Twist throttles are so much better than thumb throttles it's unbelievable. Just make sure you match the model to your machine. Otherwise you'll end up with either too much or too little travel in the twist throttle.
Easy to install only took 1/2 hour. Only drawback is cable goes directly over front brake master cylinder had to tilt break assembly down just a bit but still rubs. Works great though and is much better to ride. 06 Yamaha raptor 350.