Originally Posted by
repechage
an interesting item to note on this bike:
the top tube runs uphill- my guess 6-8mm higher at the head lug than at the seatlug.
If you measure the head angle accurately, and the fork offset carefully, you will find the trail is pretty low.
Just how it is. Do not be surprised if it is under 30 mm.
I'm a little confused. I have a 1980 Masi GC which is size 53 (MC53). It does not have a sloping top tube. I learned from a real Masi expert that the Masi design was controlled in Carlsbad by use of model frames that were dimensionally as Faliero had intended them, and there was one for each size. However, if the dimensions of my 1980 and this 1974 do not match, either one is wrong, one is a custom, QC at Masi Carlsbad or at San Marco (one of the places mine may have been built) were not up to par, or our measurements are not comparable in some way.