The red rotor features a  moulded brass inlay that does away with the troublesome rivet used on most versions which is a known weak spot, this can allow the spark to short down to the centre shaft in distributor .

Improved insulation properties make the rotor ideal for use with high voltage ignition systems. 

The revised spring clip on the underside, in conjunction with better internal tolerances, assure a really snug fit, even on old mountings.