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How To Calculate Drop: Different Angle/Length Stems?

2K views 7 replies 6 participants last post by  woodys737 
#1 ·
Interested in a formula to calculate what the difference in drop would be between these two stems? 110mm -8 degree vs. 100mm -17 degree.

Thanks.
 
#7 ·
info...

woodys737 said:
Interested in a formula to calculate what the difference in drop would be between these two stems? 110mm -8 degree vs. 100mm -17 degree.

Thanks.

Gee, I use good old trig. The stem angles in road bike terms are 82 and 73, so the angle with the ground would be about 9 and zero, with a 73 degree HTA. The rise of the 82 would be 110 x sin9 = 17mm and the other stem has no rise.
 
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