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 Sprocket - Rear - Honda - 49-Tooth JTR217.49
JT SPROCKETS
MSRP: $24.63Now: $21.92Was: $24.63A properly sized rear sprocket is essential for optimizing your Honda's power delivery and acceleration characteristics. The JT Sprockets 49-tooth rear sprocket delivers the strength and durability...JTR21749- SKU:
- JTR21749
- Availability:
- Ships Same Business Day
- Weight:
- 1.90 LBS
- MOUNTING POSITION:
- REAR
- MODEL:
- HONDA
- CHAIN SIZE:
- 428
- PRODUCT NAME:
- SPROCKET
- UNITS:
- EACH
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- TOOTH COUNT:
- 49
MSRP: $24.63Now: $21.92Was: $24.63Qty in Cart: 0Quantity:Price:MSRP: $24.63Now: $21.92Was: $24.63Subtotal: -
On Sale
JT SPROCKETS Sprocket - Rear - Honda - 55-Tooth JTR215.55
JT SPROCKETS
MSRP: $26.20Now: $23.32Was: $26.20A quality rear sprocket is fundamental to your drivetrain's efficiency and longevity. This 55-tooth JT sprocket delivers the precision engineering and material science you need to maintain power...JTR21555- SKU:
- JTR21555
- Availability:
- Ships Same Business Day
- Weight:
- 1.90 LBS
- RIDING STYLE:
- OFF-ROAD
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- MATERIAL:
- STEEL
- MODEL:
- HONDA
- CHAIN SIZE:
- 420
- TOOTH COUNT:
- 55
- UNITS:
- EACH
MSRP: $26.20Now: $23.32Was: $26.20 -
On Sale
JT SPROCKETS Sprocket - Rear - Honda - 51-Tooth JTR215.51
JT SPROCKETS
MSRP: $22.23Now: $19.78Was: $22.23A rear sprocket is fundamental to your drivetrain's performance—it directly affects acceleration, top-end speed, and overall power delivery to the rear wheel. The JT Sprockets 51-tooth rear sprocket...JTR21551- SKU:
- JTR21551
- Availability:
- Ships Same Business Day
- Weight:
- 1.80 LBS
- CHAIN SIZE:
- 420
- MATERIAL:
- STEEL
- UNITS:
- EACH
- MODEL:
- HONDA
- RIDING STYLE:
- OFF-ROAD
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 51
MSRP: $22.23Now: $19.78Was: $22.23 -
On Sale
JT SPROCKETS Sprocket - Rear - Honda - 49-Tooth JTR215.49
JT SPROCKETS
MSRP: $20.58Now: $18.32Was: $20.58A quality rear sprocket is fundamental to maximizing drivetrain efficiency and acceleration response. The JT Sprockets 49-tooth rear sprocket delivers the precision engineering and material integrity...JTR21549- SKU:
- JTR21549
- Availability:
- Ships Same Business Day
- Weight:
- 1.60 LBS
- RIDING STYLE:
- OFF-ROAD
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 49
- UNITS:
- EACH
- MATERIAL:
- STEEL
- CHAIN SIZE:
- 420
- MODEL:
- HONDA
MSRP: $20.58Now: $18.32Was: $20.58 -
On Sale
JT SPROCKETS Rear Sprocket - Kawasaki - Black - 50 Tooth JTA460.50BLK
JT SPROCKETS
MSRP: $40.35Now: $35.91Was: $40.35A rear sprocket is critical to your bike's acceleration, top-end speed, and overall drivetrain efficiency—choosing the wrong tooth count directly impacts power delivery and engine longevity. The JT...12112654- SKU:
- 12112654
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- TYPE:
- DRIVE
- UNITS:
- EACH
- MATERIAL:
- 7075-T6 ALUMINUM
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- OFF-ROAD
- TOOTH COUNT:
- 50
- CHAIN SIZE:
- 520
- RIDING STYLE:
- STREET
- MOUNTING POSITION:
- REAR
MSRP: $40.35Now: $35.91Was: $40.35 -
On Sale
JT SPROCKETS Rear Race Sprocket - 45-Tooth JTR897.45SC
JT SPROCKETS
MSRP: $29.55Now: $26.30Was: $29.55A lightweight rear sprocket is one of the most effective upgrades for improving acceleration and reducing rotating mass in your drivetrain. The JT Sprockets 45-tooth rear sprocket delivers...12102473- SKU:
- 12102473
- Availability:
- Ships Same Business Day
- Weight:
- 0.62 LBS
- CHAIN SIZE:
- 520
- RIDING STYLE:
- STREET
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 45
- UNITS:
- EACH
- MATERIAL:
- C49 HIGH CARBON STEEL
MSRP: $29.55Now: $26.30Was: $29.55 -
On Sale
JT SPROCKETS Rear Race Sprocket - 40-Tooth JTR897.40SC
JT SPROCKETS
MSRP: $29.55Now: $26.30Was: $29.55If you're serious about reducing un-sprung weight and improving acceleration response, a lightweight rear sprocket is one of the highest-ROI upgrades you can make. The JT Sprockets 40-tooth rear...12102472- SKU:
- 12102472
- Availability:
- Ships Same Business Day
