I used a V100 wireless for several years before I sold it with a bike to a friend. It finally died this Summer when it started shutting off and on intermittently. Still, it had to have at least 25,000 miles on it before it started acting up. The only problem that I ever had with it was it would be hard on batteries in the extreme cold (below freezing) and you couldn't park the bike near neon signs. Other than that, it was a great computer.