Does X-Class have twist throttle or thumb throttle? May 02, 2020 18:26 It has a thumb throttle. Related articles What's the max current the controller allows on X-class? Is there a lock on the battery on X-class? Can you move the handlebars up on X-class? Is there a walking mode? What is the weight limit on X-Class? Comments 0 comments Please sign in to leave a comment.