polisport polispgoudt urban radical fietshelm s 53 55cm triangles wit goudanjeThe Urban Radical is an urban bike helmet with a sleek design and full rear coverage. It's a versatile helmet and lighter than most city and BMX helmets, thanks to its injection moulded construction process, which also improves durability. With a wide range of durable matte colors, there's an option for every taste and preference. The unobtrusive shape is distinct yet minimal, ensuring maximum protection. Weight: 230g 0. 51 lb Dimensions: 53 55 cm 20.