ACF50 spray before during and after winter, on any connectors and switches, will really help stop corrosion. If you are into disconnecting plug and sockets, ACF50 grease, over the pins. Wash salt off as often as you can, and then a bit of spray, will keep corrosion at bay. WD40 is good but it tends to evaporate quickly, it is really a short time help. A can of dialectic spray grease, poked up into the bar switches will keep the working with smoother operation. Waxol on the frame welds and exposed nuts, applied with an old tooth brush, will keep them looking like new, it evaporates and leaves a wax coating that WD40 or white spirit will remove it if you want the Summer polished looks.