SiAECOSYS QSMOTOR 17X3.5inch 8000W V3 72V 120kph hub
Motor for electric motorcycle

For 17inch 8000W motor power train kits, it could be used for electric motorcycle,
which could be 72V 120KPH.
e.g. Electric Motorcycle
E-motorcycle weight, approx 150kg+2*80kg
Speed: peak 120km/h
Climbing slope: 15 degree@230kg
Tire: 150/70-17
One set including below kits
1. 1pcs X QSMOTOR 17X3.5inch 8000W 273 V3 Electric Motorcycle Hub Motor
Key Features
1). Simplify to make a electric-motorcycle. Gearbox, transmission shaft, clutch are noneed. Which save space.
2). It could be installed in the rear to save more space for battery.
3). Support regenerative braking
4). High efficiency: 85~92%
Product Description
1. QSMOTOR 17X3.5inch 8000W 273 V3 Electric Motorcycle Hub MotorYTK CO.,LTD.
Http://www.ytk-group.co.jp

Drawing

YTK CO.,LTD.
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Test ReportYTK CO.,LTD.
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YTK CO.,LTD.
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QSMOTOR 2000W Mid Drive Motor With ND72300
Controller And Kits For Electric Motorbike Dirtbike 70KPH
72V From SIAECOSYS
For 120 2000W mid drive motor kit assembly, it could be used for electric scooter.
e.g. CLICK electric scooter
E-scooter weight, approx 115kg+1*80kg
Speed: continuous 85km/h
Gear ratio: 1:4.77
Battery: 72V40Ah NCM lithium battery
Tire: 120/70-14

YTK CO.,LTD.
Http://www.ytk-group.co.jp

One set including below kits
Combo 1
1. 1pcs X QSMOTOR 2000W PMSM IPM mid drive motor with belt
2. 1pcs X ND72300 controller with USB Cable
3. 1pcs X DKD LCD speedometer4. 1pcs X Z6 throttle with combination switch

Combo.2
1. 1pcs X QSMOTOR 2000W PMSM IPM mid drive motor with 428 Sprocket Adapter
2. 1pcs X ND72300 controller with USB Cable
3. 1pcs X DKD LCD speedometer4. 1pcs X Z6 throttle with combination switch
YTK CO.,LTD.
Http://www.ytk-group.co.jp

Combo.3
1. 1pcs X QSMOTOR 2000W PMSM IPM mid drive motor with sprocket design 428 14T sprocket
2. 1pcs X ND72300 controller with USB Cable
3. 1pcs X DKD LCD speedometer4. 1pcs X Z6 throttle with combination switch

YTK CO.,LTD.
Http://www.ytk-group.co.jp

QS120 70H 2000W Mid Drive Motor
Key Features1).Simplify to make a electric-motorcycle. Gearbox, transmission shaft, clutch are no need, which save space.
2). It could be installed in the rear to save more space for battery.
3). Support regenerative braking
4). High efficiency: ≥88%
Product DescriptionYTK CO.,LTD.
Http://www.ytk-group.co.jp

Drawing

Test Report
QSMOTOR 120 2000W Mid Drive Motor with EM100-4sp Controller For reference onlyYTK CO.,LTD.
Http://www.ytk-group.co.jp

ND72300 sine wave motor controller
Key Features1). All the raw materials are imported, using high-performance Moss tube
2). With the aluminum substrate scheme, the Moss tube is laid on the aluminum substrate and then placed on the PCB
board3). Small in size4). High efficiency, low temperature rise, small running current5). With self-learning function, excellent commonality
6). The app compatible with Android and Apple7). With flux weakening function.(The product does not contain magnetism)
Product Description
ND72300 are sine wave controller with waterproofing grade IP67, suit for 3kw motors.
It’s hall version (as default) which suit with hall motors.
YTK CO.,LTD.
Http://www.ytk-group.co.jp

It could also support encoders, please check with sales.

