The A525 front and rear suspensions use carbon fibre top and bottom wishbones with pushrod operated torsion bars. These are connected to damper units which are mounted inside the front of the monocoque for front suspension and inside the carbon suspension units at the rear. Aluminium uprights are complemented by BBS standard machined magnesium wheel rims and FIA standard wheel covers.
Carbon fibre discs and pads make up the A525 brakes. The Brake Callipers and Master cylinders connect to a fully integrated brake by wire system which connects to vehicle energy management systems.
The A525 cockpit features a removable drivers’ seat made of anatomically formed carbon composite specific to each driver, a six-point harness seat belt and the entire assembly can be ballasted up to 80kg. The bespoke steering wheel integrates gear shift paddles, clutch paddles, DRS controls and a driver display unit.
The A525 fuel system uses a Kevlar-reinforced and homologated rubber fuel cell which incorporates a scavenge to primer pump fuel supply system.
The A525 features an eight-speed, semi-automatic, cassette gearbox with reverse gear, a hydraulically operated “Quickshift” system maximising speed and consistency of gearshifts with a hydraulically controlled differential and a hydraulic supply for power unit actuation, the power steering systems, DRS and the clutch.
The A525 chassis is made of a moulded carbon fibre and an aluminium honeycomb composite monocoque. This is manufactured by BWT Alpine Formula One Team and designed for maximum strength and minimum weight. The Renault E-Tech RE25 Power Unit is installed into the car and is fully stress tested.