My experiment with the Tomtom Rider isn't going well. The GPS unit works pretty well, but the powered cradle is made of plastic so fragile and brittle that three of the five screw mounts have broken off from vibration, despite being rubber-mounted. There is also an ongoing issue whereby the cradle, even without the GPS unit attached, is interfering with the bike's CANBUS system, causing a power drain and audibly switching a relay on and off at one-minute intervals. At the moment, I'm getting around it by unplugging the cradle from the harness.