Description
Two-stroke KX125 riders running the 1992-2005 chassis still need a front sprocket that will not round off after a season of hard shifting, and that is what this ProTaper 13-tooth piece delivers.
Stock front sprockets on most powersports machines are made to a budget, not to a race schedule, and they show it after a season of hard riding. ProTaper addresses that with a purpose-built replacement engineered around real load data instead of assumptions.
Features and Benefits
- CNC machined and internally broached to tight tolerances for a precise fit on the countershaft
- Cut from case-hardened, core-refined chromoly steel for a strong tooth root and long service life
- Computer-engineered tooth profile helps cut chain drag and keeps power moving to the rear wheel
- Balanced design reduces vibration transfer through the drivetrain at speed
- Proprietary surface coating slows corrosion and wear compared to bare steel sprockets
- Manufactured specifically as a 13-tooth front sprocket for 1992-2005 KX125 two-stroke motocross bikes
ProTaper builds this front sprocket for 1992-2005 KX125 two-stroke motocross bikes, and the tooth count is fixed at 13, so the ratio math on your bike stays predictable from the first ride to the last. Riders swap sprockets to chase acceleration off the bottom or top-end pull on faster tracks, and having a dependable 13T option means you are not guessing at how a used part will hold up. This is not a graphics kit or cosmetic upgrade, it is a drivetrain component that takes direct load every time the throttle opens, so the metal and the machining behind it matter more than the price tag.
Why buy ProTaper from IPD Racing
IPD Racing has stocked and raced ProTaper drivetrain parts since 2005, and this sprocket is the same part number our own mechanics reach for when a customer’s bike comes in with a stretched chain or rounded teeth. This 13-tooth front sprocket for the 1992-2005 KX125 is part number 038391, genuine ProTaper equipment from IPD Racing. Verify your model year falls within that window before ordering, and ask IPD Racing if you need help cross-referencing an older chassis.
