Ridgeback Avenida 6The Avenida 6 is Ridgeback's city bike with easy to use gearing perfect for flatter environments. The six speed Shimano drivetrain makes gear selection smooth and straightforward; simply select the desired gear using the right hand twist shifter and go. With only one front chainring there are no gearing complications, and it also allows for a fully enclosed chain case, offering the ultimate protection for legs and clothing from oil. The open frame