4 Step 3 • Thread Seat Adjustment Handle (#29) into seat adjustment notch. • Place Seat Support (#5) onto top of Main Seat Frame (#4). Insert two M6 x 2 3/8” Allen Hollow Socket Bolts (#22), and two . 5/8” Washers (#24) on one side. Secure them with two M6 x .” Allen Bolts, two . 5/8” Washers (#24) on the other side. Step 4 • Insert Main Seat Frame (#4) into Front Bike Frame (#1). Attach a U-shaped Bracket (#20) from underneath. Align all the holes. Secure both sides with six M8 x .” Allen Bolts