Quote Originally Posted by Suesi
Hi
I am looking for a road bike. More specifically at the Giant ocr1.
I noticed someone on here mentioned getting one and was wondering how they liked it and how it fit? I had fitting problems at the lbs. The said the XS worked but my height was in the S range (which they were out of!) I thought maybe they were just trying to sell the bike, what do I know, my other bike is a mtb 14 years old. So now I am confused, anythoughts about sizing from the LBS might be rigged to sell the bike they have?
Maybe I'm just paranoid!
That depends. Height is not necessarily the best indicator of bike size, because leg length can vary a lot even among persons of the same height. Torso and arm length are also important for determining what length top tube works for you.

Did they measure your inseam at the LBS? That would be the distance from your crotch (in bike shorts) to the ground, measured barefoot and with your feet about 6 inches apart. You take that measurement (in centimeters) and multiply by 0.67 to get your approximate frame size. So for example, I'm 5'4.5" and my inseam is 75cm. 75 x 0.67 = 50.25 so my road bike size should be about a 50cm. The size refers to the seat tube length for traditional (non-compact) frames. On compact frames, that would be couple of centimeters smaller. (For example: my road bike is a size 50, but the seat tube actually measures 44cm because it has a sloping top tube.)

According to Giant's info page on compact geometry frame sizing (http://www.giant-bicycle.com/us/050....50.600.100.asp) my height puts me square in the size Small range. But I would go with an XS because: 1) my legs are short in proportion to my height, so the S's standover height is a tad close for me, 2) my arms are long, but I can increase the cockpit length by using a longer stem, 3)my femurs are long in proportion to my leg length, so I tend to push saddles back anyway, and 4) why carry the weight of a size S frame when I can be just as (or more) comfortable on an XS?

I suggest you go to the OCR1's webpage (http://www.giant-bicycle.com/us/030....sp?model=11261) then click on the link for geometry data (just beneath the pic of the frame) and use the page on compact geometry frame sizing (http://www.giant-bicycle.com/us/050....50.600.100.asp) to guide you through.

If you still need help, have someone help you measure your inseam (instructions on how to do it are on the compact geometry frame sizing page). Tell us your height and inseam and I will gladly help you work it out.

Hope this helps,

Cari