This is one of the most popular rides on the southeast side of Tucson with tons of ride variations to add mileage.
There is a good bike lane most of the way.
When turning right, if riding clockwise, on Pistol Hill Road from Old Spanish Trail there is a mile climb to get your heart pumping.
Once you get to the top Pistol Hill look west for a great view of Tucson.
You do do several variations from this ride to add distance.