Parents with older kids trying to learn to ride a bike don't buy a 20" huffy unless it already has training wheels on it, if not they save the nickel and make the axle to short to bolt training wheels on. This is my second attempt, this time I busted out the cutoff wheel, drill, and welder. I made some simple brackets and welded it together. No adjustment but it's 100% stable now, which he needs at this point. Once he's gained some confidence they'll be coming off.