Yeah, that 25.6mm measurement may be due to distortion of the tube at the clamp. The 28.6mm OD might be more accurate for determining what's here. I did verify the 57cm from BB CL to top of the seat tube at the top of the clamp curve. I can measure the top tube if it will help anyone figure this out. My experience with soda blasting is it's pretty gentle on chrome. The fine grit soda sold at Harbor Freight won't touch chrome at all, and even with the course grit you really need to crank the pressure and linger to start making it dull. I'll try a little wet sanding as suggested to see if I can find some graphics, first. My biggest worry is finding a headset.
Last edited by Hudson308; 01-28-13 at 10:38 AM.
Reason: Clarified soda blasting comment