The innovation in tubeless valve technology, the Tas Big Bore valve series. Designed and developed with precision, this patent-pending valve delivers maximum airflow simply and efficiently. It sets a standard and is the benchmark for high airflow in tubeless tyre systems with a revolutionary 'straight through' internal design for maximum airflow and performance. Equipped with a state of the art, integrated ball valve system, the valve enables lightning fast airflow and speeds up the sealant inflation process. Say goodbye to the hassle of traditional tubeless valves that clog and require the valve core to be removed to refill sealant and achieve sufficient airflow during tubeless setup. The Big Bore Hybrid offers up to 254% more airflow than traditional Presta valves because the bore is straight. Unrestricted airflow - 7075 aircraft grade aluminium - Pressure control on the go - Quick and easy set-up With the ball valve design and integrated lever, you can quickly open and close the valve for effortless airflow control and even fine-tune the pressure while riding. Manufactured from 7075 aircraft CNC machined aluminium with a stainless steel ball valve, this fully serviceable valve is built to withstand the toughest rides in all conditions.