I use 67" (46x18 on 700c x 25mm tyres) for fixed Audaxing including real hills.
I think that just shows I'm a complete wuss, as I'm using not far off that (69") for flat-ish rides (TBH I can ride up Cat & Fiddle on that but its somewhat negated by the need for a 20-minute lying down wheeze). So would sticking a 20t on the back (55") give me a sensible hill gear - or is that going to low?
I think that just shows I'm a complete wuss, as I'm using not far off that (69") for flat-ish rides (TBH I can ride up Cat & Fiddle on that but its somewhat negated by the need for a 20-minute lying down wheeze). So would sticking a 20t on the back (55") give me a sensible hill gear - or is that going to low?