Like many of you, I didn't need locking replacement wheels. I wanted something higher quality than the stock wheels, but NOT larger diameter. Not a lot of choices out there. And by that I mean I've never found any until last week.Found a pair at Lowe's with hard rubber wheels: http://www.lowes.com/pd_66955-255-4384999NN_0__?productId=3037441&Ntt=waxman+2-in&pl=1¤tURL=%3FNtt%3Dwaxman%2B2-in&facetInfo=