Quantum Rehab’s first front-wheel-drive power chair is the 4Front, featuring SRS (Smooth Ride Suspension). Designed to address real-world needs, 4Front focuses on ride quality, driveability and safety; its suspension is based on leading automotive suspension systems. SRS uses four coilover gas-charged shocks for an ultra-smooth ride. The geometry in which the shocks are integrated into the power base allows independent wheel travel plus power base stabilization. The result: up to 10″ of safe seat elevation while 4Front travels at 3.2 mph. 4Front delivers a smooth ride that lessens the bumps and jarring that can cause positional problems or increased tone and spasticity for complex rehab power chair users.