BMW S1000RR / M1000RR Winglet install guide
You only need to recognize the two central positions : (1)edge line (2)half circle , shown in the picture below. Please keep that in mind.
Center the rear of the winglet to the center of the (2)half circle, and adjust the angle of the top to the (1)edge line. Then the front end will fit the end of the body.
It won't come off even if you attach it with the enclosed adhesive tape. However, if you want a more robust fitment, you can use the enclosed bolt. (Recommended for harsh driving conditions)
If you want to use tape, stick it as it is and you're done. If you are using a bolt, mark the hole position and drill the hole as shown below.