Old 08-28-21, 05:03 PM
  #4  
2old
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How much bigger can the chainring get before it interferes with the frame (seat stay)? You might be better off with an 11-? freewheel. If you're at 21 mph with a pedal speed of 90 RPM now, you could increase it to 27 or so mph with an 11 tooth small gear.
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