Twist vs Thumb Throttles
Over the years I have read many horror stories concerning the use of twist throttles on quads. With that in mind, I decided to offer some thoughts that would dispel the idea that twist throttles are meant for bikes only.
I have read many negative posts in various forums regarding twisters wherein the rider complains of inadvertant full throttle openings in rough terrain or landings off jumps.
I'd venture to say that in almost every case the problem lies in poor rider position rather than in the use of a twist throttle. The person is probably riding with his elbows hanging down below the bars ala Harley low rider style and seated back toward the rear of the seat. In this fashion, the throttle is almost certain to open automatically with any shock from rough terrain or hard landing.
Proper agressive riding position is to be seated in the "saddle", just where the seat dips behind the tank. Forearms should be elevated with elbows bent, and wrists should be bent to allow the knuckles to point forward intead of upward. With the arms, elbows, and wrists in this position, it's virtually impossible for the throttle to open accidentally; rather, the throttle would tend to close, if anything. Upper body should be bent slightly forward at the waist. This is called the "attack position" and permits the rider to be in control of the machine, rather than the other way around. The attack position is applicable to any type of quad or bike and with some practice becomes automatic as soon as the rider mounts.
It should be obvious that the seating position must of course, be altered for various circumstances such as cornering, uphills or downhills, standing, etc., but the arms & wrist positions should be the rule in nearly every case in order to maintain control & maximum leverage on the bars.
As for the degree of control with a thumb throttle, here's something to think about: the thumb, which is the strongest digit, is on the throttle button, 1st & 2nd fingers are on the brake lever, that leaves only the 3rd and little finger to control the bar. On the twister, of course, with the index and middle fingers on the brake lever, the thumb, 3rd & little finger control the bar.
Lastly, lest any reader get the idea that twisters are only useful on sport or performance quads,or bikes, I have had one on my KQ since day one as well as on my Raptor, and my Warrior before that.