Had mine done on my 2020 29MVP by a recommended shop that specializes in RVs. They have been great for 5,000 miles. They used a kit that included metal stems and brackets that attach the braided extensions to the wheels so they don’t flop.
Scott, Mary and Charlie (the chocolate Lab)
2020 Greyhawk 29MVP
2006 Chevy Silverado 2500 Crew Cab
2004 Sunnybrook 2709 TT (Sold)