Remember a TKO 5 speed has pretty much the same gearing as a 4 speed except for 1st and of course 5th,I don't remember what first gear is but you better be shifting real quick and if it's a long distance between lights with a 4 speed the motor will max out and the 5 speed will just keep on going by.Everyone has their own choice the 5 speed just happens to be mine for all around fun