DrawingYTK CO.,LTD.
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Harness DefinitionYTK CO.,LTD.
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Adapter Cable

USB Cable

Extend CordYTK CO.,LTD.
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Software interface（PC）

1. DKD LCD speedometer, can-bus(optional, LIN as default)

Key Features
Both CAN and LIN communication are supported

Product Description
DKD LCD speedometer, Adjustable
It display D N R, P, 1 2 3 S gear, and battery current X10.
For the speed, we recommend to set it as following as default (to match with QS120 2kw 12inch assembly).
·Wheel tire size: 130/70-12·Pole Pairs: 5
YTK CO.,LTD.
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·Gear Ratio: 1: 4.77
·Voltage: 72V (21s Lithium battery)

2. Z6 throttle with combination switch
Basic Parameters
Color: black
Rated operating voltage: DC+5V
Current: DC 10mA
Main material: ABS PVC
Right throttle pull force/ left handle pull pull force: ≥200N / ≥200N
Torsional strength: ≥ 9N.m
Output voltage: 0.8 ~ 4.2V
Service life: ≥100,000 times
Waterproof rating: IPX6
Number of core cable:5
Type of switch: half twist, with meter and key
Inner diameter of throttle: 22mm
FunctionWith Reverse, Parking button(throttle on/off), 3 slide switch gear, s/boost button, Light and Horn.
It match with VOTOL controller well.

ApplicationYTK CO.,LTD.
Http://www.ytk-group.co.jp

YTK CO.,LTD.
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QSMOTOR QS180 90H 8000W 72V 110KPH Mid Drive Motor For Offroad Dirtbike
Adult Electric Motorcycle

One Set Including Below Kits
Combo 1
1pc X 180 8KW Mid Dirve motor

YTK CO.,LTD.
Http://www.ytk-group.co.jp

Combo 2
1pc X 180 8KW Mid Dirve motor
1pc X 520 13T sprocket

Key Features
1) Light weight and small dimension compare to hub motor
2) High performance benefit from flux weakening
3) High efficiency during climbing, and better acceleration4) Support regenerative braking
Product DescriptionYTK CO.,LTD.
Http://www.ytk-group.co.jp

Test Report

Conversion KitsYTK CO.,LTD.
Http://www.ytk-group.co.jp

QSMOTOR New QS273 12000W 17*6.0inch V4 72V 150kph High Speed
BLDC Hub Motor with ND721200 Controller Kits for Electric Motorcycle
For 17inch 12000W motor power train kits,
it could be used for electric motorcycle, which could be 72V 150KPH.
e.g. Electric Motorcycle
E-motorcycle weight, approx 200kg+90kg
Speed: peak 150km/h
Climbing slope: 15 degree@70kph@1km@290kg
Tire: 190/50-17

One set including below kits
Combo1.
1. 1pcs X QS273 12000W 17*6.0inch V4 BLDC Hub Motor
2. 1pcs X ND721200 Controller
3. 1pcs X Bluetooth for ND721200
4. 1pcs X DKD LCD speedometer5. 1pcs X YY V3 Throttle with Combination Switch

Combo2.
1. 1pcs X QS273 12000W 17*6.0inch V4 BLDC Hub Motor
2. 1pcs X ND721200 Controller
3. 1pcs X Bluetooth for ND721200
4. 1pcs X DKD LCD speedometer5. 1pcs X YY V3 Throttle with Combination Switch
6. 1pcs X Vehicle wiring harness for Fardriver(with 1pcs 4p 72V 40A relay, 1pcs flasher, 1pcs 72V
to 12V 10A DC converter, 1pcs Electric Lock Ignition)

Combo3.
1. 1pcs X QS273 12000W 17*6.0inch V4 BLDC Hub Motor
2. 1pcs X ND721200 Controller
3. 1pcs X Programmable for ND721200
4. 1pcs X DKD LCD speedometer5. 1pcs X YY V3 Throttle with Combination Switch

Combo4.
1. 1pcs X QS273 12000W 17*6.0inch V4 BLDC Hub Motor
2. 1pcs X ND721200 Controller
3. 1pcs X Programmable for ND721200
4. 1pcs X DKD LCD speedometerYTK CO.,LTD.
Http://www.ytk-group.co.jp

5. 1pcs X YY V3 Throttle with Combination Switch
6. 1pcs X Vehicle wiring harness for Fardriver(with 1pcs 4p 72V 40A relay, 1pcs flasher, 1pcs 72V
to 12V 10A DC converter, 1pcs Electric Lock Ignition)

Key Features
1). Simplify to make a electric-scooter. Gearbox, transmission shaft, clutch are no need. Whichsave space.
2). It could be installed in the rear to save more space for battery.
3). Support regenerative braking
4). High efficiency: 85~92%

