Features: Perfect fits for AXIAL SCX10II RC crawler. Steel frame guide with adjustable wheelbase. Injection molded nylon shaft housing, steel internal gear and drive shaft, the product is durable in use. Reduce the length, makes the RC crawler with a low center of gravity more stable. Strong steel chassis produces great balance between weight and strength. Compact structure, convenient assembly. Excellent texture, best reliability and hardened steel construction makes this product a best choice for you. Specification:Item Type: 313mm wheelbase chassis frameFrame Rail: SteelShaft Shell Material: Reinforced nylonTransmission and Shaft Material: Metal steelTransmission Material: Reinforced nylonDrive Shaft Material: Metal CVDShock Damper Material: MetalBumper Material: PlasticWheels Material: Approx. 120mm/4.7inch rubber tires and plastic rimsMotor: 55TShaft Gear Teeth: 38T / 15TWheelbase: Approx. 313mm/12.3inchLength: Approx. 435mm/17.1inchWidth: Approx. 226mm/8.9inchPackage List:1 x For AXIAL SCX10II Chassis Frame with Anti-rolling Car Shell Shelf 4 x Tire Note:1. Transmitter, receiver, esc, the servo steering gear, battery, charger, body casing are not included in the package. 2. Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.