How important is the Ring Stopper?

[jrp]

What is this 'ring stopper' thing?
My bikes don't have this and I don't see it on the fiche.
or is it a 1300 thing?

 

[dwalby]

looks like something that was on the ABS2 bikes. My '97 non-ABS doesn't have it, and it doesn't show up on the fiche for the '97 non-ABS, just for the ABS calipers.

 

[mjc506]

The bike had the brakes bled but sat for over a decade since.

Flush the fluid. 10 year old brake fluid will be severely moisture contaminated even with 0 miles.

https://www.st-owners.com/forums/threads/st1300-maintenance-getting-all-the-air-out-of-the-brake-system.156754/ is an ST13 article, but applies pretty closely to the 11.

Worth flushing the clutch fluid too...

 

[RaYzerman]

The ring stopper is just a fibre o-ring that helps you get the pin in the last hole and maybe prevent vibration... if you lose them, no worries, I have a few bikes without them, never hear anything.