9 in, Mounting Brackets Included No, Carrier Links Material Plastic, Crossbar Material Aluminum, Length 60 in, For Use With 2ATP1, Frame Stay Twist In Twist Out Alum Bar, Includes No Bracket Included, Loop Height 27.4 in, Loop Length 47 in, Number of Links 13, Style Open, Type Varitrak MC Nylon/Alum.8 in, Outside Width 15.8 in, Link to Link Pitch 4.