Shimano M785 Chainset Replacement Rings

tofu21
tofu21 Posts: 359
edited February 2012 in MTB buying advice
Hi,

I've got a Shimano M785 chainset that is currently 28/40.

I'm thinking about replacing the rings down to 26/38 as I'm a big jessy! :oops:

I've got a blackspire 26 ring for the small ring.

I would go for Shimano 38T ring but they haven't come out with anything yet.....

What options are there for the 38T ring that keeps reasonable shifting performance?

Thanks
Simon

Comments

  • njee20
    njee20 Posts: 9,613
    Are they a standard 64/104mm BCD? The M985s are 88mm, limits what rings you can use to virtually none!
  • tofu21
    tofu21 Posts: 359
    Luckily it is the standard 64/104 setup.
  • njee20
    njee20 Posts: 9,613
    In that case I'd use a TA Chinook.
  • tofu21
    tofu21 Posts: 359
    I've always like the look of the TA rings. Do you know how are they at shifting on a double?
  • njee20
    njee20 Posts: 9,613
    How would it make any difference :?

    I used them on 30/42 and 28/40 and they were fine.
  • tofu21
    tofu21 Posts: 359
    I was expecting that shiffing a bigger "gap" on a double would be harder.

    But now that I think about it, going from a 36 to a 38 on a double is the same change in teeth as on a tripple going from 32 to 44.

    I'll get my coat....
  • njee20
    njee20 Posts: 9,613
    Correct. Never had a problem at all personally, and I used Chinooks for nearly 4 years.

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