Assertion: caliper's piston | /r/CapableOf | keep the distance
Facets:
value: from the pad
type: LOCATION
value: to the disc
type: TRANSITIVE-OBJECT
Source sentences:
text: Many hydraulic disc brakes have a self-adjusting mechanism so as the brake pad wears, the pistons keep the distance from the pad to the disc consistent to maintain the same brake lever throw.