The Rome Electric Bicycle User’s Guide
TPS Training Bulletin
Page 16
Technical Data
This section provides you with the technical specifications for your e-bike.
The Motor and Wheel Assembly
The Rome e-bike has a 500 Watt magnetic DC brushless motor on the rear wheel hub.
This type of motor has excellent low-end torque and high efficiency when working within its
range. Note that while the motor is very quiet, it does produce some noise. Also attached to
the rear hub are speed reduction gear and the speed free clutch.
The Freewheel
The wheels have freewheels, so the e-bike’s drive train is not fixedly geared. This means
that when coasting or traveling downhill, you can turn off the engine and your e-bike will
continue to move without slowing. This feature will allow you to achieve faster speeds
when coasting, moving downhill or moving with the wind. It will also allow you to conserve
electrical power, because you will be able to let to the motor rest while moving.
The Controller
Daymak pioneered the development of intelligent component control in e-bikes. The “D-
Drive” technology developed by Daymak is the brain of your e-bike. It allows your e-bike to
achieve faster acceleration, to climb steeper hills, and to save energy. In future, it will allow
for other ways of recharging your e-bike’s batteries, such as by using solar or wind power.
The electronic controller is located under the seat assembly. This controller efficiently
regulates the speed and electronic functions of the bicycle. It allows for stepless speed
adjustment, shuts off the motor when the brakes are activated, has low voltage protection
and has fuses to prevent excess current from damaging the e-bike’s systems.
The Governor
A key component of the controller is the Governor. The Governor regulates the speed of
the e-bike. It prevents the motor from assisting riders when the e-bike’s speed surpasses
32 km per hour.
Note
The governor’s primary function is to make sure that the motor functions efficiently. If
the governor is not functioning, the mileage of the e-bike will be dramatically reduced,
and its performance will suffer.
Disabling the governor voids the warranty, and may damage your controller.
This speed limitation to 32 km per hour is required by government regulations. Traveling
faster than 32 km per hour through motor power alone is illegal in Canada and could result
in serious fines or penalties, unless your vehicle is insured for liability, is registered and you
are licensed to drive.
