Originally Posted by
big john
90x11= 229 gear inches x 90 rpm = 69mph. No problem if you ride in a vacuum.
Reminds me, I rode my track bike a few days ago and almost had to grab some brake on a downhill. I hit 28mph on a ~72" gear which comes out to about 130rpm. I had not ridden a fixed wheel in several months so it was a little frightening
