I have one of the original styles from my GL1200 days,8 inch wheels. I pulled it all over TX,OK,Ark. with no problem, and now pull it with the Trike, and I have loaded it down relatively heavy with both bikes, and no issues with the 8 inch wheels. Best Bang for the Buck. Ugly little beast but Highly Functional. I did add my own lock! the stock lock isn't worth messing with.