12V 40000RPM Powered Wheels Motor Upgrade Gearbox Electric Motor 2 Pcs 12v RS550 High Speed Drive Engine Gearbox Motor Upgrade for Jeep Ride On

these are excellent motors I put them on my sons small bar wheels atv. And attached a 20 volt dewalt drill battery and it flies. I had so much fun with these I spent hours trying to put them on different things and was successful in most cases these are highly recommended. also recommended is to get some large rubber bands to put over the wheels of the writing toy that you upgrade because they have so much torque that your child will just be doing a burnout Also probably get a helmet.

I put these on an old Power Wheels I've had for a few years so it took a bit of fabrication to get them to fit since pretty much everything was different. Freewheeling these motors turn way faster than stock, and when I got everything hooked up, they're quite a bit faster even with a load. There is a noticeable difference in torque though. Going uphill it moves slower than downhill, on very slight grades. That may have been true with the old motors but it was so slow you couldn't really tell. It does take a little bit to get to top speed now (like a few seconds instead of pretty much instantly) but when it's there, it's pretty fast. No more casual walk to keep up.