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!
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- Qty in Cart
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- Price
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MOOSE RACING Front Sprocket - 12 Tooth - KX450F/X D26-2153-12CRMO
MOOSE RACING
$18.95A worn or undersized front sprocket directly impacts acceleration response and overall drivetrain efficiency on your KX450F/X. The MOOSE RACING 12-tooth front sprocket delivers precise engagement with your countershaft while resisting the impact loads...12122253- SKU:
- 12122253
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
$18.95 -
MOOSE RACING Front Sprocket - 13 Tooth - KX450F/X D26-2153-13CRMO
MOOSE RACING
$18.95A worn or incorrectly sized front sprocket kills acceleration and strains your entire drivetrain. The MOOSE RACING 13-tooth front sprocket restores precise power delivery to the rear wheel while distributing load evenly across the countershaft, reducing...12122254- SKU:
- 12122254
- Availability:
- Ships Same Business Day
- Weight:
- 0.26 LBS
$18.95Qty in Cart: 0Quantity:Price:$18.95Subtotal: -
MOOSE RACING Front Sprocket - 14 Tooth - KX450F/X D26-2153-14CRMO
MOOSE RACING
$19.95A worn or incorrect front sprocket directly impacts power delivery, acceleration response, and overall driveline efficiency on your KX450F/X. This MOOSE RACING 14-tooth sprocket delivers OEM-matched precision with superior material science—chromoly steel...12122255- SKU:
- 12122255
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
$19.95 -
MOOSE RACING Front Sprocket - 15 Tooth - KX450F/X D26-2153-15CRMO
MOOSE RACING
$19.95A front sprocket carries enormous centrifugal forces and impact loads every time you accelerate. Stock sprockets wear quickly under aggressive riding, causing chain slip, delayed power delivery, and potential drivetrain failure. The MOOSE RACING 15-tooth...12122256- SKU:
- 12122256
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
$19.95 -
MOOSE RACING Front Sprocket - 13 Tooth - RM-Z 450 D26-3167-13CRMO
MOOSE RACING
$22.95A worn or incorrect front sprocket directly impacts your RM-Z 450's acceleration, top-end speed, and driveline durability. The MOOSE RACING 13-tooth front sprocket is engineered with chromoly steel and precision-broached splines to handle aggressive...12122257- SKU:
- 12122257
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
$22.95 -
MOOSE RACING Front Sprocket - 14 Tooth - RMZ-450 D26-3167-14CRMO
MOOSE RACING
$22.95The front sprocket is the foundation of your driveline's efficiency—get the wrong size or material, and you'll sacrifice acceleration, fuel economy, and component lifespan. The MOOSE RACING 14-tooth front sprocket delivers consistent power transfer...12122258- SKU:
- 12122258
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
$22.95 -
MOOSE RACING Front Sprocket - 13 Tooth - RMZ-250 D26-3182-13CRMO
MOOSE RACING
$28.95A worn or incorrect front sprocket directly impacts acceleration, top-end speed, and driveline efficiency on your RMZ-250. The MOOSE RACING 13-tooth front sprocket restores precise engagement with your countershaft while withstanding the shock loads of...12122259- SKU:
- 12122259
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
$28.95 -
MOOSE RACING Front Sprocket - 14 Tooth - RMZ-250 D26-3182-14CRMO
MOOSE RACING
$29.95A worn or incorrect front sprocket directly impacts acceleration, top-end power delivery, and drivetrain longevity. The MOOSE RACING 14-tooth front sprocket is engineered to maintain precise engagement with your countershaft while resisting the impact...12122260- SKU:
- 12122260
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
$29.95 -
MOOSE RACING Front Sprocket - 13 Tooth - Yamaha D26-4165-13CRMO
MOOSE RACING
$20.95A worn or undersized front sprocket robs your bike of acceleration and top-end performance, forcing your engine to work harder while delivering less power to the wheel. MOOSE Racing's 13-tooth front sprocket is precision-engineered to transmit driveline...12122261- SKU:
- 12122261
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
$20.95 -
MOOSE RACING Front Sprocket - 14 Tooth - Yamaha D26-4165-14CRMO
MOOSE RACING
$20.95A worn or damaged front sprocket directly impacts your driveline efficiency and power delivery to the wheel. The MOOSE RACING 14-tooth front sprocket restores precise engagement with your countershaft while delivering the durability needed for...12122262- SKU:
