I have a 1990's steel frame with ultra close clearance on the rear triangle......vertical dropouts so no adjustment, question is what is the narrowest 700c tyre available that won't rub on the seat tube? at present it has 700/20c but even they're too close by about 1mm.....
I have a 1990's steel frame with ultra close clearance on the rear triangle......vertical dropouts so no adjustment, question is what is the narrowest 700c tyre available that won't rub on the seat tube? at present it has 700/20c but even they're too close by about 1mm.....