Hiland Adult 27.5″ Aluminum Electric Mountain Bike 350W Motor Shimano 7-Speed Ebike is a perfect electric bike . the light and strong frame with the most professional accessories make it become the best “companion” for city streets . town roads . mountain roads and sandy terrains. Whether commuting . exercising or exploring the wild . this ebike is the best choice for you.Equipped with 27.5*2.10 inch tyres to ensure a smoother . stronger and faster ride. Equipped with a high-speed rear hub motor with 350W of power . it can reach a top speed of 20MPH and has an IPX6 waterproof rating. Meanwhile . the fully internal battery and triangular frame design protect the battery and make the frame more simple and smooth . providing a more stable and safe riding experience.