Select Your Ride

1
2
3

Street Bike Countershaft Sprockets - Steel

Street Bike Countershaft Sprockets - Steel

Street Bike Countershaft Sprockets at JJ Motorsports

Optimize your street bike's gearing with premium steel countershaft sprockets from JJ Motorsports, featuring case-hardened construction for durability and precise chain fit on Honda CBR, Yamaha R-series, Kawasaki ZX, Suzuki GSX-R, and more. These lightweight sprockets deliver smoother acceleration and extended chain life.

Shop Vortex, Parts Unlimited, and Driven Racing countershaft sprockets for race-proven quality. Explore related categories such as street bike rear sprockets or street bike drive chains to complete your gearing upgrades.

Top Street Bike Countershaft 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
  • SUPERSPROX Countershaft Sprocket - 15-Tooth CST-705-15-2

    SUPERSPROX Countershaft Sprocket - 15-Tooth CST-705-15-2

    SUPERSPROX

    $34.95
    Made from SCM-435 carbon-free steel and impregnated to guarantee zero breaking risk and extended sprocket life, Ultra-hard surface layer (.5mm) reduces friction to prevent power loss caused by chain drag, Fully lightened with radial holes for off-road...
    12121401
    SKU:
    12121401
    Availability:
    Ships Same Business Day
    Weight:
    0.50 LBS
    PRODUCT NAME:
    SPROCKET
    TYPE:
    COUNTERSHAFT
    UNITS:
    EACH
    MATERIAL:
    STEEL
    MOUNTING POSITION:
    FRONT
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    CHAIN SIZE:
    520
    RIDING STYLE:
    STREET
    TOOTH COUNT:
    15
    Qty in Cart: 0
    Quantity:
    Price:
    $34.95
    Subtotal:
  • SUPERSPROX Countershaft Sprocket - 16-Tooth CST-402-16-2

    SUPERSPROX Countershaft Sprocket - 16-Tooth CST-402-16-2

    SUPERSPROX

    $29.95
    A countershaft sprocket is the foundation of reliable power delivery from your engine to the chain. This 16-tooth SUPERSPROX is engineered to eliminate the premature wear and power loss that plague stock sprockets, giving you the durability and...
    12121727
    SKU:
    12121727
    Availability:
    Ships Same Business Day
    Weight:
    0.45 LBS
    MATERIAL:
    STEEL
    MOUNTING POSITION:
    FRONT
    TOOTH COUNT:
    16
    TYPE:
    COUNTERSHAFT
    UNITS:
    EACH
    CHAIN SIZE:
    520
    PRODUCT NAME:
    SPROCKET
    RIDING STYLE:
    STREET
    $29.95
    Qty in Cart: 0
    Quantity:
    Price:
    $29.95
    Subtotal:
  • SUPERSPROX Countershaft Sprocket - 17-Tooth CST-404-17-2

    SUPERSPROX Countershaft Sprocket - 17-Tooth CST-404-17-2

    SUPERSPROX

    $34.95
    If you're running a 17-tooth countershaft sprocket, tooth wear and chain drag directly impact your power delivery and reliability. The SUPERSPROX CST-404-17-2 eliminates these weak points with factory-grade materials and precision engineering, giving you...
    12121728
    SKU:
    12121728
    Availability:
    Ships Same Business Day
    Weight:
    0.45 LBS
    MATERIAL:
    STEEL
    MOUNTING POSITION:
    FRONT
    CHAIN SIZE:
    525
    PRODUCT NAME:
    SPROCKET
    UNITS:
    EACH
    RIDING STYLE:
    STREET
    TOOTH COUNT:
    17
    TYPE:
    COUNTERSHAFT
    $34.95
    Qty in Cart: 0
    Quantity:
    Price:
    $34.95
    Subtotal:
  • SUPERSPROX Countershaft Sprocket - 17-Tooth CST-704-17-2

    SUPERSPROX Countershaft Sprocket - 17-Tooth CST-704-17-2

    SUPERSPROX

    $34.95
    Made from SCM-435 carbon-free steel and impregnated to guarantee zero breaking risk and extended sprocket life, Ultra-hard surface layer (.5mm) reduces friction to prevent power loss caused by chain drag, Fully lightened with radial holes for off-road...
    12121732
    SKU:
    12121732
    Availability:
    Ships Same Business Day
    Weight:
    0.65 LBS
    PRODUCT NAME:
    SPROCKET
    RIDING STYLE:
    STREET
    TOOTH COUNT:
    17
    TYPE:
    COUNTERSHAFT
    CHAIN SIZE:
    525
    UNITS:
    EACH
    MATERIAL:
    STEEL
    MOUNTING POSITION:
    FRONT
    Qty in Cart: 0
    Quantity:
    Price:
    $34.95
    Subtotal:
  • SUPERSPROX Countershaft Sprocket - 13-Tooth CST-715-13-1

