New QS138 90H V3 4KW 7200rpm with 1:2.35 gear box Mid Drive Motor Kits with ND72680 Controller 350A 680A Line Communication for E-Motorcycle
For 138 4000W V3 motor powertrain kits, it could be used for electric motorcycle, which could be 72V120KPH.
e.g. E-Motorcycle
E-motorcycle weight, approx 180kg+1*70kg
Speed: peak 120km/h
Gear ratio: 1:2.46
Climbing slope: 20°@30kph@250kg
Tire: 100/70-19
P.S. If you have any confused about the shipping cost, please feel free to contact with us.
Also could place order but don't pay first, then we could adjust the price.
One set including below kits:
1. 1pcs X QS138 4000W V3 1:2.35 gear ratio Mid Drive Motor with 15T sprocket
2. 1pcs X ND72680 Controller with USB cable
3. 1pcs X DKD Speedometer
4. 1pcs X Z6 Throttle
Key Features
1). 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: 87~94%
Product Description
1. QS138 4kw V3 Mid Drive Motor
Spec
Drawing
Test Report
138 4kw V3+ND72680(gear ratio 2.368X2.46)
2. ND72680 Controller
Spec
Drawing
Harness definition
Debug Cable
Software Display(PC)
3. DKD LCD speedometer
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 QS138 3kw 12inch assembly).
·Wheel tire size: 130/70-12
·Pole Pairs: 5
·Gear Ratio: 1: 4.77
·Voltage: 72V (20s Lithium battery)
4. Z6 Throttle
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
Function
With Reverse, Parking button(throttle on/off), 3 slide switch gear, s/boost button, Light and Horn.
It match with VOTOL controller well.
Application