New QS138 90H V3 4KW 7200rpm with 1:2.35 gear box Mid Drive Motor Kits with ND72680 Controller 350A 680A Line Communication

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