1-1/4" solid steel receiver tube for Sport Rider "Y & Z" version bike racks. Includes 2" aluminum adapter and Snapper Pin . Total Length with 2" adapter installed 17" Total Length without adapter 16-1/2" 15" from the center of the hitch pin Can be used on: HR1450 HR1450-R HR1450-E HR1455-E HR1460 - came standard on this model HR1500 HR1560 - comes standard on this model * * PLEASE NOTE THIS RECEIVER TUBE REQUIRES A CLASS 2 HITCH * * A Class II hitch has a tongue weight rating of 350 lbs. and a towing rating of 3,500 lbs. Since the No Wobble System is not included with the 1-1/4 receiver tubes, we recommend purchasing a Hitch Tightener . You will also need to purchase a 1/2-13 TPI Threaded Hitch Pin