170 OR 175

sgray100474
sgray100474 Posts: 117
edited September 2009 in MTB general
I have always used 170 cranks and tend to cycle with a higher cadence on lower gears, would changing to 175 cranks make any difference? I am 5'5 if that is a factor to be taken.

Comments

  • supersonic
    supersonic Posts: 82,708
    Shorter cranks are generally prefereed for higher cadence.

    My bet is you wouldn't be able to tell the difference.
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  • sgray100474
    sgray100474 Posts: 117
    Hmm, thanks Supersonic will have to think about it. After all these years I feel this will be one of my bigger changes. Anyone else got a view.
  • afcbian
    afcbian Posts: 424
    Have just changed my crankset from Truvativ with 170 length to Hollowtech ii with 175. I get the bike back tomorrow so will let you know.
    I didn't change it on purpose. I bought the 175 length by accident (doh!)
    I ride therefore I am
  • sgray100474
    sgray100474 Posts: 117
    Actually you are doing exactly what I am doing and have done just didnt want to install new one if it will be the wrong one.
  • heez29
    heez29 Posts: 612
    Lol im going the other way. However i found a website to calculate a perfect crank arm length for me. 6"1 came out 171mm
  • rottitera02
    rottitera02 Posts: 863
    heez29 wrote:
    Lol im going the other way. However i found a website to calculate a perfect crank arm length for me. 6"1 came out 171mm

    Do you have the site url so i can check for my crank length. ta
    2001 Cove Stiffee FR
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  • sgray100474
    sgray100474 Posts: 117
    Have a look at www.nettally.com/palmk/index.html
  • afcbian
    afcbian Posts: 424
    Got my bike back today and first impressions.........................didn't notice anything different.
    Am off on a killer in the morning with lots of climbs so will let you know how it feels
    I ride therefore I am
  • paul.skibum
    paul.skibum Posts: 4,068
    Yeah - that web link is BS - apparently I should have 158mm cranks and ride 175 with no noticed problem I dont think its science I think its more he has taken his crank arm length and divided it by his inside leg to get a constant that he is then applying to everyone.

    175/170 you wont notice the difference I cant see - I tried both in deore cranks with same chain rings and cant notice the difference ona short ride.
    Closet jockey wheel pimp whore.

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