Description Carry Capacity 2 Bikes, 4 Bikes with Add-On Sold Separately Add-On only Compatible with Dedicated 2″ Hitch Size 2 Bikes, 4 Bikes with Add-On Sold Separately Add-On only Compatible with Dedicated 2″ Hitch Size 2 Bikes 1 Bike, 2 Bikes with Add-On Sold Separately 2 Bikes, 3 Bikes for the dedicated 2″ Version Add-On Compatible with 1 Bike Add-On Sold Separately 3 Bikes, 4 Bikes with Add-On Sold Separately Hitch Sizes 1.25″ Fits 2″ with D101 Adapter Sold Separately, or Dedicated 2″ Hitch Receiver 1.25″ Fits 2″ with D101 Adapter Sold Separately, or Dedicated 2″ Hitch Receiver 1.25″ Fits 2″ with D101 Adapter Sold Separately, or Dedicated 2″ Hitch Receiver Fits 1.25″ or 2″ Hitch Receiver Fits 1.25″ or 2″ Hitch Receiver Fits 2″ Hitch Receiver Rack Weight LBS 52 lbs 51 lbs 32 lbs 28 lbs 35 lbs 51 lbs Max Wheelbase Inches 50″ with tire scoops in the down position 50″ with tire scoops in the down position 47″ 50″ 50″ 50″ Max Bike Weight LBS 60 lbs/bike, or 40 lbs/Bike with Add-On Only Compatible with Dedicated 2″ Hitch Size Only 60 lbs/bike, or 40 lbs/Bike with Add-On Only Compatible with Dedicated 2″ Hitch Size Only 40 lbs/Bike 60 lbs/Bike, 40lbs/Bike with 1 Bike Add-On 40 lbs/Bike in Universal Hitch, Dedicated 2″ Version rated for 60lbs/Bike 40 lbs/Bike Max Tire Width Inches 5″ Kuat Phat Bike Kit needed for tires between 3″-5″ 5″ Kuat Phat Bike Kit needed for tires between 3″-5″ 3″ Kuat Phat Bike Kit needed for tires between 2.75″-3″ Holds tires up to 5″ with accessory strap previously 4.5″ better hook clearance for loading fat bikes Holds tires up to 5″ with accessory strap previously 4.5″ better hook clearance for loading fat bikes Holds tires up to 5″ with accessory strap previously 4.5″ better hook clearance for loading fat bikes Wheel Size Inches 20″-29″ Adapter needed for 20″-24″ wheels 20″-29″ Adapter needed for 20″-24″ wheels 20″-29″ Adapter needed for 20″-24″ wheels 18″-29″ 18″-29″ 18″-29″ Hand-Tight Cam System Hitch Connection Tamper-Resistant Security Tool Included Tamper-Resistant Security Tool Included Tamper-Resistant Security Tool Included Standard Locking Hitch Pin Included Hitch Pin Only Hitch Pin Only Hitch Pin Only Security Cables Integrated Into Rack Included Integrated Into Rack Included Semi Integrated Included Semi Integrated Included Semi Integrated Included Semi Integrated Included Tamper-resistant hitch security Holds up to a 50″ wheelbase bike Dedicated 2 hitch version in the 2 bike configuration can be directly mounted on campers, recreational vehicles, or trailers Holds wheels 18″-29″ Includes semi-integrated bicycle cable lock