Sprocket Insert delivers precision engineering in a bolt-on package, replacing traditional stamped steel with...12102352- SKU:
- 12102352
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- PRODUCT NAME:
- INSERT
- UNITS:
- EACH
- COLOR/FINISH:
- GOLD
- TYPE:
- EDGE REAR
- RIDING STYLE:
- STREET
$10.95 -
SUPERSPROX Edge Rear Sprocket Insert - Green RACD47846GRN
SUPERSPROX
$10.95Traditional stamped steel sprockets flex under load and wear unevenly, robbing you of consistent power delivery and forcing premature replacement. The SUPERSPROX Edge Rear Sprocket Insert upgrades your drivetrain with precision-engineered construction...12102353- SKU:
- 12102353
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- GREEN
- UNITS:
- EACH
- PRODUCT NAME:
- INSERT
- TYPE:
- EDGE REAR
$10.95 -
SUPERSPROX Edge Rear Sprocket Insert - Blue RACD48043BLU
SUPERSPROX
$10.95A worn or damaged rear sprocket can compromise your entire drivetrain's efficiency and acceleration response. The SUPERSPROX Edge Rear Sprocket Insert upgrades you from traditional stamped steel to precision-engineered construction, delivering improved...12102354- SKU:
- 12102354
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- COLOR/FINISH:
- BLUE
- PRODUCT NAME:
- INSERT
- TYPE:
- EDGE REAR
- UNITS:
- EACH
- RIDING STYLE:
- STREET
$10.95 -
On Sale
SUPERSPROX Edge Rear Sprocket Insert - Gold RACD80745GLD
SUPERSPROX
MSRP: $10.95Now: $7.00Was: $10.95A worn or damaged rear sprocket compromises your chain drive efficiency, reducing power transfer and accelerating wear on your entire drivetrain. The SUPERSPROX Edge Rear Sprocket Insert in gold combines precision CNC-machined construction with modern...12102365- SKU:
- 12102365
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- COLOR/FINISH:
- GOLD
- PRODUCT NAME:
- INSERT
- TYPE:
- EDGE REAR
- UNITS:
- EACH
- RIDING STYLE:
- STREET
MSRP: $10.95Now: $7.00Was: $10.95 -
On Sale
SUPERSPROX Edge Rear Sprocket Insert - Blue RACD82945BLU
SUPERSPROX
MSRP: $10.95Now: $7.00Was: $10.95A quality rear sprocket insert directly impacts your bike's acceleration response, chain longevity, and overall drivetrain reliability. SUPERSPROX Edge inserts replace traditional stamped steel with precision-engineered construction, reducing wear on...12102366- SKU:
- 12102366
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- INSERT
- TYPE:
- EDGE REAR
- UNITS:
- EACH
- COLOR/FINISH:
- BLUE
MSRP: $10.95Now: $7.00Was: $10.95 -
On Sale
SUPERSPROX Edge Rear Sprocket Insert - Blue RACD82947BLU
SUPERSPROX
MSRP: $10.95Now: $7.00Was: $10.95Traditional stamped steel sprockets flex under load and wear unevenly, robbing you of consistent power delivery and forcing premature replacements. The SUPERSPROX Edge Rear Sprocket Insert upgrades your drivetrain with precision-engineered construction...12102368- SKU:
- 12102368
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- COLOR/FINISH:
- BLUE
- PRODUCT NAME:
- INSERT
- TYPE:
- EDGE REAR
MSRP: $10.95Now: $7.00Was: $10.95 -
On Sale
SUPERSPROX Edge Rear Sprocket Insert - Gold RACD82947GLD
SUPERSPROX
MSRP: $10.95Now: $7.00Was: $10.95A quality rear sprocket insert directly impacts your bike's acceleration response, chain longevity, and overall drivetrain reliability. Traditional stamped steel sprockets wear unevenly and can develop flat spots that degrade performance—the SUPERSPROX...12102369- SKU:
- 12102369
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- COLOR/FINISH:
- GOLD
- PRODUCT NAME:
- INSERT
- TYPE:
- EDGE REAR
- UNITS:
- EACH
- RIDING STYLE:
- STREET
MSRP: $10.95Now: $7.00Was: $10.95 -
On Sale
SUPERSPROX Edge Rear Sprocket Insert - Gold RACD86545GLD
SUPERSPROX
MSRP: $10.95Now: $7.00Was: $10.95A worn or damaged rear sprocket insert compromises power delivery, increases drivetrain noise, and accelerates wear on your chain and countershaft. The SUPERSPROX Edge Rear Sprocket Insert upgrades you from traditional stamped steel to a...12102372- SKU:
