Ingenious and high quality - fantastic protection against foreign bodies in the oil circuit of your R1250/ R1200.
Made of aluminium, CNC turned (anodised) and with hexalobular internal to open it.

The cap is simply used instead of the original plastic part and can then only be opened with a TORX 50 key.
Thus it is difficult just to remove it but all the same a quick maintenance unit is no problem.