
Well, my son is a bit behind physically, so we started cycling late. The store-bought training wheels were too flexible and buckled when he leaned to one side. Ultimately they failed, so we had to look for something stronger. I stumbled across them and tried them. First, I agree with other reviews that there should be instructions on how to build them. When I first got them I was very confused about how to get them to work. I think they don't provide enough equipment for their work. However after a trip to the hardware store FOR EXTRA PARTS I got these working and they work great! Check out the attached photos to see how I put it together and got it working. You'll need to buy a few more washers and a couple of lock washers to get the job done. Yes, the wheels will spin freely even if you tighten the nuts on the studs, but ONLY IF YOU MOUNT IT AS SHOWN IN THE APPLIED PHOTOS. gives it a 3 star rating. They work great but I had to go to a hardware store and spend more money to get them working.

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