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Old 09-24-18, 07:10 PM
  #17  
kcblair
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Join Date: Nov 2016
Location: Mass.
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Bikes: '80 Strayvaigin, '84 Ciocc Aelle-Shimano 105, '90 Concorde Astore /Campy Triple ,85 Bridgestone 500/Suntour, 2005 Jamis Quest, 2017 Raleigh Merit 1, Raleigh Carbon Clubman

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Originally Posted by dddd View Post

Shimano 7s cog spacing is about the same as Campag 8s, but note that the 2-3 cog spacer (between 2nd and 3rd-smallest cogs) is 3.3mm instead of 3.1mm like the rest of the plastic spacers. The 3.3mm spacer has a darker color. It can be replaced with a 3.1mm spacer if there is any indication that this would help with the indexing.
Thanks, great idea. Just sacrificed a 7 speed cassette and salvage a 3.1 mm spacer . Good project for tomorrow, as it will be raining for 2 days. Might as well make this 13x34 casstte perfect. Why is that one spacer 3.3mm ?KB
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