I know you want a frameset only, but if you ride a 56cm, get this https://www.lfgss.com/conversations/339045/#comment15481405
Ooh that's a tempting deal. Has anyone tried 650b to get slightly wider tyres on the Mason Definition? Even something like a 42-44mm 650b gives you a bit more capability. (And, as I understand it, a similar total diameter to 700x25c).
700x42 definitely doesn't fit. I have one in the front on the turbo setup right now. Pretty sure my 650Bx47mm won't fit on the Resolution either.
@LeBlaireau started
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I know you want a frameset only, but if you ride a 56cm, get this https://www.lfgss.com/conversations/339045/#comment15481405