This is a complete engine removed from a 2025 KTM 85sx with 0 hours. The 2025 KTM 85 SX packs fresh firepower and gives an updated engine to the starting gate. weighing 120g less than the previous generation, the updated engine produces higher performance and optimized integration with the chassis updates. This means more punch in the low and mid-RPM range, more torque, and improved reliability. This is made possible by a new cylinder head and spark plug, ignition, exhaust, shift drum, and updated carburetor settings.