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  1. #1
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    Noob question? (Crank length)

    I am a Noob to fixed gear cycling and was wondering if your crankarm length should be the same for you fixie as it is for your roadie?

  2. #2
    summer vacation since '85 stendhalian's Avatar
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    depending on your bottom bracket height you may get away with 1700mm's. but if you choose to ride a little more aggressively, like pedaling through tight corners try 165 mm cranks in order to avoid pedal strike.
    Quote Originally Posted by onetwentyeight
    i keep thinking its a cocaine lazy susan. just make a big spiral towards the center and see who OD's first.

  3. #3
    Foward Leaning Attitude rithem's Avatar
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    It all depends on the BB shell height and if it is a converted road frame or a track frame; even here clearance can vary. I run 170's on my track bike and have never come close to striking a pedal. If you have a conversion w/ semi horizontal drop outs the further back in the dropouts you position the axel the lower the BB shell height will become. Obviously a track frame is not subject to this problem. All I can say is measure, measure, measure and then measure. I don't like to be limited by my ride so screw riding conservatively because of mechanical limitations. I would def. recommend 165 for a conversion and would never hesitate to run 170 on a track frame. MTC.

  4. #4
    Al noisebeam's Avatar
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    I ride a conversion that has the BB center 29cm off the ground, so 170mm cranks work fine for me. The only time I can get pedal strike is if I turn hard and there is a wide gutter on the corner as well that drops the wheels lower. My other bike has 175mm and I am glad there is not a huge difference.

    Al

  5. #5
    Fear the banana YellowFixedGear's Avatar
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    Yea. I had 170mm cranks on my first fixed (conversion) Corners sucked. Stick with 165's

  6. #6
    bought a new car $0.00/Gal's Avatar
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    Doesn't matter if you're using Sugino RDs

  7. #7
    aka mattio queerpunk's Avatar
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    Quote Originally Posted by $0.00/Gal
    Doesn't matter if you're using Sugino RDs
    yeah it does. pedal strike is when your pedal hits. having a little extra nubbing on your crank ain't gonna make a diff.

    anyway to the OP. some people ride 170's, some people 165's. some people have high bottom brackets, some people, low.
    the hipster myth.

    i practice vagabondery.

  8. #8
    Senior Member eddiebrannan's Avatar
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    yeah cause it's the crank strike that'll kill you with those

  9. #9
    aka mattio queerpunk's Avatar
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    hey, you never know, especially on the 1700mm cranks that stendhalien mentioned.
    the hipster myth.

    i practice vagabondery.

  10. #10
    Senior Member morbot's Avatar
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    i use 170mm's on my conversion with MKS sylvan track pedals, i've never struck

  11. #11
    yo yo yo yo yo
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    i've got 170s on my conversion and i think about it every time i turn. hasnt happened yet though.

  12. #12
    likes avocadoes
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    heh, like that info would fit here...
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    I ride 172.5's on a converted road frame and take fast corners. Haven't struck yet in a couple years on this bike.

  13. #13
    Beausage is Beautiful Fugazi Dave's Avatar
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    I run 170s and have only had pedal strike once, and I was banking like a crazy person. The strike was almost heard more than felt.

    IOW, sort of depends on your specific circumstances.

  14. #14
    Hello. crushkilldstroy's Avatar
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    170's on 2 conversions. ride like a suicidal dumbass most of the time. haven't ever had a pedal strike.

    take that for what it's worth.
    Quote Originally Posted by Jacquie Phelan
    Until mountain biking came along, the bike scene was ruled by a small elite cadre of people who seemed allergic to enthusiasm.

  15. #15
    Senior Member Heraclitus's Avatar
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    Conversion w/ 170s = no pedal strike for me. Cranks are original to the 60cm Raleigh frame. I use eggbeater pedals, which have a pretty short profile. I haven't measured my bottom bracket height. I am tall and I like longer cranks.
    Nothing endures but change.

  16. #16
    Cornucopia of Awesomeness baxtefer's Avatar
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    175 on my conversion. only stuck a pedal once - turning while going down a steep ramp.

    get narrow pedals.
    {o,o**
    |)__)
    -"-"-

    O RLY?

  17. #17
    summer vacation since '85 stendhalian's Avatar
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    Quote Originally Posted by queerpunk
    hey, you never know, especially on the 1700mm cranks that stendhalien mentioned.
    hahahaha. damn it took awhile for people to notice...just picturing 1700mm cranks makes me laugh my ass off out loud and gives me little giggle fits.
    Quote Originally Posted by onetwentyeight
    i keep thinking its a cocaine lazy susan. just make a big spiral towards the center and see who OD's first.

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