My 2 year old Garmin Edge 520 stopped working after about 60 bike rides. Garmin confirmed it was a hardware problem. Their solution was to sell me for $140U.S. a used rebuilt to replace mine. Terrible solution to a problem that should not have happened and should have been owned by them. The product was also difficult to use and took me a long time to get everything synced with my road bike. Stay away from Garmin and the junk they sell. There are better alternatives, many at a lower price. Terrible experience.