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Peoples thoughts on this motor? SIA138-60 (NOT qs)

florida_jit679

🧲 New user
Joined
Apr 22, 2025
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3
Location
portland oregon
I have been researching different qs motors to put on my next minibike build, on paper this sounds good but I can't find a single documented build with it anywhere. From my understanding SIAECOSYS seems to QS what Toyota is to Lexus, is this assumption correct? my specifics would be 2 honda clarity modules in series for a total of 88.8v nominal, 200a continuous, 400a bursts, paired with a fardriver nd84450 or kelly equivalent. i have a generic 48v 2kw my1020 on my mx350 rn and its fun but no suspension is brutal so im trying to build a larger swingarm bike. also does anyone know how this compares to a kunray kr5v? theyre a similar price and on paper the kr5v is mostly better (higher kw rating, higher rpm rating, lighter) but it also makes a mere fraction of the 60nm of torque. Does ANYONE have ANY experience with this thing? Even asking the guys at QS I could barely get a phase amp max number from them.
 

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