Originally Posted by
rruff
No you don't. Look at my explanation and example above. Two frames with the same Reach can require stems of different length, if their Stack is different. If Reach was defined at a fixed height and not allowed to vary with Stack, then you would use the same stem length with every frame that has the same Reach.
You are hung up on using stack and reach separately to compare frames. A more useful way of using the measures is to use them together to find the position of the top tube of the bike, and figure out changes to stem position from there.
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Cat 2 Track, Cat 3 Road.
"If you’re new enough [to racing] that you would ask such question, then i would hazard a guess that if you just made up a workout that sounded hard to do, and did it, you’d probably get faster." --
the tiniest sprinter
Last edited by Brian Ratliff; 07-03-12 at 12:39 PM.