Originally Posted by
dayvurd
ah thanks for clearing that up.
i would assume that theyre ISO tapers because im from the UK so generally ISO tapers are used over here. i am pretty close to 125 mm on length but im stuck inbetween a size on a new purchase i can either go too short at 118mm or too long at 122mm. does 4mm even matter?
That assumption has a good chance of being wrong. It's all about the crank manufacturers and JIS is very common. Probably more common than ISO. Be sure before you buy, it matters.
Your crank will dictate which taper type and which spindle length to use. What crank is it?