Think about it. Fitment is what it's all about in rodding; whether it's trying to shoehorn a 392 Hemi into a '32 Ford, or a 7-speed Nexus hub into a single-speed frame. As rat rod bikers, we've all dealt with 22.2 mm goosenecks and 21.1 steering tubes, fat tires in skinny frames, and 26 by 1 1/4 tires (do the numbers 570, 590 and 597 have any meaning to you?) Let's not even talk about the multitude of seat post sizes, from 13/16" up to lord-knows what, or chains, which come in so many widths. For this reason, I find it appropriate to name my rat rod bike project "FITMENT", and YOU know why.