Are you looking for a great outdoor partner? This 24 inch mountain bike for boys girls and women will absolutely satisfy you. The 21 speed mountain bike features a sturdy aluminum frame with a performance suspension fork that soaks up bumps. The aluminum alloy frame makes the MTB bike lighter at the same time ensures great durability. The kids mountain bike has mechanical disc brakes . much more effective than V-brakes which allow precise and controlled braking. With the Shimano dual derailleurs . the gear shift of this boys girls bike is sensitive . so you can quickly change gears . and enjoy different speeds. 24 ?? 2.1 in. MTB tires can effectively reduce bumps . the widened anti-skid tires provide a strong grip are suitable for all grounds . and improve comfort. Stylish appearance . ride it and explore!