Bikeforums.net is a forum about nothing but bikes. Our community can help you find information about hard-to-find and localized information like bicycle tours, specialties like where in your area to have your recumbent bike serviced, or what are the best bicycle tires and seats for the activities you use your bike for.tamaso206
03-16-06, 01:38 PM
I am part way into a bike build using a (early '90s?) Bianchi frame, and the cheapo Ritchey Logic expert 1 1/8 threadless headset I just got off nashbar doesn't fit, the cups being too big for the head tube. The 1 1/8 fork i got fits into the head tube just fine, the head tube diameter is 35mm outer, and 30mm inner. The cups are 33 or 34mm, I am wondering if this is standard for 1 1/8 headsets, as i can't really seem to find these measurements on specs.