Bollinger's Class 4 B4 Chassis Cab is designed for custom configuration by fleets. Its unobstructed frame rails are meant to support easy mounting and upfitting, and the battery packs are protected with a quad-bend frame while still facilitating a strong turn circle. The battery pack itself offers up to 200 miles in range, and the chassis includes a 10,500-lb. GAWR rear axle and can accept an optional electric power take-off.