Cannondale and Specialized geometry help

Discuss light weight issues concerning road bikes & parts.
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digiadaamore
Posts: 56
Joined: Tue Aug 07, 2012 2:59 am

by digiadaamore

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;

lobular
Posts: 69
Joined: Fri Oct 03, 2008 12:37 pm
Location: Australia

by lobular

Why not a 54 in the Allez? It's geometry is a lot closer to the Canondale 54 (I ride 54 Supersix and my measurements are close to yours). You won't get the drop you need with the higher headtube of the 56.

by Weenie


GT56
Posts: 571
Joined: Fri Jun 05, 2009 9:40 am
Location: Switzerland

by GT56

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 ?
Last edited by GT56 on Sat Oct 05, 2013 6:11 am, edited 1 time in total.

Antoine
Posts: 436
Joined: Tue May 03, 2011 6:36 pm
Location: France

by Antoine

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.

Boralb
Posts: 113
Joined: Sat Aug 22, 2009 11:44 pm

by Boralb

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

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