The Wiseco Professional Series forged piston set for Honda R18A is a four‑piston kit engineered for severe‑duty and race use, delivering increased strength and reliable sealing in high‑stress conditions. It comes with premium rings and a fully machined crown to support consistent combustion. Forged from 2618 aluminum with ArmorGlide skirt coating, precision ring grooves, anti‑detonation groove and forced pin oiling. Bore 81.00 mm, compression height 28.50 mm.
Wiseco Honda R18A 81.00 mm Bore 28.50 mm CH -10.00 CC Piston Set