Originally Posted by
Kommisar89
That gives me an idea on a completely different topic. I wonder if a frame builder could add crimps like that to an existing bike for more tire clearance. My Panasonic PT-3500 comfortably fits 700x38C tires but it does not have any sort of crimp or indentation in the chainstays. If they could be added it could probably go 42mm.
Absolutely! I crimped the chainstays on a 90's vintage Bianchi frame so that I could fit 650b wheels with fatter tires. I carved a male pattern out of dogwood (very hard) in the shape of the crimp + a concave piece for the outside of the stay, and then used them with a C-clamp to do the deed. I did practice on one of my wife's metal broom handle first. She wasn't too happy.