This engine case slider is suitable for the BMW S1000RR, BMW HP4 and BMW S1000R models and fits neatly and easily to the existing engine case without the need to drain fuilds and will provide additional protection in the event of a drop. Fits left hand side only (attaching to the bottom of the generator cover). R&G Racing engine case sliders compliment the R&G Racing crash protectors and the additional range of products that we offer for these bikes.