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Dirt Bike Front Sprockets

Dirt Bike Front Sprockets

Dirt Bike Front Sprockets

Dirt Bike Front Sprockets for Honda, Kawasaki & Yamaha: 11-14 Tooth Countershaft Sprockets at JJ Motorsports

Optimize your dirt bike's gearing and acceleration with premium front sprockets from JJ Motorsports, precision-machined for perfect chain fit, maximum strength, and long-lasting performance in motocross, enduro, and trail riding. Our selection includes lightweight steel and hardened countershaft sprockets in 11-14 tooth counts designed for reduced rotational mass, smoother power delivery, and customizable gear ratios. Compatible with top models like Honda XR250R, CRF, Kawasaki KX/KLX, and more, these high-quality sprockets from trusted brands ensure minimal wear on chains, improved throttle response, and reliability in dusty, high-load conditions. From JT Sprockets' computer-designed steel for OEM-spec durability to Moose Racing's CRMoly hardened options for extreme off-road use, fine-tune your final drive for tighter woods, faster tracks, or balanced trail riding with the right tooth count.

Shop brands like JT Sprockets and Moose Racing for race-proven quality. Explore related categories such as dirt bike rear sprockets for full kits or dirt bike drive chains for complete drivetrain upgrades.

Top Dirt Bike Front Sprockets

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
  • RENTHAL Renthal Front Sprocket 12T 420 Chain Kawasaki KX100 KX65 KX85 KX80 KX60 258--420-12GP

    Renthal Front Sprocket 12T 420 Chain Kawasaki KX100 KX65 KX85 KX80 KX60 258--420-12GP

    RENTHAL

    $37.95
    A worn or mismatched front sprocket directly impacts throttle response, acceleration, and chain wear on your Kawasaki dirt bike. The Renthal 12T Front Sprocket delivers the durability and precision needed for consistent performance whether you're racing...
    R25842012
    SKU:
    R25842012
    Availability:
    Ships Same Business Day
    Weight:
    0.19 LBS
    MOUNTING POSITION:
    FRONT
    PRODUCT NAME:
    SPROCKET
    UNITS:
    EACH
    MATERIAL:
    STEEL
    RIDING STYLE:
    OFF-ROAD
    TOOTH COUNT:
    12
    CHAIN SIZE:
    420
    $37.95
    Qty in Cart: 0
    Quantity:
    Price:
    $37.95
    Subtotal:
  • RENTHAL Renthal 14-Tooth Front Sprocket 428 Chain for Suzuki RM80 RM85 Yamaha YZ80 258--428-14GP

    Renthal 14-Tooth Front Sprocket 428 Chain for Suzuki RM80 RM85 Yamaha YZ80 258--428-14GP

    RENTHAL

    $37.95
    Shaving unsprung weight from your bike's drivetrain directly improves acceleration and handling—and this Renthal 14-tooth sprocket delivers a measurable 10-15% weight reduction without compromising durability. The self-cleaning mud grooves machined into...
    R25842814
    SKU:
    R25842814
    Availability:
    Ships Same Business Day
    Weight:
    0.25 LBS
    MATERIAL:
    STEEL
    MOUNTING POSITION:
    FRONT
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    COUNTERSHAFT
    UNITS:
    EACH
    CHAIN SIZE:
    428
    COLOR/FINISH:
    NATURAL
    PRODUCT NAME:
    SPROCKET
    TOOTH COUNT:
    14
    $37.95
    Qty in Cart: 0
    Quantity:
    Price:
    $37.95
    Subtotal:
  • RENTHAL Renthal 12-Tooth Front Sprocket for Suzuki 255--520-12GP

    Renthal 12-Tooth Front Sprocket for Suzuki 255--520-12GP

    RENTHAL

    $37.95
    A quality front sprocket is fundamental to your Suzuki's drivetrain efficiency and acceleration response. The Renthal 12-tooth design delivers measurable weight savings and durability gains through case-hardened 655M13 steel construction, while the...
    R25552012
    SKU:
    R25552012
    Availability:
    Ships Same Business Day
    Weight:
    0.30 LBS
    RIDING STYLE:
    OFF-ROAD
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    RIDING STYLE:
    ATV
    UNITS:
    EACH
    MATERIAL:
    STEEL
    MOUNTING POSITION:
    FRONT
    PRODUCT NAME:
    SPROCKET
    TOOTH COUNT:
    12
    CHAIN SIZE:
    520
    $37.95
    Qty in Cart: 0
    Quantity:
    Price:
    $37.95
    Subtotal:
  • RENTHAL Renthal Front Sprocket 15T 520 Chain KTM 292--520-15GP

