The TB-04 PRO is an efficient shaft driven 4WD touring car chassis that gives excellent handling. Its layout places the battery pack longitudinally on the right with the motor horizontally in the left-rear for superior stability. The suspension utilizes short reversible suspension arms in conjunction with TRF short dampers mounted on carbon fiber stays. It uses a long steering tie-rod system refined on the TRF417 chassis, which provides optimized Ackerman steering for on-road racing. It utilizes hub carriers set to 6°, and front and rear gear differential units.