Fast 50s Inner Mag Rotor Kits
New CDI Magnet kit. Fits: xr50/crf50, z50, xr70/crf70 (w/ new style crankshafts)Works better in all stock or high performance motors because the motor can rev free with not as much weight on the crankshaft. This is a "Complete" ignition system, you take off your old stock unit and pop this baby on for some real revs. Is adjustable as well for more low end snap or top end revs. Works on any new style cdi 12 Volt motors.