Moshay Adjustable Adult Bicycle Bike Stabilizers Training Wheels Fits 24" to 29" - Quality Heavy Duty

I used these on my autistic son's 29in specialized rockhopper. They were great! I tried three pairs of training wheels that would not work because they attached to the back wheel. These attach to the actual frame. He is a 9 year old, biking for the first time. These are very heavy duty and support him and the bike easily- I even went on it as an adult and these things are rock solid. Awesome find!

The U-bolts are a good concept for allowing adjustments, but the nuts do not thread properly. When they get slightly tight, they skip backwards a thread. The tolerance in the threads are too loose. This allows them to slowly skip threads and loosen the whole thing. I had to retighten every 10 minutes. They also have bolts to add counter-pressure on the frame, but the holes for these were not machined properly. I was able to get 3/4 in with a lot of effort. One won't go it at all. Honesty, I'd look elsewhere for something like this.

We have been looking for a way to teach our son how to ride a bike. He is very tall and blew past the training wheel bikes incredibly fast. We tried to teach him without training wheels and there was just fear of falling. We installed these and they make the adult mountain bike pretty stable. It gives our kids confidence. There is only really one main diagram for the direction but installation was simple enough. I did feel that it was easier to prop the attachment on my leg while sitting on the ground to install; there may have been a more suitable position, but this worked for us. I was able to use my hands to screw on the bolts. During use we noticed that the tires came very flat and need air, as well - depending on size of biker, their foot can hit the aforementioned bolts when pedaling. Considering the circumstance, these were a great option, but it is no perfect.

Works great!! We use it for my special needs kid. I would recommend !

No son para cualquiera bicicleta

Very cheap u-bolts. I’m going to try to source something better, shouldn’t be hard. Other than that seems very dependable.

Works good, very sturdy. I used it on an ebike so I had to modify it a little.

U bolts are trash. Tolerance in threads prevent tightening. Evident from other reviews it is well known and they don't intend to do anything about them.