The vel t5 bottle cage is a light weight open style bottle cage weighing just 31g thanks to the t5 tempered 6061 aluminium construction this cage is both lightweight and durable therefore can be used on and off road this vel bottle cage is compatible with any bike with a standard seat or down tube mounting vel t5 bottle cage features 6061 t5 aluminium white painted finish with laser etched vel logos weight 31g includes shallow mounting bolts