I've been rebuilding an old road bike and wasn't real sure of the rim size. (I got them on a trade with no tires on them). Anyway I bought some 700c tires and mounted them and they went on hard! I mentioned this to a friend and he said they might be 27" rims. Is it possible if you're dumb enough and strong enough to make this mistake?
The rims are a good quality aluminum and I thought 27'' were the old chrome rims.