ok i have a question to ask of those who understand geometry better than i do. I am currently riding a 54cm cannondale with a saddle height of 73cm, 55cm reach, 6cm of setback and 12cm of drop i have a 120 -8 stem at the moment. im 5'11" but have a relatively short 31" inseam. now im looking at a specialized allez sworks frame in 56cm, now i realize the top tube length is longer but could i achieve my position on the specailized frame? ive looked at the charts and i believe i could but im not that familiar with geo in general. here are the charts
http://www.google.com/imgres?imgurl=htt ... CEYQ9QEwBA" onclick="window.open(this.href);return false;
http://www.google.com/imgres?imgurl=htt ... CDAQ9QEwAQ" onclick="window.open(this.href);return false;" onclick="window.open(this.href);return false;
Cannondale and Specialized geometry help
Moderator: robbosmans
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if you check a current cannondale, (including stack and reach) you will find that a 56 specialized is far too big
btw, i wonder how you get to a 12 cm drop with a 73 cm saddle height with the cannonondale
is that top of saddle to the ground minus top of bar to the ground ?
btw, i wonder how you get to a 12 cm drop with a 73 cm saddle height with the cannonondale
is that top of saddle to the ground minus top of bar to the ground ?
Last edited by GT56 on Sat Oct 05, 2013 6:11 am, edited 1 time in total.
I was thinking the same, 12 cm of drop seems a lot.
I also have à size 54 Cannondale (CAAD 9) with about 73 cm saddle height and approximately 9 cm of drop (with 1 cm spacer above the cone and -10° 120 mm stem).
The geometry of older and newer Cannondales are similar, for a 54 stack is 54,4 and reach is 38,4.
So a 56 Specialized is too big, you can take either 54 or 52 if you need a lot of drop.
I also have à size 54 Cannondale (CAAD 9) with about 73 cm saddle height and approximately 9 cm of drop (with 1 cm spacer above the cone and -10° 120 mm stem).
The geometry of older and newer Cannondales are similar, for a 54 stack is 54,4 and reach is 38,4.
So a 56 Specialized is too big, you can take either 54 or 52 if you need a lot of drop.
You can observe my position on a 56 frame. Very similar saddle height with yours, and 56 frame feels big to me.
http://weightweenies.starbike.com/forum/viewtopic.php?f=3&t=114059&start=90
http://weightweenies.starbike.com/forum/viewtopic.php?f=3&t=114059&start=90