Thread: Same Gear Inches-Which is more efficient-Using the Large or Small Chainring
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Old 10-27-15 | 12:59 PM
  #63  
Joe Minton
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Joined: Aug 2010
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From: Southern California

Bikes: Gary Fisher Hi-Fi Deluxe, Giant Stance, Cannondale Synapse, Diamondback 8sp IGH, 1989 Merckx

Hmm --- why would 52x28 wear faster than 39x21? What else is going on besides pin/bushing rotation wear?

Joe
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