Outside width: 140mm

It can be mounted with the mounting hole in front of the tubing if there are clearance issues or behind the tubing for a very clean installation

Surface: brushed

Knurled adjustment screws for easy setup

All Balls Racing - Air Cut off Valve Rebuild Kit (46-4041) K-Type-Open-Face Helmets Outside width: 140mmKit Includes all necessary parts to rebuild the air cut off valve circuit. Models with multiple carburetors include components to repair all carburetors. Kit includes necessary o rings, diaphragm, spring, screws. Improperly functioning air cut off valves can stick open or closed causing popping on deceleration or poor running conditions.