Ridgeback Avenida 21The Avenida 21 is Ridgeback's city bike with a wide range of gears, meaning you'll never struggle when the road turns upward. The 21 speed Shimano drivetrain is smooth and reliable, while also offering a range that keeps riders comfortable on steeper inclines, while also providing gearing options for flatter, faster sections of road. The open frame design makes taking a seat simple, removing the need to swing a leg over as you would have to with a