Hello guys. I'm thinking of buying a power meter on the left crank.
But the thing is, my cranks are 170mm, and I can only find 172.5mm, do you think it's okay if I use 172.5 on one side and 170 on the other?
Thanks.
Crank Size Difference Help
Re: Crank Size Difference Help
some folk won't notice the difference, but I think I would.
Probably best to get a 172.5mm crankset or to think about using a power measuring hub or pedals instead.
cheers
Probably best to get a 172.5mm crankset or to think about using a power measuring hub or pedals instead.
cheers
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~~~~~~~~~~~~~~~~~~~~~~Brucey~~~~~~~~~~~~~~~~~~~~~~~~
~~~~~~~~~~~~~~~~~~~~~~Brucey~~~~~~~~~~~~~~~~~~~~~~~~
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Re: Crank Size Difference Help
andr000ide wrote:Hello guys. I'm thinking of buying a power meter on the left crank.
But the thing is, my cranks are 170mm, and I can only find 172.5mm, do you think it's okay if I use 172.5 on one side and 170 on the other?
Thanks.
The question is - do you think it's ok? I personally wouldn't do it. Assuming you are interested enough in performance to want to be able to record and monitor your power output, I'd assume you'd be interested enough to have two matching cranks..
Re: Crank Size Difference Help
andr000ide wrote:Hello guys. I'm thinking of buying a power meter on the left crank.
But the thing is, my cranks are 170mm, and I can only find 172.5mm, do you think it's okay if I use 172.5 on one side and 170 on the other?
Thanks.
You'll definitely notice it for the first ride, not so much thereafter and probably not at all after half a dozen rides. If in doubt try putting a thicker insole in one shoe for a test ride. This only affects the vertical component of each revolution obviously.
Ride, Eat, Sleep. Repeat
Re: Crank Size Difference Help
I did a similar thing - 177.5mm nds power meter crank on a 175 ds crank. Didn't notice any difference, but I'm not normally sensitive to small changes and I think my left leg is fractionally longer anyway. My choice was purely financial - brand new, but unpopular size stages pm for £110.00. I think the pm will misread by a similar fraction, but my priority is consistency.
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