NSM-Series Crystalyte Motor

For Electric Folding Bike

The NSM-Series motor design for light weight folding bicycle.

Main idea in small dropout and light weight.

* Dropout 75mm /  Axle flat 8mm

In this way, the motor fit the famous folding bike  : Brompton Folding Bike.


General Information :

Motor Model NSM
36V Speed  25km/hr
Torque Nm 16.22
Weight 2.6kg
Wheel Laced Size 16" ~ 16" 1.3/8
Voltage Range 36V ~ 48V
Front Axle Dropout (mm ) 75mm
Front Axle Flat Part 8mm
Part No. NSM 209 F


* Nm = Newton meter

* Motor speed record base on 36V system with 16" wheel,  While motor hookup with 48V the speed will increase.

- Motor test base on 25A controller.  While controller's current increase the torque will increase too. Max. current 30A

  to hookup the NSM series motor.

- Standard motor color : RAL9007


NSM 209 Specs        Dimensional Diagrams for NSM Series


Green Brompton 16" 1.3/8 wheel fork :

Front wheel only Just fix Brompton fork Compare the motor size


Remark on NSM-Series motor :

-  Permanent magnet direct driver / gear less hub motor

-  High grade  NdFeB Magnets

-  Sheet type lamination with deep slot

-  High quality hall effect sensors

-  NSK sealed bearing

-  Cover with stainless Torx screw

-  Plug in hall effect hall effect and motor phase connector


NSM Laced with 16" 1.3/8 rim ( Brompton folding bike rim ) and standard 16" rim for folding bike.

-  Dia. 1.5mm2 motor phase wire

-  Spokes with G13 available

-  Motor wire length : 30cm

-  Anderson Power Pole connector for motor phase and small XRL connector for hall effect sensor


Motor with Brompton's fork

*  Motor specs may change without notice. Please contact us for confirmation.