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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 01-13-05, 01:24 PM   #1
dminefield
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max crank length

Hey I was wondering if 172.5 is too long a crank (in your opinion/experience) for a fixy...
seeing as how all of the newer Campy cranks pretty much only come in that odd size. (or 175)

peace
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Old 01-13-05, 01:31 PM   #2
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i would think 172.5's would work... definitely so on a frame with a higher bottom bracket, such as a track or criterium frame.
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Old 01-13-05, 03:02 PM   #3
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it will work...if youre riding style/pedal choice/regular routes dictate.
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Old 01-13-05, 03:08 PM   #4
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I run 175mm cranks on one of my fixed gear bikes. Pedal strike is a noin issue for me. This is on a touring frame with a low bb. Don't worry about it. You should be fine.
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Old 01-13-05, 05:12 PM   #5
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Agreed. Plenty of taller roadies use 180mm cranks (don't think Indurain ever went down from pedal strike), and Lennard Zinn offers cranks as long as 220mm. I think the only way it would be an issue on a fixed gear is if you're planning on riding at a velodrome.
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Old 01-13-05, 05:31 PM   #6
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I might differ with that opinion--I've had pedal strike on 170s when making quick maneuvers.

However, you just have to be careful. If you don't try anything too crazy at first, it probably won't be a problem, and you'll get a feel for how far you can lean without pedal strike. With me, it was never something that would cause me to wipe out. I just made some sparks and soiled my britches.
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Old 01-13-05, 06:06 PM   #7
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I run 175's on a low-ish BB'd touring frame. no problems so far. (aww crap I just jinxed myself)
just don't run huge mega-platform pedals and you should be fine. Take corners slow to begin with and slowly learn how far you can lean it over.
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Old 01-13-05, 06:07 PM   #8
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im building a fixe, i can't decide on a 165 or 167.2 crank ? 49cm rush frame. im 5'5" tall.
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Old 01-13-05, 06:20 PM   #9
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Quote:
Originally Posted by na975
im building a fixe, i can't decide on a 165 or 167.2 crank ? 49cm rush frame. im 5'5" tall.
I would say 165mm, because you are pretty small, and I don't see how 2.5mm would make a significant difference.
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Old 01-13-05, 06:25 PM   #10
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The only time I have ever had pedal strike is when I rode too close to the curb, and my right crankarm was actually over the curb, and when I was on the downstroke, The pedal hit the curb, ****ing up the bottom of the pedal, and putting me into a sort of pedal grind!
I rode it out. No biggie.
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