![Speed Control (Front and Rear) - D4+ 3.0 (newer model)](http://www.xtremescooterspr.com/cdn/shop/products/d4-3.0-speed-control-front-2_{width}x.png?v=1618162872)
Front and Rear Speed controls for the Nanrobot D4+ 3.0 (newer) Model. Each sold separately. To determine if you need this part or a different model, check your wheels for "RoadRunner Scooter" engraved on the wheels. If there is an engravement, order this model. Please contact Xtreme Scooters for assistance.