- 12122262
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
$20.95 -
MOOSE RACING Front Sprocket - 15 Tooth - Yamaha D26-4165-15CRMO
MOOSE RACING
$20.95A worn or incorrect front sprocket directly impacts your bike's acceleration, top speed, and overall driveline efficiency. The MOOSE RACING 15-tooth front sprocket is engineered with precision-broached inner splines and heat-treated chromoly steel to...12122263- SKU:
- 12122263
- Availability:
- Ships Same Business Day
- Weight:
- 0.41 LBS
$20.95 -
MOOSE RACING Front Sprocket - 13 Tooth - TT-R 125/L D26-4167-13CRMO
MOOSE RACING
$15.95A worn or undersized front sprocket robs your TT-R 125/L of acceleration and throttle response. The MOOSE RACING 13-tooth front sprocket restores precise power delivery to the rear wheel by maintaining exact OEM specifications and eliminating play in the...12122264- SKU:
- 12122264
- Availability:
- Ships Same Business Day
- Weight:
- 0.23 LBS
$15.95 -
MOOSE RACING Front Sprocket - 14 Tooth - TT-R 125/XT 125R D26-4167-14CRMO
MOOSE RACING
$15.95A worn or damaged front sprocket compromises power transfer to your wheel and accelerates wear across your entire drivetrain. The MOOSE RACING 14-Tooth Front Sprocket restores precise engagement with your countershaft, delivering reliable acceleration...12122265- SKU:
- 12122265
- Availability:
- Ships Same Business Day
- Weight:
- 0.28 LBS
$15.95 -
MOOSE RACING Front Sprocket - 12 Tooth - Yamaha D26-4168-12CRMO
MOOSE RACING
$18.95A worn or damaged front sprocket directly impacts acceleration response and power delivery to your wheels. The MOOSE RACING 12-tooth front sprocket is engineered with chromoly steel and precision broaching to handle demanding riding conditions while...12122266- SKU:
- 12122266
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
$18.95 -
MOOSE RACING Front Sprocket - 14 Tooth - Yamaha D26-4168-14CRMO
MOOSE RACING
$19.95A worn or damaged front sprocket directly impacts throttle response, acceleration consistency, and drivetrain reliability—especially critical in competitive riding and demanding trail conditions. The MOOSE RACING 14-tooth front sprocket delivers...12122268- SKU:
- 12122268
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
$19.95Qty in Cart: 0Quantity:Price:$19.95Subtotal: -
MOOSE RACING Front Sprocket - 14 Tooth - Yamaha D26-4169-14CRMO
MOOSE RACING
$25.95A 14-tooth front sprocket is the foundation of responsive throttle control and efficient power delivery in off-road riding. Whether you're pushing hard on the track or tackling demanding terrain, this MOOSE Racing sprocket delivers the durability and...12122269- SKU:
- 12122269
- Availability:
- Ships Same Business Day
- Weight:
- 0.42 LBS
$25.95 -
MOOSE RACING Front Sprocket - 15 Tooth - XT 600 E D26-4176-15CRMO
MOOSE RACING
$23.95A worn or damaged front sprocket compromises your entire drivetrain's efficiency and can cause costly damage to your countershaft. The MOOSE RACING 15-tooth front sprocket for the XT 600 E delivers OEM-spec precision with superior material durability,...12122270- SKU:
- 12122270
- Availability:
- Ships Same Business Day
- Weight:
- 0.45 LBS
$23.95 -
MOOSE RACING Front Sprocket - 14 Tooth - YZ 65 D26-4181-14CRMO
MOOSE RACING
$17.95A worn or incorrect front sprocket directly impacts acceleration response, top-end speed, and overall drivetrain efficiency on your YZ 65. MOOSE Racing's 14-tooth front sprocket is precision-engineered to exact OEM specifications, ensuring reliable power...12122271- SKU:
- 12122271
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
$17.95 -
MOOSE RACING Front Sprocket - 13 Tooth - Husqvarna/KTM D26-5159-13CRMO
MOOSE RACING
$17.95A worn or undersized front sprocket directly impacts acceleration, top-end speed, and overall driveline efficiency on dirt bikes and ATVs. MOOSE Racing's 13-tooth front sprocket is precision-engineered to handle the shock loads and continuous wear that...12122272- SKU:
- 12122272
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
$17.95 -
MOOSE RACING Front Sprocket - 14 Tooth - Husqvarna/KTM D26-5159-14CRMO
MOOSE RACING
$18.95A front sprocket is the foundation of your drivetrain's performance characteristics, directly controlling engine RPM at any given speed and affecting acceleration response, top speed, and overall power delivery. The MOOSE RACING 14-tooth front sprocket...12122273- SKU:
- 12122273
- Availability:
- Ships Same Business Day
- Weight:
- 0.28 LBS
$18.95
