Dirt Bike Drivetrain
Dirt Bike Drivetrain Parts at JJ Motorsports
Enhance your dirt bike’s power transfer with premium drivetrain parts from JJ Motorsports. Find heavy-duty chains, front and rear sprockets, and clutch components designed to withstand intense riding demands. Combine these with other motocross gear and parts to maximize acceleration and ride efficiency on the track or trail.
Shop trusted brands like JT Chains for sealed chains and Renthal for ultralight sprockets. Explore related categories such as Dirt Bike Engine Parts for power upgrades or Dirt Bike Exhaust for complete tuning.
Browse our in-stock inventory below with same-day shipping and expert support. Questions? Contact us for fitment advice!
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
-
Renthal 13 Tooth Front Sprocket 520 Chain Grooved Design 360A-520-13GP
RENTHAL
$51.95A lightweight front sprocket is critical for reducing unsprung weight and improving throttle response, especially in off-road or track environments where every fraction matters. The Renthal 13-tooth front sprocket delivers the durability you need for...12121639- SKU:
- 12121639
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- COLOR/FINISH:
- NATURAL
- PRODUCT NAME:
- SPROCKET
- STYLE:
- SELF-CLEANING
- TOOTH COUNT:
- 13
- UNITS:
- EACH
- CHAIN SIZE:
- 520
- MATERIAL:
- CHROMOLY STEEL
- RIDING STYLE:
- STREET
- TYPE:
- COUNTERSHAFT
- MOUNTING POSITION:
- FRONT
$51.95 -
Renthal 12-Tooth Front Sprocket 520 Chain 655M13 Steel 360A-520-12P
RENTHAL
$47.95A 12-tooth front sprocket is the fastest gearing option for your 520 chain setup, delivering quicker acceleration and higher top-end speeds—ideal for racers pushing for competitive lap times or riders who want maximum throttle response. Renthal's 655M13...12121651- SKU:
- 12121651
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- COLOR/FINISH:
- NATURAL
- UNITS:
- EACH
- MOUNTING POSITION:
- FRONT
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 12
- CHAIN SIZE:
- 520
- MATERIAL:
- CHROMOLY STEEL
- RIDING STYLE:
- STREET
- TYPE:
- COUNTERSHAFT
$47.95 -
Renthal Front Grooved 13-Tooth 428 Chain Sprocket for Gas Gas Husqvarna KTM 503--428-13GP
RENTHAL
$37.95A worn or damaged front sprocket directly impacts your bike's acceleration, chain wear, and overall drivetrain efficiency. The Renthal Front Grooved 13-Tooth 428 Chain Sprocket delivers the durability and lightweight performance needed to maintain...12121458- SKU:
- 12121458
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- OFF-ROAD
- TOOTH COUNT:
- 13
- CHAIN SIZE:
- 428
- MATERIAL:
- 655M13 NICKEL CHROMIUM STEEL
- MOUNTING POSITION:
- FRONT
- TYPE:
- COUNTERSHAFT
- UNITS:
- EACH
- COLOR/FINISH:
- NATURAL
$37.95 -
Renthal Front Grooved 14T Sprocket for 428 Chain 503--428-14GP
RENTHAL
$37.95If you're running a 428 chain on your off-road bike, sprocket wear directly impacts acceleration response and chain longevity. Renthal's 14-tooth front sprocket cuts rotational mass while the self-cleaning mud grooves eliminate the power loss and...12121459- SKU:
- 12121459
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- MATERIAL:
- 655M13 NICKEL CHROMIUM STEEL
- TYPE:
- FRONT
- TOOTH COUNT:
- 14
- MOUNTING POSITION:
- FRONT
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- OFF-ROAD
- CHAIN SIZE:
- 428
- UNITS:
- EACH
$37.95 -
Renthal Front Sprocket 14T 420 Pitch for Yamaha YZ65 2018-2023 506-420-14GP
RENTHAL
$37.95A worn or inefficient front sprocket directly impacts your YZ65's acceleration, chain longevity, and overall drivetrain efficiency. The Renthal 14T front sprocket replaces a stock component that's prone to debris buildup and premature wear with a...12121460- SKU:
- 12121460
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- TOOTH COUNT:
- 14
- TYPE:
- FRONT
- CHAIN SIZE:
- 420
- PRODUCT NAME:
- SPROCKET
- UNITS:
- EACH
- MATERIAL:
- 655M13 NICKEL CHROMIUM STEEL
- MOUNTING POSITION:
- FRONT
- RIDING STYLE:
- OFF-ROAD
$37.95 -
Renthal Front Sprocket 14T 520 Chain Yamaha 49252014GP
RENTHAL
$37.95A worn or inefficient front sprocket robs your Yamaha of acceleration and forces your engine to work harder than necessary. The Renthal 14T Front Sprocket delivers the lightweight precision you need for responsive throttle response and reduced drivetrain...12120992- SKU:
- 12120992
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- MOUNTING POSITION:
- FRONT
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- COUNTERSHAFT
- CHAIN SIZE:
- 520
- MATERIAL:
- 655M13 NICKEL CHROMIUM STEEL
- TOOTH COUNT:
- 14
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- UNITS:
