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  1. #1
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    SLX/XT fitment and general questions

    So after doing a little reading its been made pretty clear the Shimano SLX or if I have a few extra bucks the XT brakes are the way to go. I know they are on sale at the moment at Blue Sky so ill be picking up a set soon. My questions is they have three different slx brake sets, what ones do I need? Whats the difference with the M666 and M675? Is Ice Tech the way to go and if so must i run IceTech rotors? I plan on going 180 rotors up front and 160 in the back, do i order the ones with the I.S adaptor or the post adaptor?

    My bike is a 2011(?) GF Cobia, i really like it but after two years i finally have the upgrade itch. It came with a pair of hydraulic brakes but they are some off name, Hornet. Im tired of how finicky they are and want something better, this just happens to be my first upgrade so a little guidance on fitment and such would be much appreciated!

  2. #2
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    Reputation: gmats's Avatar
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    Based on the discussion here:
    SLX brakes M666 vs 675 - caliper and pads difference

    The 675 are "re-part numbered" 2013 model of the 2012.

    If you already have rotors, no need to worry. If you need rotors, the IceTech's work, they're a bit heavy but they work great. I've been running my Ashima rotors for years now. They're cheap, relatively light and just plain work.

    Regarding which one to get? Measure the distance between the two caliper mounting bolts.

    51mm International Standard (IS) - Caliper is attached to the frame/fork with two bolts that are 51mm apart (center to center).

    74mm Post Mount - Caliper is attached to the frame/fork with two bolts that are 74mm apart (center to center). The bolts are screwed directly down into the frame/fork.


    Hope that helps a bit.

  3. #3
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    gmats,

    Thanks a bunch that is just what i needed!

  4. #4
    usually cranky
    Reputation: b-kul's Avatar
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    personally i would not throw down for new rotors unless you needed them. and ice tech is the cats pajamas.

  5. #5
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    So I can run ice tech with out getting the ice tech specific rotors? How does one know when you need new rotors...mine are 2 years old and are by promax (stock).

  6. #6
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    Reputation: husonfirst's Avatar
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    Ice-Tech refers to the technology used in the rotors. If you're not running Ice-Tech rotors, you're not running Ice-Tech.

  7. #7
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    Ice tech refers to pads and rotors. The ice tech pads are finned.

  8. #8
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    I bought XT's a few weeks ago and they were cheaper than SLX's for some reason. I got the newest version of the XT's and 180 mm ice tech rotors front and rear. They are way better than my Juicy 5's and give me true one-finger braking.

  9. #9
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    Check pricepoint.com, they have the slx and xt on sale for the same price.

    Sent from my SGH-M919 using Tapatalk 4 Beta

  10. #10
    Rub it............
    Reputation: frdfandc's Avatar
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    Yes, no difference in appearance or operation from the BR-666's to the BR-675's.

    I run a BR-666 front SLX system and a BR-675 rear SLX system.

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