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TotalShanner
@Dibble
I’m not sure about this, I’m not a frame builder and wouldn’t like to bring up Q factor again unjustifiably but that chart seems to say 420mm
Chain stays.
I’ve just roughly measured up on my bike, 60mm wide tyres+5mm each side+15mm for each chain stay means the stays have to be 100mm wide just where the inner chainring is?
There is an 80mm gap between the rim and bottom bracket so even if the stays are as wide as the bb they have to splay at 45degrees for the first say 40mm?
Any ideas? Feel free to DM me