    SUPERSPROX Countershaft Sprocket - 13-Tooth CST-715-13-1

    SUPERSPROX

    $24.95
    Made from SCM-435 carbon-free steel and impregnated to guarantee zero breaking risk and extended sprocket life, Ultra-hard surface layer (.5mm) reduces friction to prevent power loss caused by chain drag, Fully lightened with radial holes for off-road...
    12121733
    SKU:
    12121733
    Availability:
    Ships Same Business Day
    Weight:
    0.55 LBS
    CHAIN SIZE:
    520
    MATERIAL:
    STEEL
    TOOTH COUNT:
    13
    MOUNTING POSITION:
    FRONT
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    COUNTERSHAFT
    UNITS:
    EACH
    PRODUCT NAME:
    SPROCKET
    $24.95
    Qty in Cart: 0
    Quantity:
    Price:
    $24.95
    Subtotal:
  • SUPERSPROX Countershaft Sprocket - 15-Tooth CST-1269-15-2

    SUPERSPROX Countershaft Sprocket - 15-Tooth CST-1269-15-2

    SUPERSPROX

    $34.95
    Made from SCM-435 carbon-free steel and impregnated to guarantee zero breaking risk and extended sprocket life, Ultra-hard surface layer (.5mm) reduces friction to prevent power loss caused by chain drag, Fully lightened with radial holes for off-road...
    12121735
    SKU:
    12121735
    Availability:
    Ships Same Business Day
    Weight:
    0.52 LBS
    TOOTH COUNT:
    15
    MATERIAL:
    STEEL
    MOUNTING POSITION:
    FRONT
    CHAIN SIZE:
    525
    PRODUCT NAME:
    SPROCKET
    UNITS:
    EACH
    RIDING STYLE:
    STREET
    TYPE:
    COUNTERSHAFT
    $34.95
    Qty in Cart: 0
    Quantity:
    Price:
    $34.95
    Subtotal:
  • SUPERSPROX Countershaft Sprocket - 16-Tooth CST-1269-16-2

    SUPERSPROX Countershaft Sprocket - 16-Tooth CST-1269-16-2

    SUPERSPROX

    $34.95
    Made from SCM-435 carbon-free steel and impregnated to guarantee zero breaking risk and extended sprocket life, Ultra-hard surface layer (.5mm) reduces friction to prevent power loss caused by chain drag, Fully lightened with radial holes for off-road...
    12121736
    SKU:
    12121736
    Availability:
    Ships Same Business Day
    Weight:
    0.50 LBS
    MATERIAL:
    STEEL
    MOUNTING POSITION:
    FRONT
    TOOTH COUNT:
    16
    TYPE:
    COUNTERSHAFT
    UNITS:
    EACH
    PRODUCT NAME:
    SPROCKET
    RIDING STYLE:
    STREET
    CHAIN SIZE:
    525
    Qty in Cart: 0
    Quantity:
    Price:
    $34.95
    Subtotal:
  • SUPERSPROX Countershaft Sprocket - 15-Tooth CST-1307-15-2

    SUPERSPROX Countershaft Sprocket - 15-Tooth CST-1307-15-2

    SUPERSPROX

    $34.95
    Made from SCM-435 carbon-free steel and impregnated to guarantee zero breaking risk and extended sprocket life, Ultra-hard surface layer (.5mm) reduces friction to prevent power loss caused by chain drag, Fully lightened with radial holes for off-road...
    12121737
    SKU:
    12121737
    Availability:
    Ships Same Business Day
    Weight:
    0.55 LBS
    MATERIAL:
    STEEL
    TOOTH COUNT:
    15
    MOUNTING POSITION:
    FRONT
    RIDING STYLE:
    OFF-ROAD
    PRODUCT NAME:
    SPROCKET
    CHAIN SIZE:
    520
    RIDING STYLE:
    STREET
    TYPE:
    COUNTERSHAFT
    UNITS:
    EACH
    Qty in Cart: 0
    Quantity:
    Price:
    $34.95
    Subtotal:
  • SUPERSPROX Countershaft Sprocket - 13-Tooth CST-1326-13-1