- EACH
$37.95 -
Renthal Front Sprocket 14-Tooth 520 Chain Suzuki RM-Z450 2013-2026 496U-520-14GP
RENTHAL
$47.95A worn or incorrect front sprocket directly impacts your RM-Z450's acceleration, throttle response, and overall drivetrain efficiency. The Renthal 14-Tooth Front Sprocket delivers measurable performance gains through precision engineering and weight...12121213- SKU:
- 12121213
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- MOUNTING POSITION:
- FRONT
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- CHAIN SIZE:
- 520
- MATERIAL:
- 655M13 NICKEL CHROMIUM STEEL
- TYPE:
- FRONT
- TOOTH COUNT:
- 14
$47.95 -
Renthal 12T Front Sprocket 520 Chain for KTM 2015-2017 Freeride 292--520-12P
RENTHAL
$37.95A worn or mismatched front sprocket directly impacts your KTM's throttle response, acceleration, and chain wear. The Renthal 12T Front Sprocket delivers precision-engineered durability and measurable weight savings that translate to quicker acceleration...12121301- SKU:
- 12121301
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- MOUNTING POSITION:
- FRONT
- CHAIN SIZE:
- 520
- MATERIAL:
- 655M13 NICKEL CHROMIUM STEEL
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- OFF-ROAD
- TOOTH COUNT:
- 12
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- TYPE:
- FRONT
- UNITS:
- EACH
$37.95Qty in Cart: 0Quantity:Price:$37.95Subtotal: -
Renthal Front Sprocket 12T 520 Chain Grooved 501-520-12GP
RENTHAL
$37.95A 12-tooth front sprocket is the foundation of responsive throttle control and rapid acceleration in off-road and racing applications. The Renthal 501-520-12GP delivers this through case-hardened 655-M13 steel construction and precision CNC machining,...12121437- SKU:
- 12121437
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- PRODUCT NAME:
- SPROCKET
- UNITS:
- EACH
- TOOTH COUNT:
- 12
- TYPE:
- FRONT
- CHAIN SIZE:
- 520
- MATERIAL:
- 655M13 NICKEL CHROMIUM STEEL
- MOUNTING POSITION:
- FRONT
- RIDING STYLE:
- OFF-ROAD
$37.95 -
Renthal Front Sprocket 14T 520 Chain Nickel-Chromium Steel 501-520-14GP
RENTHAL
$37.95A worn or stock front sprocket directly impacts your bike's acceleration, chain life, and overall drivetrain efficiency. The Renthal 14T 501-520-14GP combines case-hardened nickel-chromium steel with CNC-precision machining to deliver reliable power...12121439- SKU:
- 12121439
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- UNITS:
- EACH
- TOOTH COUNT:
- 14
- CHAIN SIZE:
- 520
- TYPE:
- FRONT
- MATERIAL:
- 655M13 NICKEL CHROMIUM STEEL
- MOUNTING POSITION:
- FRONT
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- OFF-ROAD
$37.95 -
Renthal 14-Tooth Ultralight Front Sprocket 520 Chain 501U-520-14GP
RENTHAL
$47.95If you're serious about reducing unsprung weight and improving throttle response, every gram counts—especially in the rotating components that directly impact acceleration. The Renthal 14-Tooth Ultralight Front Sprocket delivers a genuine 10-15% weight...12121441- SKU:
- 12121441
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- CHAIN SIZE:
- 520
- MATERIAL:
- 655M13 NICKEL CHROMIUM STEEL
- TYPE:
- FRONT
- MOUNTING POSITION:
- FRONT
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- TOOTH COUNT:
- 14
$47.95 -
Renthal Front Sprocket 13T 520 Pitch Husqvarna 293-520-13GP
RENTHAL
$37.95Shaving rotational mass from your drivetrain directly translates to sharper throttle response and quicker acceleration—critical advantages whether you're on the track or pushing your limits on technical terrain. The Renthal 13T front sprocket delivers...12120838- SKU:
- 12120838
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- MOUNTING POSITION:
- FRONT
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- CHAIN SIZE:
- 520
- MATERIAL:
- 655M13 NICKEL CHROMIUM STEEL
- RIDING STYLE:
- STREET
- TOOTH COUNT:
- 13
- TYPE:
- FRONT
- UNITS:
- EACH
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- OFF-ROAD
$37.95 -
Renthal Front Sprocket 14T 293--520-14GP
RENTHAL
$37.95If you're running a Husqvarna off-road machine, sprocket wear directly impacts your acceleration, chain longevity, and overall drivetrain efficiency. The Renthal 14T front sprocket replaces stock components with a precision-engineered alternative that...12120839- SKU:
- 12120839
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- TOOTH COUNT:
- 14
- UNITS:
- EACH
- MATERIAL:
- 655M13 NICKEL CHROMIUM STEEL
- MOUNTING POSITION:
- FRONT
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- OFF-ROAD
- CHAIN SIZE:
- 520
- RIDING STYLE:
- STREET
- TYPE:
- FRONT
$37.95 -
