This BMW K100 , K75 YSS suspension replacement rear shock absorber from the Topline range, is a high efficiency gas shock absorber that can be adjusted according to the user. There are 3 main features to this shock: 1. It has a threaded preload adjuster which the user can turn in order to personalize their setting. 2. The shock is also rebound adjustable to control the recovery of the shockabsorber to it’s original position, fast or slow depending on the riders needs. 3. The shockabsorber is adjustable in length. There is also the option to fully customise the look and length of your BMW K100 , K75 shocks in a number of ways via our partner in Netherlands – YSS Suspension Store. Check out the options below: Note that each shock is custom built to your specification and takes about 10 business days to process.