Thread: Poll Question: Crank Arm Length
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Old 07-27-12 | 05:50 AM
  #64  
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jimmuller
What??? Only 2 wheels?
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Bikes: 72 Peugeot UO-8, 82 Peugeot TH8, 87 Bianchi Brava, 76? Masi Grand Criterium, 74 Motobecane Champion Team, 86 & 77 Gazelle champion mondial, 81? Grandis, 82? Tommasini, 83 Peugeot PF10

Re crank length vs. terrain, switching from 170 to 175 cranks is equivalent to shifting from a 24T cog to a 24.7T cog. (There is one on ebay right now. ) Which is to say it may matter for one's ergonomics but the effect on gear ratio is negligible.
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