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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JT SPROCKETS Sprocket - Rear - Suzuki - 48-Tooth JTR1791.48
JT SPROCKETS
$42.88A worn or incorrect rear sprocket directly impacts acceleration, top-end speed, and overall drivetrain efficiency on your Suzuki. The JT Sprockets 48-tooth rear sprocket delivers the precision engineering and durability required for consistent...12101725- SKU:
- 12101725
- Availability:
- Ships Same Business Day
- Weight:
- 2.15 LBS
- COLOR/FINISH:
- NATURAL
- MATERIAL:
- CARBON STEEL
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- STREET
- CHAIN SIZE:
- 525
- PRODUCT NAME:
- SPROCKET
- UNITS:
- EACH
- MODEL:
- SUZUKI
- TOOTH COUNT:
- 48
- TYPE:
- REAR
$42.88 -
JT SPROCKETS Sprocket - Rear - Honda - 42-Tooth JTR210.42
JT SPROCKETS
$27.75A worn or mismatched rear sprocket directly impacts your Honda's acceleration, top-end speed, and overall drivetrain efficiency. The JT Sprockets 42-tooth rear sprocket is engineered to deliver consistent power transfer with minimal deflection, ensuring...12101726- SKU:
- 12101726
- Availability:
- Ships Same Business Day
- Weight:
- 1.45 LBS
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- OFF-ROAD
- TOOTH COUNT:
- 42
- TYPE:
- REAR
- UNITS:
- EACH
- CHAIN SIZE:
- 520
- PRODUCT NAME:
- SPROCKET
- MATERIAL:
- CARBON STEEL
- MODEL:
- HONDA
- MOUNTING POSITION:
- REAR
$27.75 -
JT SPROCKETS Sprocket - Rear - Honda - 43-Tooth JTR210.43
JT SPROCKETS
$27.75A rear sprocket is your final drive ratio—get it wrong, and you're leaving power on the table or spinning out prematurely. The JT Sprockets 43-tooth rear sprocket delivers the balance of acceleration and top-end speed your bike needs, without sacrificing...12101727- SKU:
- 12101727
- Availability:
- Ships Same Business Day
- Weight:
- 1.60 LBS
- MODEL:
- HONDA
- PRODUCT NAME:
- SPROCKET
- CHAIN SIZE:
- 520
- MOUNTING POSITION:
- REAR
- TOOTH COUNT:
- 43
- MATERIAL:
- CARBON STEEL
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- REAR
- UNITS:
- EACH
$27.75 -
JT SPROCKETS Sprocket - Kawasaki - 39-Tooth JTR801.39
JT SPROCKETS
$13.25A quality sprocket is fundamental to reliable power transfer and chain longevity on your Kawasaki. JT's 39-tooth sprocket delivers the precision engineering and material durability that separate dependable components from those that fail under sustained...12101729- SKU:
- 12101729
- Availability:
- Ships Same Business Day
- Weight:
- 1.05 LBS
- PRODUCT NAME:
- SPROCKET
- MOUNTING POSITION:
- REAR
- UNITS:
- EACH
- CHAIN SIZE:
- 420
- COLOR/FINISH:
- BLACK
- MATERIAL:
- CARBON STEEL
- MODEL:
- KAWASAKI
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- REAR
- TOOTH COUNT:
- 39
$13.25 -
JT SPROCKETS Rear Sprocket - Orange - 50-Tooth JTA897.50ORG
JT SPROCKETS
$40.35A properly sized rear sprocket is critical to maximizing acceleration, top-end speed, and drivetrain efficiency. The JT SPROCKETS 50-tooth rear sprocket delivers the durability and precision fit your bike demands, whether you're chasing lap times or...12112693- SKU:
- 12112693
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
- CHAIN SIZE:
- 520
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- MOUNTING POSITION:
- REAR
- COLOR/FINISH:
- ORANGE
- MATERIAL:
- 7075-T6 ALUMINUM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- TYPE:
- REAR
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- OFF-ROAD
- TOOTH COUNT:
- 50
$40.35 -
JT SPROCKETS Rear Sprocket - Orange - 52-Tooth JTA897.52ORG
JT SPROCKETS
$42.53A properly sized rear sprocket is critical for optimizing your bike's acceleration, top-end speed, and overall power delivery. The JT Sprockets 52-Tooth RaceLite delivers the durability and precision required for high-RPM racing applications, whether...12112695- SKU:
- 12112695
- Availability:
- Ships Same Business Day
- Weight:
- 1.05 LBS
- CHAIN SIZE:
- 520
- COLOR/FINISH:
- ORANGE
- MATERIAL:
- 7075-T6 ALUMINUM
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- STREET
- TOOTH COUNT:
- 52
- UNITS:
- EACH
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- TYPE:
- REAR
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- OFF-ROAD
$42.53 -
