I believe its 11/43. I have the 1400kv in mine, but I run it on 6s geared 17/40. Its more then I need for the track and ended up with the punch at 3-4 on the tekin esc.
By the way, I've just sold my Hyper 9E. Not because I don't like it, but more because I just don't keep cars for that long. I did like the handling, though durability appeared to be an issue with it. Also, I kind of like home-grown conversions more, you can put your own personality into it. So now I'm building a D8!
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This has made a lot of people very angry and has been widely regarded as a bad move.