Bing, Duneaddict and Scramblered are right. The redline for a stock zilla is around 7500. There is no rev limiter on them they just run to the top of the curve then the power flatens out the you shift!!!

 

a stock quadracer 500 is still the fastest quad ever made. 81 mph top speed as clocked by the staff of 3 and 4 wheel action in 1990. there is no stock banshee, raptor ds 650 or whatsoever new racing quads that can touch it. and i doubt there will ever be a quad like this again! 55hp at the crank and 379 pounds dry.and big bore two strokes don't like to rev. they don't need to!!! big bore 4 strokes revs to the moon cause they got to do so to produce decent amount of power. scramblered is right on the money with the numbers for the quadzilla peak power rpm and redline rpm. wich is slightly lower numbers than a cr 500 or a kx 500. a cr 500 produce 65 horsepower at 6800 rpm! this is very slow reving for such a powerful machine.