Yeah. It’s a motorised valve. When activated it should click and whirr and the lever should slide along.
It’s probably broken. They break.
If you are unlucky it will be the older type where you can't just swap out the head and it's a multi hundred quid plumber job...
@NickCJ started
London Fixed Gear and Single-Speed is a community of fixed gear and single-speed cyclists.
Yeah. It’s a motorised valve. When activated it should click and whirr and the lever should slide along.
It’s probably broken. They break.