Avoiding the Highway I've got 2 routes to take, 10.5 miles and 11.5 miles. The latter of which gets me around the business district and avoids a large hill. How long should I have to leave ahead of time to make it to work on time and is not pushing the bike up the big hill worth an extra mile of biking? I have a 12 speed and half of the ride either way will allow me to use the higher gears.