Neons are essentially a hidden light post object positioned under your car, turn off your neons and you'll drive normally, this happens in other places with custom objects(like LS hangar) or attempting to jump a select few ramps around the map. https://www.gta-multiplayer.cz/en/videos/2-wheeled-ace/
https://www.gta-multiplayer.cz/en/videos/2-wheeled-ace/