Clutch slave cylinders are vital in the proper operation of a clutch. The master cylinder feeds the slave cylinder to exert the mechanical pressure to disengage the clutch.
Although the slave cylinder is a simple sounding process it can be complicated by a worn & leaking cylinder, causing the clutch to disengage when the pedal is down.
Commonly many people call wheel cylinders slave cylinders.
As with other cylinders over time the bore can become pitted or scored and CBC can resleeve and kit the slave cylinder to original specifications.