Been riding a 55 CC frame with 55.5TT and 12cm stem for a long time. Recently realized I'm way long in the top tube. When on the hoods very stretched out. Anyways I need help with my fit. Here are my stats:
Trunk 67cm, forearm 34, thigh 62, lower leg 56, sternal notch 147.4, inseam 85.9, arm 62, height 179. Here is my dilema according to all the fit programs, (competitivecyclist.com, wrenchscience.com etc) they have me on a CC frame approx 55.5 to 56 with a top tube of 53.6 to 54 cm. Right now I'm on a Colnago c50 57CM CT (73 degree ST with a 55.6 TT and 12 CM stem. I feel really long plus with the seat almost all the way forward I'm still 1.75CM behind the spindles. The only way to get a 54cm top tube in a Colnago is to go with a 55CT (53CC)74 degree ST frame. Is that too small for me? Any sizing experts on here have any ideas for me?
It seems like Top tube length is more important to good fit than ST length.
Any help much appreciated.