CNC-machined from Swiss 7075 T6 aluminum, this X1 framework contains unique cutout spaces for increased flex. This chassis is preferred for and works extremely well on medium and high-traction songs; not recommended for very-high traction conditions, in which the #371016 Aluminum Chassis works better. This aluminum flex framework yields more traction and gives improved steering. Used successfully by Team XRAY at numerous events, this framework is a must have actually for each and every serious racer. 24mm narrower than previous framework variations, eliminating connection with the track in corners while rolling, and offering improved cornering rate. Includes a slot for a composite battery pack backstop that allows 5mm battery place modification with all the most frequently utilized cross-chassis alignment configuration. To be used with #371148 aluminum rear pod dish.