Dual Master Cylinder Hydraulic Handbrake Kit

A hydraulic handbrake acts directly on the rear calipers. It locks the axle without using cables, providing clean, repeatable locking - something the original cable can no longer do once the car gains weight or grip.

The master cylinder bore size is not a minor detail. The smaller it is, the faster pressure rises for the same lever effort, but the longer the stroke becomes. A 0.75" bore suits most standard rear calipers; a larger bore is reserved for calipers with large pistons.

Dual master cylinder setup: it completely separates the handbrake circuit from the pedal circuit. Safer in competition, but it requires independent bleeding.