HPI pinions are crap. Buy some of RCMikes hardened pinions.
Your truck is ballistic!!
EDIT: I see your are having some real pinions probs, sorry to hear that. RCM has been holding up great here (Flux XL, RC8Te and Hyper Mini STe). I'm moving to an MBX6Te soon (when Mike will ship the conversion kit that I ordered last week) so hopefully my pinions will hold on that new rig!
Mugen MBX6Te RCM + Mugen MBX6e RCM + Savage Flux XL FLM + MERV all with Spectrum DX3S || WTS&WTB
HPI pinions are crap. Buy some of RCMikes hardened pinions.
No ! The new RCM pinions (black) are crap :( worst than hpi, I shread them in 6-7 batteries on my MBX5T... And I know many other guys having this problem with RCM pinions. Other RCM parts are just great, but Mike need to change his pinion supplier !
Inferno VE MMv3 NEU-CC 1515/1Y 4S "Flying machine"