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  1. #1
    a.k.a. MTBMaven
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    Middleburn BB Configurations

    How is/was your Middleburn configured?

    BB Type: Square Taper or ISIS
    BB Model: Manufacturer / Model
    Spider:
    Rings: Manufacturer / Teeth
    Report: Did you like the set up? Are you still? Running it? Why or why not?
    I thought of that while riding my bicycle. ~ Albert Einstein on the theory of relativity

  2. #2
    Kosher Princess
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    Good job!

    Quote Originally Posted by mtnfiend
    How is/was your Middleburn configured?
    BB Type: ISIS
    BB Model: SKF - BFR 600
    Rings: Middleburn Duo 42/29 Hardcoat Slickshift
    Length: 170mm
    Cassette: Ultegra 12-27
    Type of Riding: Hills, lots of hills with a touch of city thoroughfare.

    Quote Originally Posted by mtnfiend
    Report: Did you like the set up? Are you still? Running it? Why or why not?
    Yes! This is the best configuration for my area and style. Super comfy and smooth with flawless performance. The SKF BB is on the heavy/pricy side, but was it worth it? After nearly two years and 2000 miles, it's like the day I installed it. Never a worry! The same could be said about the cranks, simple perfection.

  3. #3
    mtbr member
    Reputation: Overkill's Avatar
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    BB Type: square taper 113mm
    BB Model: Phil wood
    Rings: 32T uno spiderless ring
    Length: 175mm
    Cassette: 17t boone ti cog

    Riding: I'm using this setup on a waltworks 26er HT. I live in an area with lots rock, roots and steep climbs (east). I've been using this setup for a full season without any issues. I used the setup in spring mud and all through the summer without any problems there either.

    The type of riding I do is mainly long endurance stuff.


    I've got the RS-8 arms and they feel plenty stiff for a pretty light weight setup. Note: My only comparison is the cranks on my other bike - race face next LPs (square).

  4. #4
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    Arms: 170mm RS7 in black
    BB Type: square taper
    BB Model: UN-73 in 113mm, 73mm shell
    Spider: Duo
    Rings: Middleburn 29-42
    Report: LOVE IT!!! So smooth, shifting is lightning quick, hard wearing paint, super hard wearing chainrings, super smooth bb that feels like it will last years rather than months like ISIS and external. I'm moving to a FS next season (RM Element 70) with a RF Deus crankset and am seriously considering spending the money to upgrade to an RS7 with a CD spider, 22-32-42 TA rings and a UN-73. The Duo will still see use on my hardtail on occasions where a light hardtail is preferable to a 3+ lb heavier FS with 3 chainrings.

  5. #5
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    Arms: 175mm RS7 in SIlver
    BB Type: square taper
    BB Model: UN-73 in 113mm, 68mm shell
    Spider: 4 Bolt Triple
    Rings: Middleburn 22-32-42, and 22, 32SS, 42SS (SlickShift doesn't do much)
    Report: Great Cranks you can really customize. I am adding another set of cranks to my new FS Hei Hei Supreme frame with a Phil Wood 113 BB.
    ... And I Am You,
    And What I See Is Me!

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