Ridstar Q20MIN. 【Long-Lasting Battery Life】 - 48V 15Ah capacity removable battery, the q20 min can travel up to 50 miles with pedal assist or up to 30 miles with electric power alone. 【Ideal for Daily Commuting】- The q20 min e-bike has 20" shock-absorbing pneumatic tires, front and rear suspension fork, 5-level LCD display, ergonomic sport seat, front and rear disc brakes, and ultra-bright LED headlight.