Hello guys just a quick one, I’m rebuilding my top end and measured the bore in which resulted being exactly of the service limit , I need it plating really but can’t actually get it plated until a months time I need the bike for a charity race before hand, standard piston is size B 66.35mm but obviously if the bore is almost out of spec will this mean the size B is too small (replace with a size C or D) or would it be okay to go ahead and replace with a size B? Thanks for your time guys! 👌🏻🙏
