You asked we listened This is our new release of the OEM GZR 1mm FULL CIRCLE Crankshaft . fits all zenoah type 2 bearing and 4 bearing crankcases.Crank rod has been grove cut on the bottom of the large end of the rod for extra oiling of the lower bearing Also the top has been drilled for extra oiling also.1 mm stroke,Full circle, This crank is for marine engine only.
Please note this crank uses the wider tigerking or RCMK bearings.
Also this crank you dont have to grind the inside crankcase to make it fit its a drop in replacement for the 29.5 zenoah the wide bearing part # is TK-D004.
another product Gizmomotors.