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Old 05-14-20 | 01:29 PM
  #40  
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70sSanO
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Joined: Feb 2015
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From: Mission Viejo

Bikes: 1986 Cannondale SR400 (Flat bar commuter), 1988 Cannondale Criterium XTR, 1992 Serotta T-Max, 1995 Trek 970

I’m 68 and “now” 5’8” with 29” inseam. I rode 170mm for decades on my road bike. When I started mountain biking I rode 175mm.

About 5 years ago, I found an NOS Ultegra 6503 crankset with BB for less than $150. It was 172.5mm. Now I ride 172.5mm on my road bike and haven’t noticed any difference.

John
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