If I run 175 cranks on my mtb should they be the same length on the road bike?

7 posts & 4 voices | Started 8 months ago by postierich | Latest reply from juan

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postierich - Member

Had a physio session last night and it came up about saddle heights and crank lengths been commuting for the last 3 months on a road bike bouht off here as a complete bike (did not even look at the crank lengths) and have been having a dead left leg(upper thigh,foot and lower calf) feeling when putting the power down the sypmtoms seem to suggest nerve damage in the lower back!

Will the 170 roadie cranks cause me problems

Posted 8 months ago #
RealMan - Member

Shorter cranks are better for higher cadences. Assuming you've got a higher cadence on the road bike then on the mtb, they should be fine. I've got different length cranks on all my bikes, I never notice much difference.

Posted 8 months ago #
thomthumb - Member

Will the 170 roadie cranks cause me problems

shorter than 'ideal' cranks don't normally cause issue. longer ones could.

how tall are you?

Posted 8 months ago #
postierich - Member

5ft 10 !

Posted 8 months ago #
thomthumb - Member

then 170, 172.5 and 175s should all be fine.

i'm 5'11" and run 170s & 175s.

saddle height could still be wrong though - and it will be different for different crank lengths.

Posted 8 months ago #
postierich - Member

Ok will stop shopping for a new set of cranks!! even though I need a triple.

Posted 8 months ago #
juan - Member

170...

Posted 8 months ago #

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