Yeh traxxas wants it to last and the 42mm makes it fool proof.... You could probably go slightly larger and octura of course but I'm sure traxxas wanted something to work with all batteries... From 7 cell nimh packs along with 6s setups.... The mamba monster in my erevo has been overgeared and beat to death!!!! Comes back kickin.... Shows castle knows how to make some things for sure.... Does anyone k ow the amp rating of the esc in this boat yet?
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