Which middle chainring?

noidea
noidea Posts: 623
edited July 2010 in MTB workshop & tech
I have Shimano XT HollowTech FC-M752 cranks with a very warn down aluminum middle ring, I want to replace it with a steel one this time for obvious reasons.

Which should I choose between these two?

M510
http://www.chainreactioncycles.com/Mode ... delID=5699

M532
http://www.chainreactioncycles.com/Mode ... elID=38192

They seem the same except the first one is 104mm, is that the bolt pattern size? It cant be diameter as the 36t model would be different.

p4pb5025755.jpg
A pic encase that helps (old picture before it was warn completely + I know the front mech isn't fitted right in this pic)
<blockquote id="quote"><font size="1" face="Verdana, Arial, Helvetica" id="quote">quote:<hr height="1" noshade id="quote"><i>Originally posted by king andrew the 1st</i>

im currently sitting in front of my pc spinning away on my brothers signature edition
<hr height="1" noshade id="quote"></blockquote id="quote"></font id="quote">

Comments

  • nicklouse
    nicklouse Posts: 50,673
    both have the same BCD. 104mm
    "Do not follow where the path may lead, Go instead where there is no path, and Leave a Trail."
    Parktools :?:SheldonBrown
  • noidea
    noidea Posts: 623
    I might aswell "FAO" these threads to you Nick :D Thanks again!
    <blockquote id="quote"><font size="1" face="Verdana, Arial, Helvetica" id="quote">quote:<hr height="1" noshade id="quote"><i>Originally posted by king andrew the 1st</i>

    im currently sitting in front of my pc spinning away on my brothers signature edition
    <hr height="1" noshade id="quote"></blockquote id="quote"></font id="quote">
  • Monkeypump
    Monkeypump Posts: 1,528
    I would recommend TA Specialties rings (Chinook) as an alternative. Very hard wearing and don't flex at all.

    I assume you can get them to fit your cranks (you can certainly get 104 BCD), but don't quote me on that!
  • pastey_boy
    pastey_boy Posts: 2,083
    the composite slx or xt are great and last ages as they have steel teeth . the ring is reinforced with a composite material so you get the weight of aluminium and the longevity of steel
    Viner Salviati
    Shark Aero Pro
    Px Ti Custom
    Cougar 531
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    Argon 18 E-112 TT
    One-one Ti 456 Evo
    Ridley Cheetah TT
    Orange Clockwork 2007 ltd ed
    Yeti ASR 5
    Cove Hummer XC Ti
  • Chunkers1980
    Chunkers1980 Posts: 8,035
    Yes but they cost...

    You can get 3 Deores for the price of one XT.
  • noidea
    noidea Posts: 623
    Thanks for the posts guys, went for the Deore in the end due to cost, as Chunkers pointed out.
    <blockquote id="quote"><font size="1" face="Verdana, Arial, Helvetica" id="quote">quote:<hr height="1" noshade id="quote"><i>Originally posted by king andrew the 1st</i>

    im currently sitting in front of my pc spinning away on my brothers signature edition
    <hr height="1" noshade id="quote"></blockquote id="quote"></font id="quote">
  • Northwind
    Northwind Posts: 14,675
    Deore just makes more sense, they last forever and they don't weigh much more.
    Uncompromising extremist
  • cavegiant
    cavegiant Posts: 1,546
    I use deore rings as I find them the best, I have tried loads of fancy expensive ones, nothing shifted better than the deore.
    Why would I care about 150g of bike weight, I just ate 400g of cookies while reading this?

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