Used primarily for drag racing to provide positive locking action to the front wheels of race cars, reducing the chance of ''Rolling the Lights'' and producing more effective burn outs for heating up the tires. Rigorous testing has proved a 1/100,000 of a second release time and vibration tests have seen up to 30 G's applied without mechanical failure. On the street or off-road, and as a temporary ''Hill Holder'', roll control (line lock) finds use when both the clutch and brake are needed at the same time. With the on/off button at the control of the driver's fingertip, release of the locked wheels is easy.

This product is also referred to as: Stage Control, Line Lock, Line Loc, Launch Control, Anti-Roll, Brake Control and Roll Stop.


Advanced quality design stainless steel valve assembly for ultimate corrosion resistance
Fully enclosed epoxy molded electrical coil for reliability
Attractive finned aluminum housing helps dissipate heat
Wider lightweight base provides better mounting stability
150-micron screen filtered ports to prevent contamination
Field serviceable for cleaning or rebuilding
Extra threaded port for separate bleeder or brake line pressure gauge
Kit includes solenoid valve, snap-action switch, indicator light, 4-amp fuse, mounting screws and installation instructions
12-volt negative ground systems only.