Product Description
1. QS273 12000W 17*6.0inch 70H V4 BLDC Hub MotorYTK CO.,LTD.
Http://www.ytk-group.co.jp

Drawing

Test Report (Only for reference)YTK CO.,LTD.
Http://www.ytk-group.co.jp

2. ND721200 Controller
Generally Spec:

Drawing

Adapter CableYTK CO.,LTD.
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3.1 USB Cable

Extend CordYTK CO.,LTD.
Http://www.ytk-group.co.jp

Software interface（PC）

3.2 Bluetooth Adapter

Software interface（APP）

YTK CO.,LTD.
Http://www.ytk-group.co.jp

4.DKD LCD speedometer (can-busoptional, LIN as default)
It display D N R, P, S gear, and battery current X5/10.
P.s.: If the working battery doesn't have can-bus communication, then the can-bus speedometer
will shows lack of electricity always.
So, we suggest to do the speedometer as Line communication version if client can't get can-bus
battery.

DrawingYTK CO.,LTD.
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Cable schematics

5.YY V3 Throttle with combination switch
Color: black
Rated operating voltage: DC+5V
Current: DC 10mA
Main material: ABS PVC
Right throttle pull force/ left handle pull pull force: ≥200N / ≥200N

YTK CO.,LTD.
Http://www.ytk-group.co.jp

Torsional strength: ≥ 9N.m
Output voltage: 0.8 ~ 4.2V
Service life: ≥100,000 times
Waterproof rating: IP55
Number of core cable:5
Type of switch: full twist
Net weight:0.5kg
Inner diameter of throttle: 22mm
PS. We offer female connectors for samples (less than 10pcs).
It matched with Fardriver controller well.

7. Vehicle Wiring

YTK CO.,LTD.
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YTK CO.,LTD.
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Programmable Software & User manual (Before you received the controller)
Pls. Contact with sales to get the link and password to download the manuals and software
before/when you got the controllers.

YTK CO.,LTD.
Http://www.ytk-group.co.jp

New QS138 90H V3 With 1:2.35 Gear Box 4KW 7.5KW Mid Drive Motor QSMOTOR
From SIAECOSYS
Notes:NEW ARRIVAL 138 4KW mid drive motor spline shaft as sprocket type. nostock, if interest, please contact seller.
P.S. If you have any confused about the shipping cost, please feel free to contact wit
h us.
Also could place order but don't pay first, then we could adjust the price

One set including below kits:
1pc 138 90H V3 mid drive motor with 1:2.35 gear box
1pc 428 15T sprocket

YTK CO.,LTD.
Http://www.ytk-group.co.jp

Product Description

Photo ShowYTK CO.,LTD.
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YTK CO.,LTD.
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Drawing

Test ReportYTK CO.,LTD.
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Only for reference（due to the limitation of test machine，the maximum torque is notreached.）YTK CO.,LTD.
Http://www.ytk-group.co.jp

New QSMOTOR QS165 35H 5000W V2 72V 100KPH IPM PMSM Mid Drive Motor
For Offroad Dirtbike Lightbike Adult Electric Motorcycle

Key Features
1) Light weight and small dimension compare to hub motor
2) High performance benefit from flux weakening
3) High efficiency during climbing, and better acceleration4) Support regenerative braking
Product DescriptionYTK CO.,LTD.
Http://www.ytk-group.co.jp

Drawing

YTK CO.,LTD.
Http://www.ytk-group.co.jp

Test Report
Test with ND72680 , DC Current 200A max , Phase current 660A max

YTK CO.,LTD.
Http://www.ytk-group.co.jp

ApplicationYTK CO.,LTD.
Http://www.ytk-group.co.jp

QS90 1000W 72V 55KPH Mid Drive Motor Kits with EM50-4 Controller Belt/ 428
Sprocket Adapter Type For Electric Scooter SIAECOSYS
For 90 1000W mid drive motor, it could be used for electric scooter, electricmotorcycle.
It could be 72V 55KPH, available for 10inch wheel kits.
QS can provide customized 428 sprocket adapter to match with 1kW mid drive
motor.

