I seem to go through rear wheel bearings -Have destroyed at least 2 at the last race meeting and have 4 that are very gritty

. I'm now trying aftermarket bearings with rubber seals on one side to see how it goes

.
Have also gone through a couple of front wheel bearings but they seem to stand up better.
Apart from bearings the only thing I broken is a front CF link. I feel the CAT is a pretty strong car considering I've been hacking the thing around and have had some very big stacks.
Compare this to my B4 - broken front and rear arms, rear chassis plate, bent drive shaft, wing mount etc etc. The only thing that seems stronger are the bearings compared to the CAT.