Does D-class have a twist throttle or thumb throttle? May 02, 2020 18:38 Twist throttle. Related articles What is the max weight limit for D-class? What happens if you stop producing this version of the D-class? Will I be able to find parts? What colors are available on D-class? How can I turn on the lights on D-class? Can I get the old platform footpegs on D-class? Comments 0 comments Please sign in to leave a comment.