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-   -   Crank/BB out of balance (https://www.bikeforums.net/bicycle-mechanics/1137793-crank-bb-out-balance.html)

epnnf 03-08-18 03:29 PM

Crank/BB out of balance
 
. . . was time to replace the chain. With chain off, decided to spin the crankarms around several times- they settled at the same place each time- out of balance. Should I care? Ive seen on this forum that wheel imbalance is np. Using a cable tie, I even tied a flat washer at the high spot (temporarily), just to see if it would have any effect- not really. pls advise.

fietsbob 03-08-18 03:50 PM


Should I care?
there are a lot of individual's obsessions expressed in this forum..

you were OK with it before you took the chain off, riding, right?



:rolleyes:

Kontact 03-08-18 03:54 PM

Do you think it is actual balance, or just that your BB seals tend to have a hair more friction at one spot?


Either way, you shouldn't care.

epnnf 03-08-18 05:43 PM


Originally Posted by Kontact (Post 20212145)
Do you think it is actual balance, or just that your BB seals tend to have a hair more friction at one spot?

I dont think its friction- it settles in that spot

davidad 03-08-18 05:50 PM

Don't overthink this. It's not a problem unless you can feel friction.

cny-bikeman 03-08-18 07:00 PM

DO NOT worry about it.

dsbrantjr 03-08-18 07:01 PM

There is probably more imbalance in the weight of your legs than in the crank. Don't go check the balance of your tires; imbalance there is also imperceptable.

Iride01 03-09-18 10:23 AM

Do you spin a couple thousand RPM? If you do spin that fast, then have you checked to see that both feet, shoes and socks are the same mass?


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