The Propella 7-Speed (V3.4) electric bicycle has puncture resistant tires, 4th generation battery, a compact charger and 7-speed Shimano derailleur with shifter. People like this ebike because it weighs 37 pounds, has a 40 mile range, 2.5 hour charge time, has 5 levels of pedal assist, onboard vehicle display, and a removable battery. We love the Propella’s anodized wheels which are also reflective and provide additional safety when riding at night. Built with premium components that you can find at just about any bike shop, the Propella 7-Speed was engineered to be easy to maintain for years to come.