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a simple TREK sizing question....(8 posts)

a simple TREK sizing question....5ive
Mar 27, 2002 6:07 AM
Are Trek's measured center of the bottom bracket to the top of top tube? or to the top of the seat collar?

Also, did they ever make 53cm OCLV frames?
re: a simple TREK sizing question....Elefantino
Mar 27, 2002 6:22 AM
Center to top.

http://www.trekbikes.com/bikes/2002/road/geometries/5500_geo.html

FWIW,
Mike
re: a simple TREK sizing question....Chen2
Mar 27, 2002 6:56 AM
The OCLV's actually measure to the top of the seat tube, as it extends above the top tube and is hidden behind the collar. I've never heard of a 53, I think they are all even numbers. I have a 56cm 5500, the c-c measurement is 52cm. The top tube length is 56.1cm.
~Al
re: a simple TREK sizing question....elviento
Mar 27, 2002 9:58 AM
A 53cm OCLV does exist but it's under the Lemond brand and the same as a 56cm trek. Built by the same company with different brand names and a different way of measurement.
re: a simple TREK sizing question....5ive
Mar 27, 2002 10:19 AM
Thanx for the info Chen2. This is what I heard from other people who owned Trek's, but the geometry drawing on the Trek website appears to measure the frame to the top of the toptube. I own a 52cm C-C Pinarello Prince and was trying to find a comparable size on Trek. BTW, I guess Treks are known for longish top tube? My Prince top tube only measures 53.7cm. If I was to go by Trek's top tube sizing I fall somewhere between 52cm and 54cm frames.
Depends on how you compare.Chen2
Mar 27, 2002 12:10 PM
Example, my 56cm OCLV has a 56.1cm top tube, that's pretty much "square". Where the Treks are a bit different is that the top tube is lower on the frame as compared to a classic European frame. And the head tube is a bit shorter which may mean more spacers below the stem, I have 3cm of carbon spacers on my Ouzo Pro fork. I made a comparison between my Trek and my friend's C-40, both are 56cm. Basically similar but my top tube was 1cm lower and his was 1cm shorter. His wheelbase was 1 cm shorter. The seat tube lengths were the same. Of course the angles are different but I didn't try to measure angles. (And yes, the Trek is faster.)
~Al
Is the bike faster or is it the rider mmmIcefrk13
Mar 27, 2002 3:08 PM
Is the bike faster or is it the rider mmmChen2
Mar 27, 2002 3:38 PM
The vintage motor was capable of a higher rpm.
~Al