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Shengyi CMT03

The Shengyi CMT03 is an e-bike motor with a 250 W rating, up to 105 or 110 Nm of torque, a nominal 36 or 48 V, a weight of 3.5 kg, a 20"-29" wheel, a 250W motor and a 36V~48V rating.

Last updated: 2 November 2026

Motor and performance

Maximum torque
105/110

Row from the maker’s page: “Max Torque (N.m)” | “105/110”

Source: syimotor.com/products/cmt03-ebike-mid-motor.html

Continuous rated power
250

Row from the maker’s page: “Rated Power (W)” | “250”

Source: syimotor.com/products/cmt03-ebike-mid-motor.html

Reduction ratio
01:31.1

Row from the maker’s page: “Reduction Gear Ratio” | “01:31.1”

Source: syimotor.com/products/cmt03-ebike-mid-motor.html

Weight
3.5 kg

Row from the maker’s page: “Weight (kg)” | “3.5”

Source: syimotor.com/products/cmt03-ebike-mid-motor.html

Pedal sensing
Speed & Torque

Row from the maker’s page: “Pedal Sensor” | “Speed & Torque”

Source: syimotor.com/products/cmt03-ebike-mid-motor.html

Walk assist
Y

Row from the maker’s page: “Walk Assistance” | “Y”

Source: syimotor.com/products/cmt03-ebike-mid-motor.html

Motor position
Center Motor

“Center Motor CITY BIKE & MTB”

Source: syimotor.com/shengyi-motor-product-catalogue.pdf

Motor
250W

“36V~48V 250W 110N.m 1 : 3~3 : 1 25km/h”

Source: syimotor.com/shengyi-motor-product-catalogue.pdf

Torque
110N.m

“36V~48V 250W 110N.m 1 : 3~3 : 1 25km/h”

Source: syimotor.com/shengyi-motor-product-catalogue.pdf

Rated voltage
36/48

Row from the maker’s page: “Rated Voltage (DCV)” | “36/48”

Source: syimotor.com/products/cmt03-ebike-mid-motor.html

Battery and charging

Voltage and capacity
36V~48V

“36V~48V 250W 110N.m 1 : 3~3 : 1 25km/h”

Source: syimotor.com/shengyi-motor-product-catalogue.pdf

Brakes and safety

Water resistance, motor
IP65

Row from the maker’s page: “Tests” | “IP65”

Source: syimotor.com/products/cmt03-ebike-mid-motor.html

Frame and components

Colours
Black

Row from the maker’s page: “Color” | “Black”

Source: syimotor.com/products/cmt03-ebike-mid-motor.html

Bottom bracket shaft standard
Square Pyramid

Row from the maker’s page: “Shaft Standard” | “Square Pyramid”

Source: syimotor.com/products/cmt03-ebike-mid-motor.html

Wheel size
20"-29"

Row from the maker’s page: “Wheel Size (Inch)” | “20"-29"”

Source: syimotor.com/products/cmt03-ebike-mid-motor.html

Identity

Model code
CMT03E

Row from the maker’s page: “Model No.” | “CMT03E”

Source: syimotor.com/products/cmt03-ebike-mid-motor.html

Sources

  • Shengyi CMT03 250 Watt Electric Bike Mid Hub MotorArchived document

    Source: syimotor.com/products/cmt03-ebike-mid-motor.html

    Retrieved October 23, 2026

  • Archived document

    Source: syimotor.com/shengyi-motor-product-catalogue.pdf

    Retrieved October 9, 2026