- Weight:
- 0.58 LBS
- TOOTH COUNT:
- 40
- CHAIN SIZE:
- 520
- RIDING STYLE:
- STREET
- MATERIAL:
- C49 HIGH CARBON STEEL
- UNITS:
- EACH
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
MSRP: $29.55Now: $26.30Was: $29.55 -
On Sale
JT SPROCKETS Rear Race Sprocket - 42-Tooth JTR897.42SC
JT SPROCKETS
MSRP: $29.55Now: $26.30Was: $29.55Reducing unsprung rotating weight is one of the most effective ways to improve acceleration and handling response, and the JT Sprockets 42-Tooth Rear Race Sprocket delivers exactly that. This...12102461- SKU:
- 12102461
- Availability:
- Ships Same Business Day
- Weight:
- 0.54 LBS
- CHAIN SIZE:
- 520
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- MATERIAL:
- C49 HIGH CARBON STEEL
- TOOTH COUNT:
- 42
- UNITS:
- EACH
- RIDING STYLE:
- STREET
MSRP: $29.55Now: $26.30Was: $29.55 -
On Sale
SUPERSPROX Steel Rear Sprocket - 50-Tooth RFE-1512-50-BLK
SUPERSPROX
MSRP: $59.95Now: $50.96Was: $59.95A sprocket is your drivetrain's critical link between engine power and wheel acceleration—choose poorly, and you're left with premature wear, inconsistent power delivery, and costly replacements. The...12101878- SKU:
- 12101878
- Availability:
- Ships Same Business Day
- Weight:
- 1.90 LBS
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- REAR
- MATERIAL:
- STEEL
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 50
- UNITS:
- EACH
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- STREET
MSRP: $59.95Now: $50.96Was: $59.95Qty in Cart: 0Quantity:Price:MSRP: $59.95Now: $50.96Was: $59.95Subtotal: -
On Sale
JT SPROCKETS Rear Sprocket - 47-Tooth - Honda JTR210.47SC
JT SPROCKETS
MSRP: $29.55Now: $26.30Was: $29.55A properly sized rear sprocket is critical for optimizing your Honda's power delivery and acceleration characteristics. The JT 47-tooth rear sprocket combines precision engineering with weight...12102434- SKU:
- 12102434
- Availability:
- Ships Same Business Day
- Weight:
- 1.30 LBS
- CHAIN SIZE:
- 520
- TOOTH COUNT:
- 47
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- UNITS:
- EACH
- MATERIAL:
- STEEL
MSRP: $29.55Now: $26.30Was: $29.55 -
On Sale
JT SPROCKETS Rear Sprocket - 52-Tooth - Honda JTR210.52SC
JT SPROCKETS
MSRP: $32.98Now: $29.35Was: $32.98A quality rear sprocket is fundamental to your drivetrain's efficiency and longevity. The JT Sprockets 52-Tooth rear sprocket delivers reliable power transmission with minimal rotating mass, directly...12102439- SKU:
- 12102439
- Availability:
- Ships Same Business Day
- Weight:
- 1.40 LBS
- MATERIAL:
- STEEL
- PRODUCT NAME:
- SPROCKET
- CHAIN SIZE:
- 520
- MOUNTING POSITION:
- REAR
- TOOTH COUNT:
- 52
- UNITS:
- EACH
MSRP: $32.98Now: $29.35Was: $32.98 -
On Sale
JT SPROCKETS Rear Sprocket - 53-Tooth - Honda JTR210.53SC
JT SPROCKETS
MSRP: $32.98Now: $29.35Was: $32.98A properly matched rear sprocket is critical to your bike's acceleration, top-end speed, and overall drivetrain efficiency. The JT Sprockets 53-tooth rear sprocket delivers the precision engineering...12102440- SKU:
- 12102440
- Availability:
- Ships Same Business Day
- Weight:
- 1.60 LBS
- MATERIAL:
- STEEL
- TOOTH COUNT:
- 53
- UNITS:
- EACH
- CHAIN SIZE:
- 520
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
MSRP: $32.98Now: $29.35Was: $32.98 -
On Sale
JT SPROCKETS Rear Sprocket - 48-Tooth - Yamaha JTR251.48SC
JT SPROCKETS
MSRP: $29.55Now: $26.30Was: $29.55The right rear sprocket is critical to your bike's acceleration, top-end speed, and chain longevity. JT's 48-tooth rear sprocket delivers the precision engineering and material quality that separates...12102441- SKU:
- 12102441
- Availability:
- Ships Same Business Day
- Weight:
- 1.35 LBS
- CHAIN SIZE:
- 520
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 48
- UNITS:
- EACH
- MATERIAL:
- STEEL
MSRP: $29.55Now: $26.30Was: $29.55 -
On Sale
JT SPROCKETS Sprocket - Rear - KTM - 50-Tooth JTR894.50
JT SPROCKETS
MSRP: $20.78Now: $18.49Was: $20.78A rear sprocket is critical to your KTM's acceleration, top-end performance, and overall drivetrain efficiency. The JT Sprockets 50-tooth rear sprocket delivers computer-optimized strength-to-weight...12100662- SKU:
