Optional wheel axles manufactured for XRAY by HUDY from the world-famous top-secret "Hudy Spring Steel(TM)". These are a direct replacement for the original duraluminum wheelaxles, and will be virtually impossible to damage or wear out. The wheelaxles are strategically CNC-machined so they are as light as possible to reduce rotating mass, while maintaining ultimate strength.
These optional Spring Steel Wheel Axles are used only in the rear on the original T1 and T1EVO2 cars.
On all other T1 cars, these optional Spring Steel Wheel Axles used in both front and rear.