Old 12-22-12, 07:04 PM
  #6  
HillRider
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Bikes: '96 Litespeed Catalyst, '05 Litespeed Firenze, '06 Litespeed Tuscany, '20 Surly Midnight Special, All are 3x10. It is hilly around here!

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The radial difference between a 52T or 53T and a 50T chainring is about 4 to 6 mm and that's a lot to file off.
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