Introducing the last piston option your 900 Rotax engine will ever need!
The WSRD Ultimate - Big Pin Piston Set is featured in all of our big horsepower engine packages; V3, V4 and our coming soon V5! From class records powering 46/50mm turbos to supporting WSRD, D&M Racing, K&T Performance, and many others at the absolute highest level of performance; this piston is for you! This piston option is paired with our HD Ultimate Connecting Rod set requiring a full rotating assembly balance.
