Old post didn't want to start a new one. Got a Coospo from Amazon, works great for me. I had a odometer that worked with a magnet on the wheel spoke. Problem was taking the front wheel off on fat tire bike I had to let the air out of the tire. Now with the GPS computer don't have to do that. Also riding is simple, wait seconds for GPS to lock on and go. Nice statistics for the ride. Synch with CoospoRide app on my phone shows the map ride. Only cost around $60 with additional mount. Also hit another milestone 12,500 miles since April 2016.