JT SPROCKETS Rear Sprocket - 45 Tooth JTR210.45SC
JT SPROCKETS
$29.55A rear sprocket is fundamental to your drivetrain's efficiency and acceleration characteristics. The JT Sprockets 45-tooth rear sprocket delivers precision engineering and durability without unnecessary weight, directly improving throttle response and...12102492- SKU:
- 12102492
- Availability:
- Ships Same Business Day
- Weight:
- 1.40 LBS
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 45
- CHAIN SIZE:
- 520
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- STREET
- MATERIAL:
- CARBON STEEL
- UNITS:
- EACH
$29.55 -
JT SPROCKETS Sprocket - Rear - Yamaha - 43-Tooth JTR853.43
JT SPROCKETS
$25.15A sprocket is only as good as its ability to survive repetitive load cycles without deformation or premature wear. The JT Sprockets 43-Tooth rear sprocket for Yamaha combines precision computer-aided design with premium C45 high-carbon steel to deliver...JTR85343- SKU:
- JTR85343
- Availability:
- Ships Same Business Day
- Weight:
- 1.70 LBS
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- ATV
- CHAIN SIZE:
- 520
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- TOOTH COUNT:
- 43
- MOUNTING POSITION:
- REAR
$25.15 -
JT SPROCKETS Sprocket - Rear - Yamaha - 45-Tooth JTR853.45
JT SPROCKETS
$27.78A worn or undersized rear sprocket robs your Yamaha of acceleration and top-end performance. The JT Sprockets 45-tooth rear sprocket delivers the durability and precision engineering that professional and amateur racers demand, engineered to handle...JTR85345- SKU:
- JTR85345
- Availability:
- Ships Same Business Day
- Weight:
- 2.00 LBS
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- TOOTH COUNT:
- 45
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- CHAIN SIZE:
- 520
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
$27.78 -
JT SPROCKETS Sprocket - Rear - Yamaha - 48-Tooth JTR853.48
JT SPROCKETS
$30.75A worn or inadequate rear sprocket directly impacts your bike's acceleration, top-end performance, and overall drivetrain efficiency. The JT SPROCKETS 48-tooth rear sprocket is engineered for Yamaha applications where precision gear ratios demand a...JTR85348- SKU:
- JTR85348
- Availability:
- Ships Same Business Day
- Weight:
- 2.10 LBS
- MATERIAL:
- STEEL
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 48
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- CHAIN SIZE:
- 520
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
$30.75 -
JT SPROCKETS Sprocket - Rear - Yamaha - 49-Tooth JTR853.49
JT SPROCKETS
$31.33A rear sprocket is critical to your drivetrain's efficiency and acceleration response—the right tooth count directly impacts your bike's power delivery and top-end performance. The JT Sprockets 49-tooth rear sprocket combines precision engineering with...JTR85349- SKU:
- JTR85349
- Availability:
- Ships Same Business Day
- Weight:
- 2.30 LBS
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- CHAIN SIZE:
- 520
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 49
$31.33 -
JT SPROCKETS Sprocket - Rear - Yamaha - 50-Tooth JTR853.50
JT SPROCKETS
$31.33A lightweight rear sprocket is one of the most effective upgrades for reducing unsprung rotating weight, directly improving acceleration and handling response. The JT Sprockets 50-tooth rear sprocket combines precision engineering with proven materials...JTR85350- SKU:
- JTR85350
- Availability:
- Ships Same Business Day
- Weight:
- 2.40 LBS
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- ATV
- TOOTH COUNT:
- 50
- UNITS:
- EACH
- CHAIN SIZE:
- 520
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
$31.33 -
JT SPROCKETS Sprocket - Rear - Yamaha - 52-Tooth JTR853.52
JT SPROCKETS
$32.10A worn or mismatched rear sprocket directly impacts acceleration, top-end speed, and overall drivetrain efficiency—making sprocket selection critical for both track performance and street reliability. The JT Sprockets 52-tooth rear sprocket delivers the...JTR85352- SKU:
- JTR85352
- Availability:
- Ships Same Business Day
- Weight:
- 2.90 LBS
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- ATV
- CHAIN SIZE:
- 520
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- MOUNTING POSITION:
- REAR
- TOOTH COUNT:
- 52
$32.10 -
