Zipp's Disc Valve Adapter is the perfect solution for inflating the tyres on your disc wheel. With a slimline design that features a synthetic elastomer gasket with twice the holding power of a regular gasket. It is also 5 times more durable. It easily fits into the valve cutout on disc wheels and allows for quick and easy inflation of your tyres ready hit the TT course! Includes 5 patches for covering valve cut out on Zipp 900 and Super 9 disc wheels.