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Singlespeed & Fixed Gear "I still feel that variable gears are only for people over forty-five. Isn't it better to triumph by the strength of your muscles than by the artifice of a derailer? We are getting soft...As for me, give me a fixed gear!"-- Henri Desgrange (31 January 1865 - 16 August 1940)

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Old 03-18-06, 07:04 PM   #1
slopvehicle
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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?
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Old 03-18-06, 07:19 PM   #2
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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.
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Old 03-19-06, 10:33 AM   #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.
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Old 03-19-06, 07:52 PM   #4
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i rock 170s on my angus with no problems, but i don't really tackle corners like a badass.
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Old 03-19-06, 07:56 PM   #5
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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 ??
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Old 03-19-06, 08:08 PM   #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).
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Old 03-19-06, 08:18 PM   #7
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^^^ - Thanks !
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Old 03-19-06, 08:26 PM   #8
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no prob! where in vermont do you live?
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Old 03-19-06, 09:03 PM   #9
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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
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Old 03-19-06, 09:25 PM   #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...
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Old 03-19-06, 09:28 PM   #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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