Amazon.com : VELOWAVE Electric Mountain Bike Adults 500W 27.5'' Ebike 25MPH E Bike 48V 15Ah Larger Battery Removable Shimano 7-Speed Dark Green : Sports & Outdoors
Amazon.com : PASELEC Electric Mountain Bikes for Adults 27.5'' Electric Bicycle, 48 v 500W Ebike with13ah Hidden Lithium Battery,Professional 7-Speed Gears (Blk-Orange) : Sports & Outdoors