Yamaha YZ125 Sprockets

Browse 19 sprockets matched to the 1974–2026 Yamaha YZ125 by fitment data, from brands including ProTaper, BikeMaster and Vortex Racing.

Looking for something else for this bike? See all Yamaha YZ125 parts. Not sure your model year is covered? Use the vehicle search or contact us before ordering and we will confirm fitment.
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  • ProTaper Yamaha Front Sprocket - 13 Teeth

    ProTaper Yamaha Front Sprocket - 13 Teeth

    ProTaper Yamaha Front Sprocket - 13 Teeth
    $29.99
  • ProTaper Yamaha Front Sprocket - 14 Teeth

    ProTaper Yamaha Front Sprocket - 14 Teeth

    ProTaper Yamaha Front Sprocket - 14 Teeth
    $29.99
  • ProTaper Yamaha Front Sprocket - 13 Teeth

    ProTaper Yamaha Front Sprocket - 13 Teeth

    ProTaper Yamaha Front Sprocket - 13 Teeth
    $29.99
  • ProTaper Honda/Yamaha Rear Black Sprocket - 53 Teeth

    ProTaper Honda/Yamaha Rear Black Sprocket - 53 Teeth

    ProTaper Honda/Yamaha Rear Black Sprocket - 53 Teeth
    $96.99
  • ProTaper Honda/Yamaha Rear Blue Sprocket - 52 Teeth

    ProTaper Honda/Yamaha Rear Blue Sprocket - 52 Teeth

    ProTaper Honda/Yamaha Rear Blue Sprocket - 52 Teeth
    $96.99
  • ProTaper Honda/Yamaha Rear Black Sprocket - 52 Teeth

    ProTaper Honda/Yamaha Rear Black Sprocket - 52 Teeth

    ProTaper Honda/Yamaha Rear Black Sprocket - 52 Teeth
    $96.99
  • ProTaper Honda/Yamaha Rear Blue Sprocket - 51 Teeth

    ProTaper Honda/Yamaha Rear Blue Sprocket - 51 Teeth

    ProTaper Honda/Yamaha Rear Blue Sprocket - 51 Teeth
    $96.99
  • ProTaper Honda/Yamaha Rear Black Sprocket - 51 Teeth

    ProTaper Honda/Yamaha Rear Black Sprocket - 51 Teeth

    ProTaper Honda/Yamaha Rear Black Sprocket - 51 Teeth
    $96.99
  • ProTaper Honda/Yamaha Rear Blue Sprocket - 50 Teeth

    ProTaper Honda/Yamaha Rear Blue Sprocket - 50 Teeth

    ProTaper Honda/Yamaha Rear Blue Sprocket - 50 Teeth
    $96.99
  • ProTaper Honda/Yamaha Rear Black Sprocket - 50 Teeth

    ProTaper Honda/Yamaha Rear Black Sprocket - 50 Teeth

    ProTaper Honda/Yamaha Rear Black Sprocket - 50 Teeth
    $96.99
  • ProTaper Honda/Yamaha Rear Blue Sprocket - 49 Teeth

    ProTaper Honda/Yamaha Rear Blue Sprocket - 49 Teeth

    ProTaper Honda/Yamaha Rear Blue Sprocket - 49 Teeth
    $96.99
  • ProTaper Honda/Yamaha Rear Black Sprocket - 49 Teeth

    ProTaper Honda/Yamaha Rear Black Sprocket - 49 Teeth

    ProTaper Honda/Yamaha Rear Black Sprocket - 49 Teeth
    $96.99
  • ProTaper Honda/Yamaha Rear Blue Sprocket - 48 Teeth

    ProTaper Honda/Yamaha Rear Blue Sprocket - 48 Teeth

    ProTaper Honda/Yamaha Rear Blue Sprocket - 48 Teeth
    $96.99
  • ProTaper Honda/Yamaha Rear Black Sprocket - 48 Teeth

    ProTaper Honda/Yamaha Rear Black Sprocket - 48 Teeth

    ProTaper Honda/Yamaha Rear Black Sprocket - 48 Teeth
    $96.99
  • ProTaper Honda/Yamaha Rear Black Sprocket - 47 Teeth

    ProTaper Honda/Yamaha Rear Black Sprocket - 47 Teeth

    ProTaper Honda/Yamaha Rear Black Sprocket - 47 Teeth
    $96.99
  • ProTaper Yamaha Rear Black Sprocket - 46 Teeth

    ProTaper Yamaha Rear Black Sprocket - 46 Teeth

    ProTaper Yamaha Rear Black Sprocket - 46 Teeth
    $92.99
  • BikeMaster Gas Gas Yamaha Front Sprocket 520 13T

    BikeMaster Gas Gas Yamaha Front Sprocket 520 13T

    BikeMaster Gas Gas Yamaha Front Sprocket 520 13T
    $14.99
  • BikeMaster Honda Yamaha Rear Steel Sprocket 520 50T - Black

    BikeMaster Honda Yamaha Rear Steel Sprocket 520 50T - Black

    BikeMaster Honda Yamaha Rear Steel Sprocket 520 50T - Black
    $42.99
  • Vortex Racing Steel Rear Sprocket 520 49 Tooth- Black
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    Vortex Racing Steel Rear Sprocket 520 49 Tooth- Black

    Vortex Racing Steel Rear Sprocket 520 49 Tooth- Black
    $58.61 $68.95