INJORA Steel Sealed Bearing Kit for TRX4M 1/18 RC Crawler Upgrade Parts, 22PCS

A must if you have a heavy rig and you don’t wanna look choppy

These are a game changer! Easy but lengthy install. If your truck is stock, I would personally upgrade diff gears and trans gears while everything is stripped down installing these. I thought the truck ran pretty smooth before, but now it is absolutely buttery! Only downfall, and it's very manageable, is that the brake hold is significantly reduced. But overall these are a NEEDED upgrade to the TRX4M.

Pretty good, nicely packaged and bearings are smooth. Wish they would label each baggy with the size of the bearings, but it's not a big deal. Just want to note that this WILL NOT eliminate torque twist on the TRX4M. Did not notice much difference at all after installing all the bearings. The mini crawler just sucks lol should not have to upgrade so much on it.

This improved the drivetrain smoothness 10x compared to stock brass bushings. I honestly didn't think these would make as much of a difference as they did, very smooth. I would assume this would just about double my battery life if the truck has been working this hard for over a year just to overcome bushing friction/resistance. This is probably the most cost-effective improvement you can make to your TRX-4M. Bearings fit perfect, and there was one for every single bushing on the truck.

Best first upgrade for any trx4m! My K10 high trail rolls smooth as butter now!

These bearings are a wonderful upgrade over the stock bushings. Every bearing slid into place easily and was easy to swap. From the second you hold the stock bushing and the INJORA bearings in your hands you'll feel the difference.

Great price! Does indeed take the slop out of the driveline (going from memory, didn't exactly measure it) and feels good to know the tiny little car is now loaded with rolly rollers :)A few observations, however:* The bearings that go in the gearbox have a VERY tight fit with the two axleshafts which support two of the three gears. Swapping from low gear range to high gear range with bushings is an absolute breeze. Doing it with these bearings makes the task much more frustrating and easily doubles the time required* Some of the bearings seem to be out of tolerance the other way, the ID is too large. If memory serves the front axle was the worst offender. Not terrible but concerning* This might just be a thing, but the oilite bushings seemed to spin free-er. With front axles fully assembled, spinning any of the three exposed shafts with my finger was more effortless with the bushings than after putting in the bearings.So, we'll see how they do once they're worn in a bit. Maybe they'll glide a little smoother.For less than a 1/3 the price of the Real Deal, they're a steal. I think they're off the shelf jellybean whatevers all packaged together nicely (and that they are, which makes the task all that much less intimidating)Easy, only slightly time consuming install. Just buy the bearings for your stupid little car and get it overwith already.

These bearings are a nice upgrade over the stock bushings.