I'll say it again, I've got 6,000 km on a Rotor 3D+ crank in a BSA shell with Di2- bit of grease, works fine.
The crank arm does not rub on the di2 cables? Mine did.
@skinny started
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I'll say it again, I've got 6,000 km on a Rotor 3D+ crank in a BSA shell with Di2- bit of grease, works fine.