Transports 1-4 bicycles on an RV or camper trailer bumper with a max 140 lb. capacity

Designed for 4 to 4.5 square RV bumpers, installs with a 6.5 and 8 long bolts around the RV bumper

2 W Tire wells with 5.25 spacing between wells, 4 from bolt to first well; please note that tire wells will not fit standard mountain bike tires

Dual L-style support 19.5 H braces; bicycle straps/tie-downs sold separately)

Heavy duty steel construction with a black paint finish