[racingdwarf]

Like the 22, the 22-4 is quite bomb proof and to be honest it probably its best point.

The drive train on mine has been bullet proof,build and forget until you need a diff rebuild. I know some may have had problems but I think its just a case of how you build it first off.

Parts I have broken on mine are 2x front tower 1x rear tower 2x front wishbones mostly in heavy impacts big jumps and in one case colliding with a rolled car on a big jump section.

Also if you run the wide rear hex's on the back it does have a habit of shearing the nut and threaded part of drive shaft off if you land a jump on a slightly bad angle, annoying as they come in pairs and are not cheep

The big problem was the front hinge pins that shatter, but most replace them with shock shafts and that seem to solve the problem.

But if you are going to be running your car on mostly astroturf tracks and your a mortal club racer like me and many I know, I would give the 22-4 a wide birth as it's just hard work on high grip