Check out the price for a rear shock for my BMW cycle, granted there is only ONE rear shock, but still.........it is part #01 on this:

FOR VEHICLES WITH EQUIPMENT PACKAGE 2 (CODE: Q432A) OR EQUIPMENT PACKAGE 3 (CODE: Q433A) OR ESA CHASSIS (CODE: X416A) :
01 33 53 7 711 075 SPRING STRUT, REAR 12.52 1 $2580.61
FOR VEHICLES WITH ESA CHASSIS (CODE: X416A) :
02 46 53 7 685 496 NEEDLE BEARING - 17X24X25 0.09 2 $18.95
03 33 53 7 687 586 BUSH BEARING - 10X17X36 0.09 2 $21.22
33537687586 was superseded by 33537714397.
04 33 53 7 720 254 SHAFT SEAL - 17X24X4 4 $13.68
05 33 53 7 714 366 DEFLECTION LEVER 0.75 1 $167.00
This part has been improved by BMW for the K1300 line. It can be installed on the earlier K1200 bikes. Also has improved bushings where necessary.
06 33 53 7 660 381 ISA SCREW - M10X50 0.09 1 $13.36
07 33 53 7 659 821 DEFLECTION PLATE 0.18 2 $39.27
08 33 53 7 660 621 ISA SCREW - M10X65 0.11