New for 2026 Our GZR 30mm full circle marine crankshaft. These are a ground up new build and share the same metal hardness as Zenoah/RCMK. This new crank features a 9 pin hardened caged needle bearing that is indistructlble. Bearing is sourced from a highly reputuble bearing manufacturer. Has a hardened slotted rod for superior lubrication and small end is drilled for lubrication. This crank will continue to use the bullet proof RCMK/Tiger king whrist pin bearing. No case modifacation needed for fitment. Absolutely the best performance crankshaft built for two-stroke racing engines.

This crank is for marine engine only.