I'm not so sure that bb bearing death is attributable to loading one side more than the other - seems to my mind that uneven loads would get transferred relatively equally across such a short distance via such a stiff spindle. However, the chainring and drive side crank spider might to shield a certain amount of muck from direct ingress to the bb. Pure speculation on my part. I'm a caveman, not an engineer.
Jan. 26, 2022, 7:47 a.m. - Mike Ferrentino
I'm not so sure that bb bearing death is attributable to loading one side more than the other - seems to my mind that uneven loads would get transferred relatively equally across such a short distance via such a stiff spindle. However, the chainring and drive side crank spider might to shield a certain amount of muck from direct ingress to the bb. Pure speculation on my part. I'm a caveman, not an engineer.