Overview Chat Bike Members News Women
Viewing 17 posts - 1 through 17 (of 17 total)
  • 170 or 175mm cranks? Why choose which? And how do you measure crank length?
  • psychle
    Free Member

    Just about to order my Hammerschmidt cranks from the States 😀 , but they come in 170mm or 175mm variants… Fairly sure all my cranks are 175mm (though how do you actually measure this? I assume from centre of the pedal bolt to the centre of the crank bolt?). Why would you choose one over the other? Any advantages to shorter cranks (it's only 5mm ffs, what can it really do?)

    cheers 8)

    Posted 14 years ago
    brakes
    Free Member

    it's only 5mm ffs

    exactly – I'd order 175 because it sounds better

    Posted 14 years ago
    psychle
    Free Member

    OK, just realised all my cranks are 175mm (they're helpfully marked as such on the inside of the arm 🙄 ) should I just stick with the same length? or is there a reason to consider 170mm cranks?

    Posted 14 years ago
    psychle
    Free Member

    exactly – I'd order 175 because it sounds better

    does it? as in 'mine is bigger than yours'? 😆

    Posted 14 years ago
    paulosoxo
    Free Member

    it's 10mm 🙂

    Posted 14 years ago
    psychle
    Free Member

    eh? how so? 175-170=5mm doesn't it? where's the extra 5mm come from?

    Posted 14 years ago
    brakes
    Free Member

    the other side

    Posted 14 years ago
    psychle
    Free Member

    ahhh… that makes sense… so does that 10mm make a difference? Who should go for 170mm cranks over 175mm?

    Posted 14 years ago
    psychle
    Free Member

    bugger it, I'm going with 170mm… should give me a teeny tiny reduced chance of pedal strike right? 😆

    Posted 14 years ago
    brakes
    Free Member

    and left

    Posted 14 years ago
    psychle
    Free Member

    ha ha… 🙄 😆

    Posted 14 years ago
    4ags4
    Free Member

    more leverage with the 175's, 170's – better if your short (and spin nicely)

    Posted 14 years ago
    psychle
    Free Member

    30" inseam… 5'8" tall. I've never had any issues (or even really thought about) my current 175mm cranks, I've ordered the 170mm Hammer's now, will just have to see if I can actually notice a difference 😆

    Posted 14 years ago
    theboatman
    Free Member

    I'm a little 'un and I've just swapped from 175mm to 170mm on my Soul(mainly on the grounds my road bike has 170mm cranks and it feels great), to be fair can't really tell the difference, but something totally unquantifiable in my brain is telling me they are 'nicer' 😯

    Posted 14 years ago
    simonfbarnes
    Free Member

    more leverage with the 175's

    it's equivalent to a small gear change, less than one tooth on the biggest rear sprocket…

    Posted 14 years ago
    MisterT
    Full Member

    always an interesting debate – read this what crank lengths?

    Posted 14 years ago
    jimmy
    Full Member

    but something totally unquantifiable in my brain is telling me they are 'nicer'

    I did the same in reverse because they ony had 175s. Something in my head is telling me my legs are doing a huge revolution now and I feel like I'm riding a clown's bike.

    Posted 14 years ago
Viewing 17 posts - 1 through 17 (of 17 total)

The topic ‘170 or 175mm cranks? Why choose which? And how do you measure crank length?’ is closed to new replies.

Overview Chat Bike Members News Women