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chain rub on adapter claw nut solutions

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chain rub on adapter claw nut solutions

Old 06-01-17, 04:34 PM
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chain rub on adapter claw nut solutions

I think I have some idea how to resolve, but figured I'd ask first to verify. Some of you may be aware of a steel frame project bike I have in the works, and part of it involved installing a suntour derailleur adapter claw. I finally got around to installing cables and working on indexing, but the rub (literally haha) involves the chain rubbing on the back plate of the claw nut on the smallest cog. When searching for other posts I think I saw someone used a 1mm washer to help mitigate this. So the thing I was curious about (and this is an offshoot of a previous topic I started) is whether I should get 130mm hub wheels and get 5mm of spacers, or get a wheelset with 135mm hub and use an additional washer to add additional space between the cassette and adapter claw nut (the frame itself has 135mm spacing). I was eyeing a 135mm wheelset at a local shop, so wanted to check before I committed to anything
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Old 06-01-17, 05:01 PM
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Either way will be fine. The 135mm wheels will be less expensive than equivalent 130mm wheels, because the equivalent hubs are significantly less expensive.

With 130mm wheels; you'll want two 2˝mm spacers, not 5mm spacers. 130 + 2 x 2.5 = 135
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Old 06-01-17, 05:32 PM
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I had a similar problem some years back, that it wouldn't let the chain off the smallest cog.
I used a truss head screw from the 'inside-out" and a nut on the outside. It gave me just enough.
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