Not exactly bicycle repair, but would you run this? 1 1/4 to 2 inch riser and extender hitch to a Thule bike rack with a 1 1/4 to a 2 inch adapter : r/bikewrench
Custom Dual Hitch extension bar for ( FOR FLAT TOWING ONLY) - Yakups® RV Kayak, Bike, & Boards Custom vertical rack www.Yakups.com