JT SPROCKETS Sprocket - Rear - Yamaha - 42-Tooth JTR857.42
JT SPROCKETS
$27.85A worn or incorrectly sized rear sprocket robs your Yamaha of power delivery and acceleration efficiency—this JT 42-tooth sprocket restores optimal chain-to-wheel ratios for responsive, predictable performance. Computer-designed and manufactured to...JTR85742- SKU:
- JTR85742
- Availability:
- Ships Same Business Day
- Weight:
- 1.80 LBS
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- CHAIN SIZE:
- 520
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- MATERIAL:
- STEEL
- RIDING STYLE:
- ATV
- TOOTH COUNT:
- 42
- UNITS:
- EACH
$27.85 -
JT SPROCKETS Sprocket - Rear - Yamaha - 43-Tooth JTR857.43
JT SPROCKETS
$28.78A worn or damaged rear sprocket directly impacts your power delivery, acceleration, and overall drivetrain efficiency. The JT Sprockets 43-Tooth rear sprocket for Yamaha combines computer-optimized design with premium C45 high-carbon steel to deliver...JTR85743- SKU:
- JTR85743
- Availability:
- Ships Same Business Day
- Weight:
- 2.00 LBS
- CHAIN SIZE:
- 520
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- TOOTH COUNT:
- 43
- UNITS:
- EACH
- MOUNTING POSITION:
- REAR
- MATERIAL:
- STEEL
- PRODUCT NAME:
- SPROCKET
$28.78 -
JT SPROCKETS Sprocket - Rear - Yamaha - 45-Tooth JTR857.45
JT SPROCKETS
$28.78A quality rear sprocket is critical to your power delivery and drivetrain longevity. JT's 45-tooth sprocket combines computer-optimized design with premium C45 high-carbon steel to deliver the strength you need without unnecessary weight. Whether you're...JTR85745- SKU:
- JTR85745
- Availability:
- Ships Same Business Day
- Weight:
- 1.80 LBS
- CHAIN SIZE:
- 520
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- MATERIAL:
- STEEL
- TOOTH COUNT:
- 45
$28.78 -
JT SPROCKETS Sprocket - Rear - Husaberg/KTM - 38-Tooth JTR897.38
JT SPROCKETS
$27.20A worn or incorrect rear sprocket directly impacts your bike's acceleration, top-end speed, and overall drivetrain efficiency. The JT Sprockets 38-tooth rear sprocket is engineered for Husaberg and KTM machines, delivering the strength-to-weight ratio...JTR89738- SKU:
- JTR89738
- Availability:
- Ships Same Business Day
- Weight:
- 1.50 LBS
- RIDING STYLE:
- OFF-ROAD
- CHAIN SIZE:
- 520
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- MATERIAL:
- STEEL
- TOOTH COUNT:
- 38
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- UNITS:
- EACH
$27.20 -
JT SPROCKETS Sprocket - Rear - Yamaha - 35-Tooth JTR834.35
JT SPROCKETS
$14.33A properly sized rear sprocket is fundamental to optimizing your Yamaha's acceleration, top-end speed, and overall power delivery. The JT Sprockets 35-tooth rear sprocket delivers the precision engineering and durability demanded by competitive riders...12100660- SKU:
- 12100660
- Availability:
- Ships Same Business Day
- Weight:
- 1.16 LBS
- CHAIN SIZE:
- 420
- MOUNTING POSITION:
- REAR
- TOOTH COUNT:
- 35
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
$14.33 -
JT SPROCKETS Sprocket - Rear - KTM - 46-Tooth JTR894.46
JT SPROCKETS
$18.60A quality rear sprocket is fundamental to your KTM's power delivery and acceleration characteristics. This 46-tooth JT sprocket is engineered for durability under high-load conditions while maintaining the precision tolerances necessary for consistent...12100661- SKU:
- 12100661
- Availability:
- Ships Same Business Day
- Weight:
- 1.25 LBS
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- TOOTH COUNT:
- 46
- CHAIN SIZE:
- 420
- MATERIAL:
- STEEL
- PRODUCT NAME:
- SPROCKET
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
$18.60 -
JT SPROCKETS Rear Sprocket - Suzuki - Black - 51-Tooth JTA808.51BLK
JT SPROCKETS
$41.43Rear sprocket selection directly impacts your Suzuki's acceleration, top-end speed, and overall powertrain efficiency. The JT RaceLite 51-tooth sprocket delivers the durability and precision necessary for consistent performance, whether you're pushing...12112671- SKU:
- 12112671
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
- CHAIN SIZE:
- 520
- MATERIAL:
- 7075-T6 ALUMINUM
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- TYPE:
- REAR
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- OFF-ROAD
- TOOTH COUNT:
- 51
$41.43
