This city case is compatible with BMW R series (monoshock, air-cooled) models equipped with S-shaped stays and K series (K75 to K1100) models equipped with resin stays. It has ample storage capacity for a two-night touring trip (personal opinion) and has been very useful. I found it while organizing my garage. Please consider it if you are interested. Two original keys are included. All locking and unlocking can be done with those two keys. I've added a watermark because I was harassed by resellers when I listed it before. Manufacturer...BMW