Is the D-Class seat adjustable? July 15, 2020 17:57 aaIt is not adjustable however, you can sit back to find the optimal sitting position for yourself. Related articles Where is the controller of D-class located? Does D-class have a twist throttle or thumb throttle? What is the recommended tire pressure for D-class? What is the difference between Class 2 and Class 3 ebikes? Can I get the old platform footpegs on D-class? Comments 0 comments Please sign in to leave a comment.