The WISECO Complete Crankshaft & Performance Piston Engine Kit delivers precision‑engineered internal components designed to enhance reliability and power delivery for a range of two‑stroke and four‑stroke applications. Engineered to meet the exacting tolerances required by high‑performance riders, the kit integrates a forged crankshaft with performance‑grade pistons, providing a balanced assembly that supports higher rev limits and improved combustion efficiency while maintaining the durability expected from OEM‑level parts.
This kit is offered in multiple model‑specific configurations, ensuring a direct fit for a broad spectrum of WISECO engines: BNSHE models from 1987‑2006, CR85R (2003‑2004), KX65 (2000‑2005), KX100 (1998‑2005), YZ85 (2002‑2017), YZ125 (2003‑2004), plus two additional options not listed here. Selecting the appropriate configuration guarantees seamless installation and optimal performance for the designated engine series.