    Renthal Front Sprocket 15T 520 Chain KTM 292--520-15GP

    RENTHAL

    $37.95
    If you're running a KTM with a 520 chain and pushing hard on the track or trail, your front sprocket takes a beating. The Renthal 15T Front Sprocket cuts weight without sacrificing durability, which means quicker acceleration and more responsive handling...
    12120046
    SKU:
    12120046
    Availability:
    Ships Same Business Day
    Weight:
    0.40 LBS
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    RIDING STYLE:
    OFF-ROAD
    CHAIN SIZE:
    520
    MATERIAL:
    655M13 NICKEL CHROMIUM STEEL
    RIDING STYLE:
    STREET
    TYPE:
    FRONT
    MOUNTING POSITION:
    FRONT
    PRODUCT NAME:
    SPROCKET
    UNITS:
    EACH
    TOOTH COUNT:
    15
    $37.95
    Qty in Cart: 0
    Quantity:
    Price:
    $37.95
    Subtotal:
  • RENTHAL Renthal Front Sprocket 13T 520 Chain Kawasaki 445--520-13GP

    Renthal Front Sprocket 13T 520 Chain Kawasaki 445--520-13GP

    RENTHAL

    $37.95
    A lighter front sprocket directly improves throttle response and acceleration by reducing rotational mass, while the hardened 655M13 steel construction ensures your drivetrain won't wear prematurely under racing or aggressive riding conditions. The...
    12120709
    SKU:
    12120709
    Availability:
    Ships Same Business Day
    Weight:
    0.25 LBS
    PRODUCT NAME:
    SPROCKET
    RIDING STYLE:
    OFF-ROAD
    TOOTH COUNT:
    13
    UNITS:
    EACH
    MATERIAL:
    655M13 NICKEL CHROMIUM STEEL
    MOUNTING POSITION:
    FRONT
    TYPE:
    FRONT
    CHAIN SIZE:
    520
    RIDING STYLE:
    STREET
    Qty in Cart: 0
    Quantity:
    Price:
    $37.95
    Subtotal:
  • RENTHAL Renthal 13-Tooth Front Sprocket for Husqvarna TC250 2010 479--520-13GP

    Renthal 13-Tooth Front Sprocket for Husqvarna TC250 2010 479--520-13GP

    RENTHAL

    $37.95
    If you're running a Husqvarna TC250 and serious about lap times, sprocket choice directly impacts your power delivery and handling. This Renthal 13-tooth front sprocket delivers measurable weight savings and durability gains—a bolt-on upgrade that...
    12120728
    SKU:
    12120728
    Availability:
    Ships Same Business Day
    Weight:
    0.30 LBS
    CHAIN SIZE:
    520
    TYPE:
    FRONT
    TOOTH COUNT:
    13
    UNITS:
    EACH
    MATERIAL:
    655M13 NICKEL CHROMIUM STEEL
    MOUNTING POSITION:
    FRONT
    PRODUCT NAME:
    SPROCKET
    RIDING STYLE:
    OFF-ROAD
    Qty in Cart: 0
    Quantity:
    Price:
    $37.95
    Subtotal:
  • Total: items /

Adding your products to cart

Big Power, Nice Sound!

Picked up a Pro Circuit pipe and silencer for my YZ125 it’s a game changer. The power feels way better and the sound is awesome.

Tyler D. - 06/12

Perfect Fit

First time ordering here and dang y’all knocked it outta the park! The wheels fit my Ranger UTV perfect, and I’ll definitely be back for more 5 stars all day!

Sarah L. - 08/24

Fast Shipping!!

Ordered on a Monday, and it was on my doorstep by Wednesday! Super impressed with how fast the shipping was.

Jason P. - 09/13

Helps keep cool, works great!

Bought the dual pass Allstar radiator for my build, and it’s been solid. Keeps the engine running cool even on the hottest days no complaints here!

Jake M. - 05/21

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