The 4Front® is a quiet, more responsive front-wheel drive power chair that features automotive-grade suspension with unprecedented comfort and ride quality. The 4Front's CASE (Caster Angle Sensor Encoder) technology and SRS (Smooth Ride Suspension) provide stability for smooth obstacle transitions and unmatched driving performance. The 4Front features standard speeds of up to 6 mph in the lowered position, and speeds up to 3.2 mph while elevated at 10" with our optional safe seat elevation. Standard LED fender lights allow you to see and be seen.