How many mph does a 21 speed bike go?

  • Thread starter Thread starter alex
  • Start date Start date
depends on the weight and gearing of the bike and the fitness of the rider
.fyi,30mph would be a very high rate of speed on a bike that isn't going downhill.
below is a speed calculator
 
exactly what they said and if you hold onto the bike while standing beside it and let it go...it wont go anywhere it will fall over. Only YOU can make it go 1mph or above! Now if you get to lets say 21mph then it will also depend on the type of bike and the width of tire you are using, the wider the tire the slower you go, this is called rolling resistance. The narrow the tire then potentially the faster you may go = less rolling resistance. Get on and pedal, get serious about it and do it every day and you will go fast. Get on it only one time a month or not at all and you will never know exactly. Sticking to riding a bike for health reasons takes determination. Good luck - ride hard!!
 
A bike, any bike goes as fast as you make it. Bikes are still powered by the people riding them, and more or less speeds won't change how fast you CAN go. Certain speed settings make certain routes less work for you to take, like uphill, downhill, etc. But how fast the bike itself can go is up to the rider.
 
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