One set including below kits
Combo 1
1. 1pcs X QSMOTOR 1000W PMSM mid drive motor belt
2. 1pcs X Votol EM50-4 sine wave motor controller with CAN-BUS

YTK CO.,LTD.
Http://www.ytk-group.co.jp

Combo 2
1. 1pcs X QSMOTOR 1000W PMSM mid drive motor with 428 sprocket adapter
2. 1pcs X Votol EM50-4 sine wave motor controller with CAN-BUS

YTK CO.,LTD.
Http://www.ytk-group.co.jp

Key Features
1) Light weight and small dimension compare to hub motor
2) High performance benefit from flux weakening
3) High efficiency during climbing, and better acceleration4) Support regenerative braking
Product Description
1. QSMOTOR 1000W 90 80H Mid Drive Motor
Item: QS Motor 1000W 90 80H Mid Drive Motor
Motor Type: PMSM Permanent Magnet Inner Rotor Motor With Hall Sensor
Brand: QS Motor, QSMOTOR
Motor Design: Single axle
Matched Wheel: 10inch Wheel (as default)
Magnet Height: 80mm, 5 pole pairs
Diameter of stator: 120mm
Rated Power: 1000W
Rated Voltage: 72V(as default)
Speed: 60V@45KPH; 72V@55KPH
Max Torque: approx 25.2N.m without Reduction ratio, approx 134.0N.m with 1:5.3
Reduction ratio
Max Efficiency: 90.5%
Thermal Probe: None as default (KTY83/122 is available, if you need, please let sales
man know).
Single Hall Plate with waterproof connectors
6mm² Cross Section of Phase Wire (not include insulation layer)
Hall Sensor Phasing angle: 120 degree
Waterproof Grade: IP54
Color: Black
N.W./G.W.: 7.8kgs/9.1kgs
Package Dimension: 34cm*34cm*33cm
There are two options.
Belt type：428 sprocket adapter type:YTK CO.,LTD.
Http://www.ytk-group.co.jp

Drawing

Test Report
For reference onlyYTK CO.,LTD.
Http://www.ytk-group.co.jp

2. EM50-4 sine wave motor controller with CAN BUS
Key Features1).The materials are imported.
2). With the aluminum substrate scheme, the Moss tube is laid on the aluminum
substrate and then placed on the PCB board
3). Small in size4). High efficiency, low temperature rise, small running current5). With flux weakening function
Product Description
EM50-4 is new motor controller. It’s cost effective with waterproofing grade IP65,
suit for 2000W motors.

YTK CO.,LTD.
Http://www.ytk-group.co.jp

Drawing

YTK CO.,LTD.
Http://www.ytk-group.co.jp

Controller Interface Definition

Software interface（PC）

YTK CO.,LTD.
Http://www.ytk-group.co.jp

Adapter Cable

Please noted:
Optional appearance, drawing, performance curve/test report are available.
If you need more technical information, please feel free to contact us.
We will give you reply in 12hours.
ApplicationYTK CO.,LTD.
Http://www.ytk-group.co.jp

New QS138 90H V3 With 1:2.35 Gear Box 4KW 7.5KW Mid Drive Motor QSMOTOR
From SIAECOSYS

One set including below kits:
1pc 138 90H V3 mid drive motor with 1:2.35 gear box
1pc 428 15T sprocket

YTK CO.,LTD.
Http://www.ytk-group.co.jp

Photo ShowYTK CO.,LTD.
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YTK CO.,LTD.
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YTK CO.,LTD.
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NEW Released SIAECOSYS/QSMOTOR Liquid Cooled 138 V3 4000W 90H Mid Drive
Motor with Gearbox and Better Temperature ResistanceFor 138 4000W liquid cooled mid drive motor , it could be used for electric lightmotorcycle, which could be 72V 110KPH.
One set including below kits
1pc X QS 138 4kW V3Liquid Cooled Mid drive motor with gearbox and belt design

Key Features
1) Light weight and small dimension compare to hub motor
2) High performance benefit from flux weakening
3) High efficiency during climbing, and better acceleration4) Support regenerative braking
5) Water Cooler, which would have better temp resistance.

