I know C-Bear does a BB that allows you to install 3D+ cranks without spacers, but I was wondering if there was a steel bearing option that utilizes a similar design. This is the C-Bear option for reference. I have a number of bikes running this configuration and bearing life seems to be less than optimal on all of them so I figured a design with less room for water and dirt ingress would be better.
https://www.c-bear.com/en/products/bott ... 30mm-rotor
Rotor 3D+ BB30 Shell Options
Moderator: robbosmans
This one is for PF30, so it might work. Try finding Rotor's compatibility charts to see if they make any specifically for the 3D+ with external cups. You might have to resort to spacers on a quick inspection of their website though .
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