I've been trying to research this but have struck out. I'm looking at a British-built racing frame online that has 120mm rear dropout spacing and is supposedly built for 700c rims. With my meager knowledge of frame-building history, I was sure that this frame would have been built for 5-speed 27" wheels (which I have all ready to go). But then I began to wonder if this may have been built for 700c tubulars rather than 27" clinchers. Were british frames made with 120mm. dropouts for 700c rims?