so I know I've seen this before but I've been searching forever and can't find it:
if you have_____RPM than you go_____MPH with a __front sprocket and a __rear sprocket with 17inch rear wheel or ___radius.
does anyone remember this post? and what the reduction is from the crank to front sprocket?
to answer the question how fast is 12000 RPM with 15x36 gearing?