An interesting product at an affordable price. The case is really rainproof, I use it as storage when the tomtom is not on the bike. I fixed on the handlebars (22mm) between the jumpers on my 650 Deauville 1998 fixing gene a little to turn the key on the Neiman. The case comes off with a leg that could have been larger, especially with gloves! My TomTom GO750 is well run, and I hear it, despite the different width of foam that hold the rear. There is even room to store the cord into the case after use. The passage of the cord below to switch the USB plug and the socket Tomtom, despite its width, is not overwritten. A good solution, an iPhone should also be embedded.