Saris MHS 2-BIKE BASEFits 2'' receivers only Supports up to 3 MHS bike trays (with MHS add on). First two tray positions up to 100 lb capacity each (with MHS Duo tray). Add on position up to 35 lb. Capacity limited to 80 lb per bike when using in conjunction with MHS add on (not included) Hitch Tighter system to keep rack attached to your vehicle. Additional lock cores included for use with other MHS modules. Full tilting capability for rear of the vehicle access.