Left side wide recumbent wheel holder for tires up to 3" wide Comes stock on Recumbent Sport Rider hitch racks: HR1000R, HR1450R, HRT220, and is included with Trike Adapter 2 Wheel holder brace is 1.25 round tubing and is 11" long Extra wide wheel holders to keep the bikes 18” apart so there is plenty of clearance for recumbent style seats. These wheel holders sets will hold bicycles up to 50 lbs but, only if the rack being used is rated for 50 lb. bicycles. i.e. The Trail Rider rack will only hold bicycles up to 45 lbs. This product is for use with bicycles only. Do not use on motorized or electric bikes; mopeds; or motorcycles.