An essential accessory that makes it easy to immobilize and start Flextreme vehicles! By activating the side lever, the central rail rises and will immobilize the car as it passes. It suffices to activate the lever again to go down the rail and let the vehicle starts again. , , The Flextreme pit stop can also be transformed into a bridge or tunnel thanks to its dual position feet. Finally, it is possible to use the stop module and the bridge-tunnel structure in two different places, i. e. 2 accessories in 1!