Bike Training Wheels, Pair of Heavy Duty Rear with Stabilizers Mounted Kit for Kids Boy Girls Bikes of Single Speed Bicycle with 12 14 16 18 20 Inch

Wheels worked out great . They have not light up but I’m glad they don’t as I fear my granddaughter would be too busy looking at the flashing wheels and not paying attention to her riding skills .

durable and ended up even lighting up when in use

My son is a big 4 year old and got his new 20" bike for his birthday. The bike shop only had flimsy training wheels, so I ordered these because of the overwhelmingly positive reviews. The support arms seemed vastly better than anything else I had come across, and the wheels have little embedded LEDs that light up when spun quickly. They seemed great.Then when I mounted the support arms to the rear fork of the bike, the little clips that keep the training wheel arms in place weren't long enough, so they badly scratched the paint on fork of the (new) bicycle. I worked around that limitation and managed to effectively mount the training wheels, and my son was off to the races. He loved them for a total of about 3 hours, until he wiped out due to the wheel coming apart and falling off! Make no mistake, I followed the directions when assembling these things. The entire kit came with one of each, for each side: a nut, bolt, washer, and wheel. There was only one washer (which I thought was odd.) And the instructions said to put that one washer behind the arm, under the lock-nut, and not on the outside of the wheel hub under the bolt. After the wheel completely fell apart, I thought about putting it back together and putting a few additional washers on the outside of the wheel hub to keep it all in place, but the bearing cases were bent, everything inside was a hot mess. I had to hammer the bolt out of the wheel hub. And the other side was in bad enough shape that it too would be falling apart soon.I'm really sorry, but this is a classic example of a great design with superior mounting arms, and one component (the wheel hub) was so cheaply made that it makes the product worthless beyond a few uses. Honestly, it probably shouldn't be sold. I would absolutely not recommend this product. Returned to Amazon, and requested a refund, not a replacement.

They light up! Fit, but I had to find extra washers.

If you're looking to purchase these, be aware you'll have to buy the axle extensions that are advertised separately to "possibly" make them work "correctly". I don't like the extenders because they move the lever arm out significantly and could end up bending the axle.These are stamped steel and albeit fairly thick, they are stamped in the wrong direction. It's like the engineers who designed them have never looked at a bike and didn't realize the draw needs to face the opposite direction if they were to ever have a chance in hell of bolting up to ANY bike.I ended up flattening them in the press and cutting one down to fit on my child's bike. Granted they were cheap enough I didn't care, but wanted to make others aware before purchasing. Once they were modified they worked.

It’s not there fault the back bolt didn’t leave enough room for the install. Here is how I modified it to make it work. Gonna need a grinder some bolts Lock washers and washers. Angle metal at Home Depot. Good luck!

very nice fit on my kid bicycle, so good quality and easy fit

I purchased a different set of wheels previously and the first use they bent and down my kid went. Fast forward to finding these, they were easy to install, I used what was sent with the wheels. They really helped with stability and were the perfect length (he has 20inch wheels). Every time he rides he becomes more confident, I will probably move the wheels up as he becomes more confident until he can go without. He thinks the lights on the wheels are cool, I like that they are wide and substantial enough to prevent him from falling. Make sure you check the bike to verify they will work what with you have, the picture is very clear on what it works with and what it doesn’t. The brackets are thick and sturdy. I was very happy with the price point and very impressed with how quickly I was able to install and how quickly my child’s confidence in riding has returned. Highly recommend.