Featuring a trail bike-inspired Alutech hardtail frame with a Zoom suspension fork, Shimano 6sp. group, and light 20 alloy wheels, the Relic 20 will put the youngest dirt riders on the fast track to big fun. While department stores will offer kids bikes of this size, do not confuse the difference in quality. An example of this is the rear derailleur hanger, on these Polygon bikes, they are made from a separate piece of Aluminum and in the event of a crash, are designed to bend and break if necessary. These hangers save the frame from being destroyed - on cheaper bikes, the hanger is part of the frame, and often made from steel. When these break, the rear gear mechanism cannot be repaired and the entire bike has to be thrown away. Don't make the mistake of buying cheap, these bikes are backed by a full warranty and designed by bicycle professionals. It features a 6 speed Shimano Tourney gear system, Zoom Bravo front suspension, front and rear mechanical disc