Renthal Front Sprocket 15T 520 Chain Husqvarna 293--520-15GP
RENTHAL
$37.95If you're running a Husqvarna dirt bike, sprocket wear directly impacts acceleration, chain longevity, and overall drivetrain efficiency. The Renthal 15T Front Sprocket delivers case-hardened 655M13 nickel-chromium steel construction with self-cleaning...12120840- SKU:
- 12120840
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- TOOTH COUNT:
- 15
- TYPE:
- FRONT
- PRODUCT NAME:
- SPROCKET
- UNITS:
- EACH
- MATERIAL:
- 655M13 NICKEL CHROMIUM STEEL
- MOUNTING POSITION:
- FRONT
- RIDING STYLE:
- OFF-ROAD
- CHAIN SIZE:
- 520
- RIDING STYLE:
- STREET
$37.95 -
Renthal Front Sprocket 14-Tooth 520 Chain Husqvarna 293-520-14GP
RENTHAL
$47.95A worn or inefficient front sprocket directly impacts throttle response and chain wear across your entire drivetrain. The Renthal 14-Tooth Front Sprocket delivers measurable weight savings and precision engineering that translates to sharper acceleration...12120823- SKU:
- 12120823
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- TOOTH COUNT:
- 14
- CHAIN SIZE:
- 520
- RIDING STYLE:
- STREET
- TYPE:
- FRONT
- UNITS:
- EACH
- MATERIAL:
- 655M13 NICKEL CHROMIUM STEEL
- MOUNTING POSITION:
- FRONT
- PRODUCT NAME:
- SPROCKET
$47.95 -
Renthal 10-Tooth Front Sprocket for KTM 50 SX 2009-2023 481--415-10P
RENTHAL
$46.95If you're running a KTM 50 SX, sprocket selection directly impacts acceleration, weight distribution, and how your bike responds to throttle input. The Renthal 10-Tooth Front Sprocket strips unnecessary weight from your drivetrain while the case-hardened...12120825- SKU:
- 12120825
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- MOUNTING POSITION:
- FRONT
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- OFF-ROAD
- MATERIAL:
- 655M13 NICKEL CHROMIUM STEEL
- RIDING STYLE:
- STREET
- TOOTH COUNT:
- 10
- CHAIN SIZE:
- 415
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- TYPE:
- FRONT
- UNITS:
- EACH
$46.95 -
Renthal Front Sprocket 11T 415 Chain KTM 50 SX 2009-2023 481--415-11P
RENTHAL
$47.95An 11-tooth front sprocket is essential for maximizing acceleration and throttle response on your KTM 50 SX, particularly if you're running 415-chain setups. The Renthal 481--415-11P delivers the lightweight construction and durability needed for...12120826- SKU:
- 12120826
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- MOUNTING POSITION:
- FRONT
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- OFF-ROAD
- MATERIAL:
- 655M13 NICKEL CHROMIUM STEEL
- RIDING STYLE:
- STREET
- TOOTH COUNT:
- 11
- TYPE:
- FRONT
- CHAIN SIZE:
- 415
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- UNITS:
- EACH
$47.95 -
Renthal Front Sprocket 14T 520-14P for Honda CRF250L 2013-2020
RENTHAL
$37.95The Renthal 14T front sprocket is engineered to deliver measurable improvements in acceleration and handling by reducing unsprung weight without compromising durability. If you're running a Honda CRF250L and want sharper throttle response with less...12120876- SKU:
- 12120876
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
- MOUNTING POSITION:
- FRONT
- RIDING STYLE:
- OFF-ROAD
- CHAIN SIZE:
- 520
- MATERIAL:
- 655M13 NICKEL CHROMIUM STEEL
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 14
- TYPE:
- FRONT
- UNITS:
- EACH
$37.95 -
Renthal Front Sprocket 13T 520 Steel KTM 292U52013GP
RENTHAL
$47.95A worn or incorrect front sprocket directly impacts your KTM's acceleration, chain wear, and overall drivetrain efficiency. The Renthal 13T Front Sprocket delivers measurable weight savings and durability gains through precision engineering and...12120884- SKU:
- 12120884
- Availability:
- Ships Same Business Day
- Weight:
- 0.26 LBS
- CHAIN SIZE:
- 520
- MATERIAL:
- 655M13 NICKEL CHROMIUM STEEL
- RIDING STYLE:
- STREET
- MOUNTING POSITION:
- FRONT
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- TOOTH COUNT:
- 13
- TYPE:
- FRONT
- UNITS:
- EACH
$47.95 -
Renthal Front Sprocket 14T 520 Chain KTM 292U52014GP
RENTHAL
$47.95If you're running a KTM with a 520 chain, your front sprocket is critical to acceleration response and overall drivetrain efficiency. The Renthal 14T reduces rotational mass by 10-15% without compromising durability, translating to faster throttle...12120885- SKU:
- 12120885
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
- UNITS:
- EACH
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- TOOTH COUNT:
- 14
- CHAIN SIZE:
- 520
- RIDING STYLE:
- STREET
- TYPE:
- FRONT
- MATERIAL:
- 655M13 NICKEL CHROMIUM STEEL
- MOUNTING POSITION:
- FRONT
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- OFF-ROAD
$47.95
