Crank Lengths
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Doomanic



Joined: 26 Aug 2011
Posts: 546
Location: Evesham, Worcs

PostPosted: Wed Oct 26, 2016 10:15 am    Post subject: Crank Lengths Reply with quote

One of the things I have noticed with the Nuke is that I'm clouting the cranks on the floor when pedalling through bombholes and the like. The suspension is set up with 20% sag on the front and 30% on the rear. As I am swapping to a 1x chainset sooner or later I have to opportunity to use shorter cranks, either 170 or 165 instead of the 175s that are on the bike now. What are the implications of doing this?
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Threevok



Joined: 30 Jul 2012
Posts: 2137
Location: South Wales Valleys

PostPosted: Wed Oct 26, 2016 11:00 am    Post subject: Reply with quote

Not sure about 165, but I've run 170 and 175 and have found little to no difference between the two

I've not even had to alter the sea-post length to accommodate

These days I buy whatever size is cheapest/available at the time

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Attila



Joined: 15 May 2015
Posts: 417
Location: Forest of Dean

PostPosted: Thu Oct 27, 2016 2:48 pm    Post subject: Reply with quote

Bottom Bracket heights on modern bikes are getting lower and lower to keep your centre of gravity down making railing corners easier. The consequence of this is that it is a lot easier to smash a pedal or a crank arm on obstacles, you do get used to it quite quickly though and start timing your pedal strokes accordingly.

If you want to try a shorter crank by all means go for it but my advice would be to give it a bit of time before you spend your hard earned to see if you do get used to it.

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