Sprockets one less sprocket tooth = 1 more mph?

Discussion in 'Transmission / Drivetrain' started by willfargo, Oct 6, 2011.

  1. willfargo

    willfargo Member

    I was looking for a smaller rear sprocket so i can achieve a higher top speed. There was an ebay seller that said "for every tooth you remove on a sprocket, you gain 1mph. is there ANY truth to that?
     

  2. Neon

    Neon Member

    That's a good generalization. I guess the answer would be yes, but there are many factors in that. It can lead to more than just 1mph or it can do almost nothing.
     
  3. motorpsycho

    motorpsycho Active Member

    yes, neon is right, there are MANY factors(rider weight, bike weight, wheel size, tire size, etc.)
    for example, i had 20" wheels with a 44 tooth sprocket, top speed with me on the bike was around 23 mph. dropped down to a 41 tooth sprocket and added a slightly taller rear tire. Top speed with me on the bike now is @ 28 mph.
    but if my friend who weighs about 50 pounds more than me, gets on my bike, the top speed drops slightly.
     
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