HPI Savage 21/25/X CNC Aluminum Fuel Tank Protection HSA-021 by 3Racing  [HSA-021]

CNC aluminium tank defence

The HSA-021 aluminium fuel tank protection case is engineered to mount around the fuel tank area on HPI Savage 21, Savage 25 and Savage X chassis, providing a stiff CNC-style enclosure that reduces impact forces transmitted to the tank. The design targets repeatable fitment and resilience under aggressive driving.

Compatibility is restricted to the specified Savage variants; the component is an aftermarket protective assembly that does not alter fuel routing. It secures to existing chassis points to preserve layout and serviceability while adding structural protection to the tank zone.

Installation requires accurate alignment and the use of the vehicle's original attachment points. Perform a controlled trial assembly to confirm clearance to exhaust outlets and throttle linkages, then tighten fasteners to recommended torque for secure mounting.

Adding the aluminium case alters local stiffness and mass distribution. For competitive setups, assess ride height, shock damping and roll behaviour after fitment and make measured adjustments to retain predictable handling under load.