If you have the stock bearings (rod and crank), look on the underneath of them. Many times they will have printed on them "std" for standard, .010 or the such. I try to get what was in it, and try to avoid turning the crank. Saves money. In fact, I only had one crank turned. You can polish the crank, or have it done. Turning the crank turns into $$$ for your type of build.