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Can I use friction shifters with a clutch style rear derailleur like the 2014 Shimano Deore M615 Shadow Plus? Or does this put extra tension on the shift cable that will cause slips with a friction setup?

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  • 1
    As I read the "clutch" description, it's merely a friction damper to reduce chain slap (which has got to get bad on those 17-cog rear clusters). No doubt it's rigged so that when cable pull increases a bit the friction is reduced, to make it easier for the chain to "climb", but that effect would be essentially the same with indexed shifters and friction shifters. Jan 10 '14 at 20:41
  • Did you ever try this? I have a 9 speed bike with bar ends that could really use a clutch, considering the same
    – AlexCuse
    Jun 4 '16 at 12:08
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This is a good question. I speculated about this over the weekend and came to two conclusions.

  1. Friction shifters were designed for narrow(er) rear cassettes. The largest cluster I've ever seen a friction shifter work on is 8 speed. I don't think it will pull enough cable for you to access all the speeds in your ten speed cluster. EDIT: As an insiteful commenter noted, the cluster is only 1.8 mm wider for a 10 speed than an 8 speed so it should pull enough cable for your needs.
  2. Trimming will be more difficult than with index shifting. The industry has added several gears and not much space to the rear triangle. The result is thinner gears and chains, so dialing in the rear trim will be more difficult.

So, will it work? Probably. Is it ideal? Probably not, but it's worth continuing research about the topic. Just my 2 cents.

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    A Shimano 10 speed cassette is only 1.8mm wider than an 8 speed. There should be enough spare cable in the system to manage that. I agree with 2 totally.
    – alex
    Jan 13 '14 at 14:38
  • Cool, I didn't know that, @alex, thanks for the info Jan 13 '14 at 14:48

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