Originally Posted by
mrardo
Reading a map while riding is worse than using a cell phone. I think a 500 has all that you need unless you are going cross country need the maps and will stop to look at them. The 305 has battery and shutdown problems and a bad mounting system.
You don't need to stay looking at the map.
You can pre-load the route and it will alert you (with a beep) when you need to turn.
You can also enter your destination, and it would find the best route to get there and alert you when to turn.
Last year, riding in unfamiliar territory, I was dropped twice during group rides. It was a life saver.