speedmd
10 MW
QS 165 looks like a good addition for bikes / light weight moto's.

Is it possible to buy a QS138 90H v3 with encoder SIN/COS?QSMOTOR said:Hello,
The QS165 mid drive motor has two versions:Encoder and Hall Sensor versions for your choosing. If you are interested in it,pls feel free to contact me.
Alan-alan@siaecosys.com
QS138 90H V3 mid drive motor now only hall sensor is available to order. No plan for encoder version yet.Fidel said:Is it possible to buy a QS138 90H v3 with encoder SIN/COS?QSMOTOR said:Hello,
The QS165 mid drive motor has two versions:Encoder and Hall Sensor versions for your choosing. If you are interested in it,pls feel free to contact me.
Alan-alan@siaecosys.com
QSMOTOR said:Hello,
The QS165 mid drive motor has two versions:Encoder and Hall Sensor versions for your choosing. If you are interested in it,pls feel free to contact me.
Alan-alan@siaecosys.com
There is a CNC made QS165 10KW with gear reduction box available now.Sample cost is 1600 USD. The mold has not been opened yet. Attached pls find the info. about QS1654 10KW 60H with gear reduction box for your ref.speedmd said:QSMOTOR said:Hello,
The QS165 mid drive motor has two versions:Encoder and Hall Sensor versions for your choosing. If you are interested in it,pls feel free to contact me.
Alan-alan@siaecosys.com
Thanks Alan. Nice form factor for a more narrow bike. Looks like a super efficient design at higher rpms and lighter loads. Good torque also at lower rpms. Any plans of a gear reduction model. Advise on shaft -sprocket options.
Thanks!Hello,
Here are the actual sample photos of QS165 10KW with gear box made by CNC.![]()
Hello, currently I don't have the photos of the gears inside. The gear ration of this 10KW QS165 with gearbox is 1:2.37. There are two gears inside as you said.Thanks!
Can you also share photos of the gears inside? Is this a double reduction? Because it looks like there are gears on the left and right side of the center axle of the motor...?
Hi, I found information about new model QS165 55H (12kW rated) on your facebook, it seems to be a prolonged version of QS165 35H. Is there more information available yet? Particularly drawings, weight and when the samples will be available?Hello,
Here are the actual sample photos of QS165 10KW with gear box made by CNC.![]()
Hello, it’s new model.Could you pls advise me your email address?Will share the motor info.later.Hi, I found information about new model QS165 55H (12kW rated) on your facebook, it seems to be a prolonged version of QS165 35H. Is there more information available yet? Particularly drawings, weight and when the samples will be available?
Hello, pls feel free to contact me through email or WhatsApp about the QS205 2000W V3 motor.Looking at your 2,000watt hub motor v3 3t 45mm because of the 50mm is to heavy for mtb project
.Has anybody gotten one. ?
I sent an email inquiry about this motor on Monday to alan@siaecosys.com but haven't heard back. Do I need to send it to Alan-alan@siaecosys.com ?New Arrival QSMOTOR QS138 90H V3 with 1:2.35 gear box 4000W Mid Drive Motor
View attachment 330397
View attachment 330398
428 15T sprocket
View attachment 330401
Product Description
View attachment 330399
Drawing
View attachment 330400
Online Price 439 USD/PC for QS138 90H 4KW Mid Drive Motor with 15T 428 Sprocket
Offline Price 412 USD/PC for QS138 90H 4KW Mid Drive Motor with 15T 428 Sprocket
If you are interested in it, pls feel free to contact me.
Alan-alan@siaecosys.com
Hello,my apology on the late reply. Sorry, I missed your email. Now I have found it. Will reply you soon.I sent an email inquiry about this motor on Monday to alan@siaecosys.com but haven't heard back. Do I need to send it to Alan-alan@siaecosys.com ?
Hello, the sprocket for the QS90 1KW motor is 428 14T sprokect. Is there no sprocket on the motor?Hello,
Bought a QS90 1KW but I can't find a sprocket compatible with a bicycle chain.
Can you please help me?
Thank you
I realized an issue with the gearbox plug and vent, when used in a left side chain drive motorcycle that puts the vent on the bottom and the magnetic drain plug on top. I thought I could switch them but when I unscrewed them I see they are different sizes and threads.QSMOTOR QS138 90H V3 with 1:2.35 gear box 4000W Mid Drive Motor
Hello, yes, the breather screw and the drain plug couldn't exchanged. The best mounting way is always keeping the drain plug at the lowest. Will forward your suggestion to our engineer. Hope we will consider your suggestion in next generation motor.I realized an issue with the gearbox plug and vent, when used in a left side chain drive motorcycle that puts the vent on the bottom and the magnetic drain plug on top. I thought I could switch them but when I unscrewed them I see they are different sizes and threads.
Breather is M10 x 1.0 and the magnetic drain plug is M12 x 1.5 It would make sense to change them to the same size and thread in future versions of this motor so they can be switched for different motor orientation.