CrowSeph

Hello. Has anyone ever modified a steel roadbike frame to fit 29x2-20/2.30 tyres?
I have an old frame, not valuable so i can modify it. The idea of a custom gravel seems cool...
Has anyone have done it? (or know who has done it? or maybe a video or a link?)

unterhausen

I could if I wanted. I have thought about this a lot because I want to change a '80s Italian racing bike to a randonneur. Of course, the tire problem isn't quite as bad. The problem with 29x2.2 tires is that you have to fit the wheel and chainring in. So either needs longer stays or some fiddling. The other problem is you don't get the geometry you want, unless by some miracle you find a frame that is very unusual. Fitting a tire in a fork is going to mean a longer fork, so you'll have a very high bottom bracket or a very slack headtube or both.

I don't mind relatively long stays, so the big problem for me is the fork/bb issue.

I suggest considering 650b. Also, 700x50mm tires don't require a lot of changes other than the chainstays.

CrowSeph

Very interesting!

elqsigue

Hello, I have a frame from a mtb from the 90s and I also tried putting 29-inch wheels on it, but it is not highly recommended because the wheel needs tolerance in the frame, I went back to the 26-inch ones