A more narrow rim will give the tyre a taller and thinner profile.
edit: added image
Duh! I misread your original post. I thought it said you didnt realise how wide these rims were not your old ones. Still, its seems unusual. I have had tight tolerances on three steel road bikes I have had, but there has always been miles of space under the brake.
Duh! I misread your original post. I thought it said you didnt realise how wide these rims were not your old ones. Still, its seems unusual. I have had tight tolerances on three steel road bikes I have had, but there has always been miles of space under the brake.