Your workstand is only as good as its clamping action, so it's a good thing that this spare Pro Mechanic Workstand Clamp Head is available, should the original that comes with your stand be damaged or lost.
The patented clamp offers both ratchet action and speed closure, so you can count on it to dependably stabilise bikes with a weight up to 34kg and a tube diameter of 6.6cm.
This replacement, in turn, comes fully assembled with all the parts that you'll need to reap its benefits, including the hinge pin, hinge pin fixing bolt, the clutch body, the clutch cup and that all-important rear tri knob.