TOURATECH STAINLESS STEEL RADIATOR PROTECTOR, SILVER, BMW R1250GS/ R1250GS ADVENTURE 037-5016. BMW is going to rely on water cooling in new boxer engines as well from 2013. Optically unobtrusive yet in the unmistakeable Touratech-style, the radiator protector made of laser cut, black powder coated stainless steel blends in with the GS design perfectly.