- 12102372
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- COLOR/FINISH:
- GOLD
- PRODUCT NAME:
- INSERT
- TYPE:
- EDGE REAR
- UNITS:
- EACH
- RIDING STYLE:
- STREET
MSRP: $10.95Now: $7.00Was: $10.95 -
SUPERSPROX Edge Rear Sprocket - Black - 45-Tooth RFA130445BLK
SUPERSPROX
$59.95The SUPERSPROX Edge Rear Sprocket delivers measurable weight savings without compromising durability, making it an ideal upgrade for riders seeking improved acceleration and reduced rotational mass. As a cost-effective mid-range option, it provides...12102377- SKU:
- 12102377
- Availability:
- Ships Same Business Day
- Weight:
- 2.30 LBS
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- LIGHTWEIGHT
- COLOR/FINISH:
- BLACK
- COLOR/FINISH:
- ZINC
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 45
- UNITS:
- EACH
- MODEL:
- EDGE
$59.95 -
SUPERSPROX Edge Rear Sprocket - Black - 46-Tooth RFA130746BLK
SUPERSPROX
$59.95If you're running a mid-range bike and want meaningful weight savings without breaking the bank, the SUPERSPROX Edge Rear Sprocket delivers. This 46-tooth sprocket cuts 5–15% off your unsprung mass, translating to faster acceleration and improved...12102380- SKU:
- 12102380
- Availability:
- Ships Same Business Day
- Weight:
- 2.10 LBS
- MODEL:
- EDGE
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 46
- COLOR/FINISH:
- BLACK
- COLOR/FINISH:
- ZINC
- MATERIAL:
- STEEL
- STYLE:
- LIGHTWEIGHT
$59.95Qty in Cart: 0Quantity:Price:$59.95Subtotal: -
SUPERSPROX Edge Rear Sprocket - Black - 43-Tooth RFA30243BLK
SUPERSPROX
$54.95If you're running a mid-range bike and want measurable performance gains without breaking the bank, the SUPERSPROX Edge Rear Sprocket delivers exactly what you need. This 43-tooth sprocket cuts parasitic weight by 5–15% depending on your model, improving...12102386- SKU:
- 12102386
- Availability:
- Ships Same Business Day
- Weight:
- 2.05 LBS
- COLOR/FINISH:
- ZINC
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- LIGHTWEIGHT
- UNITS:
- EACH
- MODEL:
- EDGE
- TOOTH COUNT:
- 43
- COLOR/FINISH:
- BLACK
$54.95 -
SUPERSPROX Edge Rear Sprocket - Black - 45-Tooth RFA80745BLK
SUPERSPROX
$54.95The SUPERSPROX Edge Rear Sprocket delivers measurable weight savings without compromising durability, making it an ideal upgrade for riders seeking improved acceleration and handling response. By reducing unsprung weight at the rear wheel, you'll...12102394- SKU:
- 12102394
- Availability:
- Ships Same Business Day
- Weight:
- 1.90 LBS
- MODEL:
- EDGE
- MOUNTING POSITION:
- REAR
- COLOR/FINISH:
- BLACK
- COLOR/FINISH:
- ZINC
- MATERIAL:
- STEEL
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 45
- UNITS:
- EACH
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- LIGHTWEIGHT
$54.95 -
SUPERSPROX Steel Rear Sprocket - 40-Tooth RFE-853-40-BLK
SUPERSPROX
$44.95A worn or undersized rear sprocket limits your engine's ability to transfer power efficiently to the wheel, causing sluggish acceleration and increased drivetrain wear. The SUPERSPROX 40-tooth steel sprocket combines race-proven durability with a...12101932- SKU:
- 12101932
- Availability:
- Ships Same Business Day
- Weight:
- 1.15 LBS
- MATERIAL:
- STEEL
- PRODUCT NAME:
- SPROCKET
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- OFF-ROAD
- TOOTH COUNT:
- 40
- TYPE:
- REAR
- UNITS:
- EACH
$44.95 -
SUPERSPROX Stealth Rear Sprocket - 48-Tooth - Gold - Yamaha RST-245-48-GLD
SUPERSPROX
$119.95Supersprox-Stealth rear sprockets deliver the durability of steel teeth with the weight savings of an aluminum core—a combination that extends drivetrain life while maintaining responsive handling. If you're serious about sustained performance without...12101980- SKU:
- 12101980
- Availability:
- Ships Same Business Day
- Weight:
- 1.85 LBS
