Description
A crankshaft failure leaves you sidelined. The Wiseco WPC153 kit delivers a complete bottom-end solution—crankshaft, bearings, gaskets, and seals all precision-assembled to OEM specs—so you can rebuild with confidence and get back to winning. Whether you’re running a stock rebuild or preparing for race season, this kit eliminates guesswork and ensures your 125 SX has a bulletproof foundation for reliability at high RPM.
Built with shot-peened forgings, caged needle bearings, and optimized oiling geometry, the Wiseco crankshaft handles the demands of 2-stroke racing without compromise. This is a complete, ready-to-install solution for 2001-2015 KTM 125 SX models.
- Fitment: KTM 125 SX (2001-2015)
- Includes: Crankshaft assembly
- Includes: Top end bearing
- Includes: Main bearings
- Includes: Gasket/seal set
- Construction: Double-forged
- Surface treatment: Shot-peened
- Bearing type: Caged needle roller
- Assembly: Factory-assembled
- Precision: Trued to OEM
- Installation: Bolt-on
- MPN: WPC153









