Originally Posted by
Jrasero
Thanks for the input
but I am a little confused. The 47CM(XS) has a TOP TUBE CENTER TO CENTER of 50.5CM while to 50CM(S) has a 52CM TT. Kestrel lists the TT as center to center, that doesn't mean effective TT right? So is the 47CM's TT effective length closer to a 52CM?
Also the head tube of the XS is listed at 12CM/120MM and the S as 14CM/140MM.
If your new to road cycling don't get too ingrained in all the various tube dimensions and lengths... in the big scheme of things it's over thinking things unless your some kind of elite cyclist.
I've cycled all my life and ride a 60cm frame which according to today's standard of small frames is apparently too big, but look at the bikes of old...
I would say a few good measures for whether the frame is the correct size are:
- Standover height, a couple of inches between cross bar and groin
- Can you see the front hub when you are sat on the bike resting on the bars? you shouldn't be able to
- Seat stem visible length approx. same length as head tube
That's all pretty traditional, but the #1 thing that matters is how do you feel on the bike? Do you like it, are you comfortable. Let your body tell you what is right for you...