Did an inch used to be smaller? I have an original Cambrige, Massachusetts-built Merlin Mountain frame (circa 90's) with the 1" head tube. I can't seem to get ANY headset race to fit in the steerer tube. The races are just 32/nd of an inch too big. I have tried both a new threadless Ritchey, and an old Campy (threaded) headset as well as some other brand, all are one inch and all are a 32nd of an inch too big.
I have built up at least 10 bikes-- old new, both threaded headsets and thread less: Campy, Stronglight, Ritchey, Aheadset, Shimano, Mt bikes and road bikes,but this is just plain weird to me.... Any help would be appreciated. Also the fork race does not fit, by about the same 32nd of an inch.. too small to fit the fork, but that doesn't worry me as much as getting something to fit in the steerer tube. By the way I would like to set this up threadless but will go with anything that fits.