If you are a mountain biker and you are on Strava, connect it to Single Tracks .com.
You can find great trails to ride and some of the segments in each one. See photos, videos and reviews for thousand of trails. Get points and earn your way to directions and GPS files or subscribe to get them immediately.
You can share your own trails, list bike shops, post your own photos, videos and GPS files!
Find product reviews, MTB blogs, join the forum. They keep adding features all the time. Very cool site!
From the Settings page it looks like you can link Garmin Connect, Endomondo, Map My Ride and Runtastic as well.
Make a wish list for that next Mountain bike adventure.
List your bikes and gear.