Saris MHS Duo 1-Bike Add-On Expand Bike Carrying Configurations With MHSNow that you have a Saris MHS Base, you can start adding your bike add-ons. The Saris MHS Duo 1-Bike Add-On easily attaches and detaches from the MHS Bases so you can carry one extra bike on your MHS rack. It has dual-arm bike holders that secure the bike with zero frame and zero fork contact. It is compatible with a wide variety of bikes and accommodates disc brakes, through axles, boost hubs, and full suspension bikes. Locks in the hook arm keep the bike secured to any MHS Base. This is designed to work with any MHS Base including the 1+1, 2+1, and 3+1 bases. Features Carries 1 bike up to 35 lbs Fits a wheelbase up to 53"Compatible with bike tires up to 5" and wheel sizes from 20" to 29"For use with the MHS Base including the 1+1, 2+1, and 3+1 bases Dual-arm bike holders secure the bike with no frame or fork contact Tray weight: 30 lbs Specifications Mounting Type Mounts to MHS Base Bicycle Capacity1Foldable Yes Lockable Yes Distance Between Bikes-Cradle Material Rubber Anti-Sway Attachments Yes Maximum Weight Capacity35 lbs | Saris | Mhs Duo 1-Bike Add On Add-On Double Arm Try, 50Lb Capacity | Rubber