Attach Seat Handlebar Attach screws to secure seat handlebar to seat carriage using a T40 Torx socket wrench. Item Description Qty. 1 Seat Handlebar 1 2 SCREW: M8 X 1.25 6G6H X 20, BUT, TRX, CS,ST, ZB 4 3 WASHER, SEAT STOP 4 4 Seat Carriage 1 14.7 ft-lb / 20 Nm Parent topic: Assembly Procedure