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  1. #1
    ass hatchet slopvehicle's Avatar
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    IRO bottom bracket height / crank selection

    I'm (once again) looking into buying a complete from IRO. I'll be going with a 53cm steel road frame-- probably the Mark V, but I won't rule the Angus out quite yet.

    Since the IRO has somewhat "relaxed" road geometry, should I expect the bottom bracket to be lower than that of a track bike? Should I get 165mm cranks or 170s?

  2. #2
    sushi: yum in my tum jitenshako's Avatar
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    The BB level is heightened. 170s are still fine as long as you're not tackling the corners like a badass. 165's if you want to shell out 200+ for track style cranks and chainring.

  3. #3
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    yeah, second that, I've had zero clearance issues on the mark v pro (knock on wood), in fact if anything the BB might even be higher than even some track bikes.

  4. #4
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    i rock 170s on my angus with no problems, but i don't really tackle corners like a badass.

  5. #5
    ♋ ☮♂ ☭ ☯ -=(8)=-'s Avatar
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    Quote Originally Posted by Phil B
    i rock 170s on my angus with no problems, but i don't really tackle corners like a badass.

    How about toe / front wheel overlap ??
    What size is the Angus frame ??
    -ADVOCACY-☜ Radical VC = Car people on bikes. Just say "NO"

  6. #6
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    haven't had any overlap problems either. my frame is a 59, and i ride with MKS gr-9s and the MKS steel toeclips (the extra large ones).

  7. #7
    ♋ ☮♂ ☭ ☯ -=(8)=-'s Avatar
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    ^^^ - Thanks !
    -ADVOCACY-☜ Radical VC = Car people on bikes. Just say "NO"

  8. #8
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    no prob! where in vermont do you live?

  9. #9
    ♋ ☮♂ ☭ ☯ -=(8)=-'s Avatar
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    ^^^ Im in the thriving metropolis of Proctor, about 6 miles
    outside of Rutland. Are you close by ??
    I think Im gonna pull the trigger on an Angus any day now thats
    why all the questions
    -ADVOCACY-☜ Radical VC = Car people on bikes. Just say "NO"

  10. #10
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    I have a 53 Mark V Pro. There is some very minor toe overlap with size L MKS toe clips on. So minor its more like toe brush than real overlap. When I had Mediums there was no overlap, but I also wasn't quite getting enough foot on the pedal...

  11. #11
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    not real close by, i'm in concord NH. i actually don't venture across the border into vermont very often. ha ha ha.

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