Thread: Bottom bracket length for correct chainline?
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Old 02-14-17 | 09:53 PM
  #13  
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70sSanO
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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

The Stronglight Impact Triple is considered to be a 9/10 speed road crank, so the rear hub would be 130mm. Since the Trek FX 7.4 has a 135mm hub, (mtb), it would appear that a 118mm might be a better length. Have no clue why Treefort would suggest 113mm, except they think it is going on a road bike.

Do new road bikes still have a 68mm shell width or do they have 73mm?

John
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