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- UNITS:
- EACH
- COLOR/FINISH:
- GOLD
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- TOOTH COUNT:
- 48
- TYPE:
- REAR
- CHAIN SIZE:
- 520
- COLOR/FINISH:
- STEALTH
- MATERIAL:
- ALUMINUM
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- SPROCKET
$119.95 -
SUPERSPROX Stealth Rear Sprocket - 48-Tooth - Gold - Kawasaki RST-808-48-GLD
SUPERSPROX
$119.95Rear sprocket wear is one of the fastest wear items on any motorcycle, and choosing the wrong material means replacing it every season. The SUPERSPROX Stealth combines a lightweight aluminum core with hardened steel teeth, giving you the durability of a...12102043- SKU:
- 12102043
- Availability:
- Ships Same Business Day
- Weight:
- 1.80 LBS
- CHAIN SIZE:
- 520
- MATERIAL:
- ALUMINUM
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- COLOR/FINISH:
- GOLD
- COLOR/FINISH:
- STEALTH
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- TOOTH COUNT:
- 48
- TYPE:
- REAR
$119.95 -
SUPERSPROX Stealth Rear Sprocket - 51-Tooth - Gold - Kawasaki RST-808-51-GLD
SUPERSPROX
$119.95Rear sprocket wear is one of the fastest-wearing drivetrain components, and stock aluminum options can leave you stranded mid-season. The SUPERSPROX Stealth 51-tooth sprocket combines a steel-tooth design with a lightweight aluminum core, delivering four...12102046- SKU:
- 12102046
- Availability:
- Ships Same Business Day
- Weight:
- 2.00 LBS
- COLOR/FINISH:
- GOLD
- COLOR/FINISH:
- STEALTH
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- REAR
- UNITS:
- EACH
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- CHAIN SIZE:
- 520
- MATERIAL:
- ALUMINUM
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- STREET
- TOOTH COUNT:
- 51
$119.95 -
SUPERSPROX Stealth Rear Sprocket - 52-Tooth - Gold - Kawasaki RST-808-52-GLD
SUPERSPROX
$119.95If you're running a high-displacement Kawasaki and tired of replacing worn sprockets every season, the SUPERSPROX Stealth delivers the durability of steel without the weight penalty. The hybrid steel-tooth, aluminum-core design gives you four times the...12102047- SKU:
- 12102047
- Availability:
- Ships Same Business Day
- Weight:
- 2.10 LBS
- MATERIAL:
- ALUMINUM
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- REAR
- UNITS:
- EACH
- CHAIN SIZE:
- 520
- COLOR/FINISH:
- STEALTH
- RIDING STYLE:
- STREET
- TOOTH COUNT:
- 52
- COLOR/FINISH:
- GOLD
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
$119.95 -
SUPERSPROX Stealth Rear Sprocket - 50-Tooth - Gold - Husaberg RST-990-50-GLD
SUPERSPROX
$119.95The Supersprox Stealth 50-tooth rear sprocket delivers a rare balance of lightweight performance and exceptional durability—steel teeth that outlast aluminum by 4x while the forged aluminum core keeps rotational mass minimal. If you're running a...12102058- SKU:
- 12102058
- Availability:
- Ships Same Business Day
- Weight:
- 1.95 LBS
- CHAIN SIZE:
- 520
- COLOR/FINISH:
- STEALTH
- MATERIAL:
- ALUMINUM
- RIDING STYLE:
- STREET
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 50
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- REAR
- UNITS:
- EACH
- COLOR/FINISH:
- GOLD
$119.95 -
SUPERSPROX Stealth Rear Sprocket - 51-Tooth - Gold - Husaberg RST-990-51-GLD
SUPERSPROX
$119.95If you're running a high-displacement bike and want sprocket durability without the weight penalty, the SUPERSPROX Stealth delivers a rare combination: steel teeth that outlast aluminum by 4x, paired with a 70% lighter aluminum core. This is the...12102059- SKU:
- 12102059
- Availability:
- Ships Same Business Day
- Weight:
- 2.00 LBS
- COLOR/FINISH:
- GOLD
- COLOR/FINISH:
- STEALTH
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- REAR
- UNITS:
- EACH
- CHAIN SIZE:
- 520
- MATERIAL:
- ALUMINUM
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- STREET
- TOOTH COUNT:
- 51
$119.95
