Edge 840 Solar

Garmin Edge 840 Solar: Control the positions of your friends who are riding with you with the GroupTrack feature and track up to 50 riders at a time.
Get the most suitable route for your outing by bike, in the mountains, on dirt tracks or on paved roads.
Your Edge finds the best route, choosing from the most used roads (and paths).
Select a race distance and time target, then get recommended daily workouts.
Ride with preloaded maps that include data on Trailforks MTB trails around the world.
Advanced cycling metrics provide detailed information on performance under changing conditions.
It detects metrics for Mountain Bike, each descent can be epic.The Grit evaluates the difficulty of a path, the Flow measures the uniformity of your ride in Bike, indications of turns with pronunciation of the names of the roads.
Always stay on the route with directions and notices of the turns with the relevant street names.
Go back to the route or back to the beginning if you are lost or want to be home early.
Keep the right charge during a Bike Ride with notifications that tell you when it’s time to hydrate or eat.