YTK CO.,LTD.
Http://www.ytk-group.co.jp

Product DescriptionYTK CO.,LTD.
Http://www.ytk-group.co.jp

Drawing

Test ReportYTK CO.,LTD.
Http://www.ytk-group.co.jp

Accessories

Conversion KitsYTK CO.,LTD.
Http://www.ytk-group.co.jp

ApplicationYTK CO.,LTD.
Http://www.ytk-group.co.jp

QS Motor E-spoke 3000W 205 50H V3 Hub Motor 60-70kph
It's QS electric In-Wheel Bicycle Spoke Hub Motor for Conversion Kits, which power
range from 1000w to 3000w rated, drop-outs 150mm with bicyle disc brake.
4T= 48V 560RPM/72V 820RPMBalance Version( Defaul Winding）
5T= 48V 460RPM/72V 650RPMHigher Torque Version
Notice: Now 205 3000W V3 spoke hub motor all upgrade to V3TI Version ,better
cable and add phase cable protector

1. Generally SPEC

PS. 1. Above quotation base on 205 electric bike spoke hub motor.
2. For 205 motor, the voltage is 48V~96V.
3. Above configuration is suggested for mass production,
for EV enthusiast, V2 & V3 motor could be over-voltaged to gain more speed(customizable).

YTK CO.,LTD.
Http://www.ytk-group.co.jp

4.There are more powerful e-bike standard hub motor, 3000W & 4000W 273 Spoke
Hub Motor, 152mm dropout, PDC6*44mm, 12mm axle flats.
Test ReportYTK CO.,LTD.
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YTK CO.,LTD.
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3. 205 E-Spoke Hub Motor 150mm drop-outs drawing
Here is drawing of our normal 205 e-spoke hub motor with PCD 6*44mm disc brake.

YTK CO.,LTD.
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QS 1kW 90 new appearance mid drive motor assemble kits with 10inch rim and
EM50SP Controller
For 90 1000W mid drive motor kit assembly, it could be used for electric scooter,electric motorcycle.
It could be 72V 50KPH, avaiable for 10inch wheel kits as default

Key Features
1). Simplify to make a electric-motorcycle. Gearbox, transmission shaft, clutch are noneed. Which save space.
2). It could be installed in the rear to save more space for battery.
3). Support regenerative braking
4). High efficiency: 85~92%

YTK CO.,LTD.
Http://www.ytk-group.co.jp

The kits include as below:
1pcs QS 1000W Mid Drive Motor with Left/Right fork
1pcs EM50SP Controller, 72V 190A, SINUSOIDAL WAVE BLDC MOTORCONTROLER(Optional)
1pcs Rear synchronous belt wheel
2pcs Decoration cover1pcs Rear axle with screws
2pcs Adapter
1pcs Synchronous belt
1pcs 10inch Aluminmun wheel
1pcs Fender
1pcs Belt shield
1pcs Belt side shield
Product description
Genearlly Spec:YTK CO.,LTD.
Http://www.ytk-group.co.jp

Dimension Drawing:
QS 1kW 90 mid drive motor(old appearance)

QS 1kW 90 mid drive motor assemble kits(Old appearance)

YTK CO.,LTD.
Http://www.ytk-group.co.jp

Please noted:
Optional appearance, drawing, performance curve/test report are available.
If you need more technical information, please feel free to contact us.
Controller Description:
Item: EM50SP sine wave controller
Net weight: 955g
Rated current: 60A
Boost current: 190
Max. Power: 4320W
Flux Weaking Ratio: 100~250%
Max. Efficiency: 88~93%
Degree of protection: IP67YTK CO.,LTD.
Http://www.ytk-group.co.jp

Conversion kits for QS 2kW mid dirve hub motor
We're able to supply Controller, display, dc-dc converter, disc brake system, twist
throttle, matched tire...etc.

Application for E-Motorcycle mid drive motor

YTK CO.,LTD.
Http://www.ytk-group.co.jp

YTK CO.,LTD.
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SiAECOSYS QS120 60H 2000W V3 72V Mid Drive Motor with Gearboxfor Electric
Motorcycle and Bike
For QS120 60H 2000W mid drive motor , it could be used for electric light motorcycle,
which could be 72V 60KPH.
One set including below kits
1.1pcs X QS120 60H 2000W V3 72V Mid Drive Motor with Gearbox

Key Features
1) Light weight and small dimension compare to hub motor
2) High performance benefit from flux weakening
3) High efficiency during climbing, and better acceleration4) Support regenerative braking

YTK CO.,LTD.
Http://www.ytk-group.co.jp

Drawing

YTK CO.,LTD.
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Test Report
TBD
Motor Kit with Controller
Recommend Controller：Siaecosys Programmable VOTOL EM100sp Controller

ApplicationYTK CO.,LTD.
Http://www.ytk-group.co.jp