http://app.strava.com/rides/13174880 Gravel roads on an MTB, 11.4 mph
http://app.strava.com/rides/7184193 Pavement and gravel racing on a 74 Paramount, 16.4 mph
http://app.strava.com/rides/14657915 Commuting on a Surley LHT, 16.3 mph
http://app.strava.com/rides/14188132 Racing an MTB, 10.2 mph
I track mostly for the miles, though there is certainly an element of competition with my friends as far as speed and climbs. It is all part of what makes riding fun for me. New bike, C&V bike, on road, off road, wrenching, restoring-it is all a part.