Shock Absorber Type 644 WESA Dynamic Rear Lift/Lowering:Std The only difference is that

The only difference is that it omits the compression reservoir and thus the option to adjust high- and low-speed compression

enabling repairs or modifications even after many years

you get a much more compliant fork response and a big comfort gain with ample reserves for hard braking and fast riding

and rider safety

providing excellent cooling and consistent damping for the rider looking to step up there suspension without hurting the bank

Shock Absorber Type 644 WESA Dynamic Rear Lift/Lowering:Std The only difference is thatWESA Dynamic with manual compression fine tuning. BMWs Dynamic ESA adapts to conditions in real time. We go further by tailoring damping to your weight, load, and usage and, where equipped with an external reservoir, adding manual high low speed compression adjusters for additional fine tuning. Shock length can be specified to realize raise lower requests, resulting in a fully bespoke setup. See the menu below for the available raise lower options for