Originally Posted by
e_guevara
Trust me, I know the math.
First off, your math is wrong...
I have an old steel bike fitted with a "short" 60 mm quill stem, ....Increasing the "twitchiness" to 10.88167%. The nearly 11% increase in response is generally regarded as perceptible to most people.
It may or may not be the case for the OP, but even without the math I can "feel" the difference. Thus the reason for the quotation marks on term twitchier in my original post.
Yes, I see I made a math error. I was trying out different scenarios and must not have recorded the right numbers at the end. However in my post I said it was small in a "typical" reduction in stem length, so your 50 mm difference does not really apply. Very few people will reduce stem length even as much as 30 mm, and as you were giving advice/info to the OP one would assume you would be addressing his situation, not a theoretical one. As for knowing the math, it would have helped if you had given some backup for your stance in the 1st place.
Cheers.