- 12100662
- Availability:
- Ships Same Business Day
- Weight:
- 1.51 LBS
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 50
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- CHAIN SIZE:
- 420
- MATERIAL:
- STEEL
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
MSRP: $20.78Now: $18.49Was: $20.78 -
On Sale
JT SPROCKETS Sprocket - Rear - KTM - 49-Tooth JTR895.49
JT SPROCKETS
MSRP: $23.63Now: $21.03Was: $23.63A lightweight rear sprocket is one of the quickest ways to reduce unsprung rotating mass and sharpen your bike's acceleration and handling response. The JT Sprockets 49-tooth rear sprocket delivers...12100664- SKU:
- 12100664
- Availability:
- Ships Same Business Day
- Weight:
- 1.62 LBS
- CHAIN SIZE:
- 428
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 49
- MOUNTING POSITION:
- REAR
- UNITS:
- EACH
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
MSRP: $23.63Now: $21.03Was: $23.63 -
On Sale
JT SPROCKETS Sprocket - Rear - KTM - 45-Tooth JTR899.45
JT SPROCKETS
MSRP: $38.38Now: $34.16Was: $38.38A worn or mismatched rear sprocket directly impacts your engine's power delivery, acceleration, and overall driveability. The JT Sprockets 45-tooth rear sprocket for KTM delivers the precision...12100668- SKU:
- 12100668
- Availability:
- Ships Same Business Day
- Weight:
- 1.71 LBS
- MATERIAL:
- STEEL
- UNITS:
- EACH
- CHAIN SIZE:
- 525
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 45
MSRP: $38.38Now: $34.16Was: $38.38Qty in Cart: 0Quantity:Price:MSRP: $38.38Now: $34.16Was: $38.38Subtotal: -
On Sale
JT SPROCKETS Sprocket - Rear - Honda - 40-Tooth JTR284.40
JT SPROCKETS
MSRP: $37.33Now: $33.22Was: $37.33A worn or damaged rear sprocket directly impacts your power delivery, throttle response, and overall drivetrain efficiency. The JT Sprockets 40-tooth rear sprocket is engineered for maximum...JTR28440- SKU:
- JTR28440
- Availability:
- Ships Same Business Day
- Weight:
- 2.30 LBS
- CHAIN SIZE:
- 530
- RIDING STYLE:
- STREET
- TOOTH COUNT:
- 40
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- UNITS:
- EACH
- MATERIAL:
- STEEL
MSRP: $37.33Now: $33.22Was: $37.33Qty in Cart: 0Quantity:Price:MSRP: $37.33Now: $33.22Was: $37.33Subtotal: -
On Sale
JT SPROCKETS Sprocket - Rear - Kawasaki/Suzuki - 47-Tooth JTR1465.47
JT SPROCKETS
MSRP: $20.38Now: $18.14Was: $20.38A worn or incorrect rear sprocket directly impacts acceleration, top-end performance, and chain wear across your Kawasaki or Suzuki. This 47-tooth JT sprocket delivers the strength and precision...JTR146547- SKU:
- JTR146547
- Availability:
- Ships Same Business Day
- Weight:
- 1.70 LBS
- CHAIN SIZE:
- 420
- MOUNTING POSITION:
- REAR
- TOOTH COUNT:
- 47
- PRODUCT NAME:
- SPROCKET
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
MSRP: $20.38Now: $18.14Was: $20.38 -
On Sale
JT SPROCKETS Rear Sprocket - Honda - Black - 52 Tooth JTA210.52BLK
JT SPROCKETS
MSRP: $42.53Now: $37.85Was: $42.53A worn or undersized rear sprocket directly impacts acceleration, top-end speed, and overall drivetrain efficiency. The JT Sprockets 52-tooth rear sprocket delivers the strength-to-weight ratio...12112645- SKU:
- 12112645
- Availability:
- Ships Same Business Day
- Weight:
- 0.95 LBS
- MOUNTING POSITION:
- REAR
- TOOTH COUNT:
- 52
- CHAIN SIZE:
- 520
- MATERIAL:
- 7075-T6 ALUMINUM
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- OFF-ROAD
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- TYPE:
- DRIVE
- UNITS:
- EACH
MSRP: $42.53Now: $37.85Was: $42.53 -
On Sale
JT SPROCKETS Rear Sprocket - Honda - Black - 53 Tooth JTA210.53BLK
JT SPROCKETS
MSRP: $44.03Now: $39.19Was: $44.03A worn or inadequate rear sprocket directly impacts your Honda's acceleration, top speed, and overall drivetrain efficiency. The JT Sprockets 53-tooth rear sprocket replaces OEM components with a...12112646- SKU:
- 12112646
- Availability:
- Ships Same Business Day
- Weight:
- 0.95 LBS
- COLOR/FINISH:
- BLACK
- TOOTH COUNT:
- 53
- TYPE:
- REAR
- CHAIN SIZE:
- 520
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- MATERIAL:
- 7075-T6 ALUMINUM
- MOUNTING POSITION:
- REAR
MSRP: $44.03Now: $39.19Was: $44.03
