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Discussion Starter · #1 ·
About 2 months ago one of the rod bearings on my 2021 M1000RR decided to let go which took out the rest of the motor. I got a new one installed recently and could notice immediately that; the part number is different (11008103148 new vs. 11008358795 old), idle is smoother, and off-idle throttle response is better.

Now the question is, does anyone know what BMW actually changed on the new motor? I've heard rumors of an extra oil ring being added to the pistons and some changes to the shift-cam, but nothing confirmed yet.
 
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