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Old 04-16-21, 08:08 PM
  #19  
Bingod
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Bikes: Giant Anyroad

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Looking at a gear calculator for a bike with with 40mm tires - and just as an example, if you are tackling a steep trail at about 5mph in your 40/42, your cadence will be about 65rpm. For your cadence to be at 75rpm for the same speed you would need a 34T chainring.
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