2 Pcs 550 40000RPM Electric Motor High Speed RS550 12V Motor Drive Engine Accessories for Kids Electric Cars Children Ride On Car Replacement Parts

I hope this is a helpful review. I do a lot of research and review reading before buying a product. I'm also very handy in many trades...with that said, these motors are great! I noticed a lot of negative reviews that these motors blow up shortly after use, the backs of them are weak, and the gears are hard to get on the shaft. All these statements are true unless you know what you're doing. First, to put the gears on it, it has to be tight because they are round shafts and not flat on one side. They need to be super tight or the gear will strip off. If you have a vise and a small chunk of metal to put on the back side to go in between the connections so you don't crush them, you then can simply press the gear on without damage. It makes the gears go in easy and prevents the back of the motor to blow out. Now, the motor does spin 40k RPMS. depending on what gear you put on it and the gear ratio of the application you use it with will vary how fast you want to expect it to be. I put my motors in a powerwheel for my son. We blew the 6v motor. I put this motor in but also replaced the relay that was also 6v to 12v. From some reviews statements, they blow up right away. So I question if they did the proper modifications other then swapping out motors. My son's powerwheel is much faster then it was. My son has 4 powerwheels total. I plan to buy more of these when those motors go. It is convenient that these motors range from 6v-24v so I can swap them between all four machines if I had to. I did test the motor at 6,12,18,24v... These motors do run very nice and stay cool at 12v and 18v which is optimal range. At 24v the motor gets a little warm but I wouldn't hesitate running it for hours in a powerwheel.Overall these motors are a great bang for your buck.

Replaced the motors in our Gator XUV due to burning the stock ones out. Gator would only move one wheel on the high speed setting after burning the cheap stock motors out. These were perfect replacements, came with gears already installed on them, and were easily installed! They work great, we’ll see how long they last!

Had to make product fit but works well and is faster than before

I replaced my son’s stock motors on his 12v 4wheeler that are 12000rpm with these 40000rpm motors. These motors combined with a 24v battery the output was night and day. So my 4yr and I do a test so I jumped on my golf cart and the gps speed for his 4 wheeler was 9-10 mph vs stock 4.5. I definitely recommend these and also doing the 24v conversion it’s definitely worth it.

Once I got these installed on my daughters power wheel jeep the one motor only ran for 5 minutes and just quit working all together