Muc-Off Big Bore Hyrid Tubeless Valve Stems - Medium 35mm Orange ModelNumber=H3868 but they are also lightweight

but they are also lightweight and highly breathable due to the jersey insert on the back

Reinforced underside X pattern gives extra stiffness

B-RAD 4 base instructions

or top tube fuel tank bosses

Muc-Off Big Bore Hyrid Tubeless Valve Stems - Medium 35mm Orange ModelNumber=H3868 but they are also lightweightBig Bore Hybrid Valves provide ease of fill and maintenance by eliminating the inner valve core Flow is controlled by an internal ball valve controlled by an intergrated external lever Ball valve allows for 245% more flow than a standard valve with inner core 4mm machined hex key slot on bottom allows for easy installation and removal Hybrid model comes with a Schrader style valve sized head 60mm model has suggested rim depth of less than 20mm, 65mm