Allen Sports XWay Aluminum 20 Speed Folding Bicycle, Stone, 12-Inch/One Size 6061 Aluminum Frame and top end components deliver a light folding bicycle (11 KG/24 LB) that is great for long distance treks or urban commutes 20 Speeds provides wide gear range designed for high speeds on flat terrain, climbing hills and everything in between 451 MM Wheels deliver improved performance and handling over the standard 20" or 16" found on most folding bicycles Patented frame release levers allow quick and easy folding of bicycle in less than 8 seconds Patented wheel lock system secures the bicycle when folded and allows the bicycle to be rolled like a cart