    SUPERSPROX Countershaft Sprocket - 13-Tooth CST-1326-13-1

    SUPERSPROX

    $29.95
    If you're running a countershaft sprocket that's eating power through friction and chain drag, you're leaving performance on the table. The SUPERSPROX 13-tooth countershaft sprocket is engineered with the same durability standards that factory racing...
    12121738
    SKU:
    12121738
    Availability:
    Ships Same Business Day
    Weight:
    0.30 LBS
    MOUNTING POSITION:
    FRONT
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    COUNTERSHAFT
    MATERIAL:
    STEEL
    CHAIN SIZE:
    520
    TOOTH COUNT:
    13
    UNITS:
    EACH
    PRODUCT NAME:
    SPROCKET
    $29.95
    Qty in Cart: 0
    Quantity:
    Price:
    $29.95
    Subtotal:
  • SUPERSPROX Countershaft Sprocket - 17-Tooth CST-1537-17-2

    SUPERSPROX Countershaft Sprocket - 17-Tooth CST-1537-17-2

    SUPERSPROX

    $29.95
    If you're running a countershaft sprocket that can't handle sustained power delivery or high RPM stress, you're sacrificing reliability and performance every time you ride. The SUPERSPROX 17-Tooth Countershaft Sprocket delivers the durability and...
    12121740
    SKU:
    12121740
    Availability:
    Ships Same Business Day
    Weight:
    0.55 LBS
    MATERIAL:
    STEEL
    MOUNTING POSITION:
    FRONT
    TOOTH COUNT:
    17
    TYPE:
    COUNTERSHAFT
    RIDING STYLE:
    STREET
    CHAIN SIZE:
    525
    PRODUCT NAME:
    SPROCKET
    UNITS:
    EACH
    Qty in Cart: 0
    Quantity:
    Price:
    $29.95
    Subtotal:
  • SUPERSPROX Countershaft Sprocket - 14-Tooth CST-1900-14-1 SUPERSPROX Countershaft Sprocket - 14-Tooth CST-1900-14-1

    SUPERSPROX Countershaft Sprocket - 14-Tooth CST-1900-14-1

    SUPERSPROX

    $19.95
    Made from SCM-435 carbon-free steel and impregnated to guarantee zero breaking risk and extended sprocket life, Ultra-hard surface layer (.5mm) reduces friction to prevent power loss caused by chain drag, Fully lightened with radial holes for off-road...
    12121741
    SKU:
    12121741
    Availability:
    Ships Same Business Day
    Weight:
    0.65 LBS
    CHAIN SIZE:
    420
    MOUNTING POSITION:
    FRONT
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    COUNTERSHAFT
    MATERIAL:
    STEEL
    UNITS:
    EACH
    PRODUCT NAME:
    SPROCKET
    TOOTH COUNT:
    14
    $19.95
    Qty in Cart: 0
    Quantity:
    Price:
    $19.95
    Subtotal:
  • SUPERSPROX Countershaft Sprocket - 16-Tooth CST-1902-16-1

    SUPERSPROX Countershaft Sprocket - 16-Tooth CST-1902-16-1

    SUPERSPROX

    $29.95
    If you're running a countershaft sprocket that can't handle the demands of high-RPM racing or aggressive off-road riding, you're sacrificing both performance and reliability. The SUPERSPROX 16-Tooth Countershaft Sprocket delivers the durability of...
    12121742
    SKU:
    12121742
    Availability:
    Ships Same Business Day
    Weight:
    0.45 LBS
    MOUNTING POSITION:
    FRONT
    RIDING STYLE:
    OFF-ROAD
    TOOTH COUNT:
    16
    TYPE:
    COUNTERSHAFT
    CHAIN SIZE:
    520
    RIDING STYLE:
    STREET
    PRODUCT NAME:
    SPROCKET
    MATERIAL:
    STEEL
    UNITS:
    EACH
    Qty in Cart: 0
    Quantity:
    Price:
    $29.95
    Subtotal:
  • SUPERSPROX Countershaft Sprocket - 17-Tooth CST-1904-17-1

    SUPERSPROX Countershaft Sprocket - 17-Tooth CST-1904-17-1

    SUPERSPROX

    $34.95
    A countershaft sprocket is your direct connection between engine power and wheel traction—choose one engineered for durability and efficiency, and you'll notice smoother power delivery and extended component life. The SUPERSPROX 17-tooth countershaft...
    12121718
    SKU:
    12121718
    Availability:
    Ships Same Business Day
    Weight:
    0.60 LBS
    RIDING STYLE:
    STREET
    MOUNTING POSITION:
    FRONT
    CHAIN SIZE:
    525
    PRODUCT NAME:
    SPROCKET
    RIDING STYLE:
    OFF-ROAD
    TOOTH COUNT:
    17
    TYPE:
    COUNTERSHAFT
    MATERIAL:
    STEEL
    UNITS:
    EACH
    $34.95
    Qty in Cart: 0
    Quantity:
    Price:
    $34.95
    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

SECURE & SAFE PAYMENT

EASY RETURNS

FAST DELIVERY

AUTHORIZED DEALER