Originally Posted by
Seattle Forrest
That's exactly what I do. Sometimes it can have weird results. I was riding through a town on Route 2 and told it to navigate me to the next town on the highway, 6 miles away. It chose a 20+ mile route that avoided the highway completely, taking obscure back roads I didn't know were there. It was a pleasant ride, but longer than I'd had in mind.
My 800 has had OSMs on it for years, they've never been a problem.
Do with your phone or your GPS cycling computer? And what is OSM? On screen mapping?