Muc-Off Big Bore Lite Tubeless Valve Stems - Large 45mm Black

Say goodbye to the hassle of traditional tubeless valves that clog up and require valve cores to be removed to fill sealant with sufficient air flow during set up. Big Bore Valves are engineered with precision and designed to deliver maximum air inflation simply and efficiently. Crafted from 7075 aircraft grade CNC machined aluminum construction with a stainless-steel ball valve this fully serviceable valve is built to withstand the toughest rides whatever the conditions. This patent-pending design sets a new standard in high air flow tubeless tire systems with a revolutionary ‘Straight through’ internal design for maximum airflow fire power allowing higher air volume per pump reduced sealant clogging and easier tubeless setup.

Big Bore Lite valves feature a standard Presta valve head design while offering up to 230% higher air flow than traditional Presta valves

Coreless ball valve construction and integrated lever allows you to quickly open and close the valve for effortless airflow control and even fine tune your pressure along the ride

Stainless steel ball valve with seals and O-rings

Serviceable design with spanner flats on the head lever and body

4-way tire insert air flow base is compatible with most tubeless inserts

4mm machined hex key slot for easy installation and removal

Supplied with various rubber bases to optimize fit and seal with multiple rim types

Length (mm)	45
Material	Aluminum
Valve	Presta Med 41-55mm
Defined Color	Black