I used to break several high traction arms until I stiffened my shocks a bit.. I was running my shocks too soft and bottoming out on landings too often. The high traction arms will snap pretty easy when this happens.. Try switching to higher tension springs with the same oil and see if the problem goes away.. I used Team Associated springs which had a better feel for the hard pack dirt tracks I race on..
Stiffening the springs actually helped my driving compared to the softer spring settings I was using before.
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Originally Posted by sim
Btw, I broke 3 out of 4 of the included high-traction arms that come with the DB-01R within about 5 practice sessions. Both rear arms broke on the same pack (as far as I can tell). Nothing crazy, normal track driving, with some bad landings here and there.
The TRF501X arms are much stronger, and the DB-01 arms are cheap, and strong but slightly flexible. The softer plastic doesn't hold screw threads as well, so I would recommend drilling in the shock mounting holes with a 2.5mm drill bit to extend the screw holes further. The outermost and innermost holes can go all the way through the other side. The middle hole can be deepened another 4mm so you can use a longer (15mm) screw.
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