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• Please have a professional distributor authorized by Darfon Innovation perform routine
checkups on your bike.
• Check for signs of cracks, scratches or color change, since any of these are indications that the
part may be expired.
• Have a professional distributor authorized by Darfon Innovation replace the fatigued or worn
part(s).
Parts that may be compromised are:
• Handlebars and stem
• Saddle and seat post
• Frame and fork
• Tyres and wheels
• Pedals and Pedal cranks
• Brake Pads and discs
• Chain
• Battery
The electric bike and the power controller system may cease to function if handled incorrectly.
Modification to the power controller system may lead to the inability to correct the system back to
normal and eventually malfunction. A power controller system that does not work properly will
compromise your safety while riding the electric bike. Therefore, you should always go to a
professional distributor authorized by Darfon Innovation for service of used and malfunctioned
parts.
Do not perform any servicing or machining work on the bicycle frame or any of the load-bearing
parts on your own, such as drilling, welding or forging. These behaviors will impact the service life
of the parts and the stability of use. In addition, part of your body or clothing may be caught in
moving or rotating parts such as wheels, chain, pedals or pedal cranks. Make sure that any part of
your body, clothing or objects you are carrying will not be caught in these parts as they are moving
or rotating. Also, scarf is not recommended.
A few parts on this bicycle may become very hot after braking, such as the braking system, front
fork quick release, fast rotating electronic control system and the nut on the axle, particularly after
long hours of riding. Touch these parts only after they cool down. It is not allowed to ride the e-
bike without an operational lighting system. This is the law in many countries.
Qualified and Authorized Professional Service
A professional distributor that is qualified and authorized has the skills, tools and qualification to
provide service for your electric bike, in particular when it comes to the safety of riding the bike.
Therefore, it is advised to go to a qualified and authorized distributor for the following services:
• Safety-related service
• Maintenance and service
• Repair
• Correction, installation and upgrade
• Replacement of electronic components: power controller system, gear change system, brake
system and drive system
• Darfon Innovation recommends that you go to an authorized professional distributor for service
and repair in order to keep your electric bike in a good working condition.
Correct Use
Familiarize yourself with the following information before riding your electric bike:
• Safety notes given in the user's manual
• Technical data provided in the user's manual
• Traffic regulations and rules
• Legal and safety standards regarding electric bikes
The structure of the e-bike should comply with the regulations of your country when you bought
it. Or, it may be illegal in your country to ride this e-bike. The structure of this bicycle may be
adjusted to the regulations of individual country if necessary. Please read thoroughly the laws
and regulations applicable to e-bikes for the following key points:
• The power output of the motor and the maximum aided speed
• Accessories required to ride on highway
• Obligation to have a license
• The minimum age to ride an electric bike legally
• Requirement to wear a helmet while riding
The E-bike is designed for riding on the asphalt road and in an alley. It will not lose the grip when
you ride it on these roads. The E-bike shall not be used to jump over an obstacle, such as a tall
stone at the side of road. Also, it shall not be ridden by more than one persons nor manned. It
shall not be applied to any contest.
The gross weight of E-bike, including the weight of rider, accessories and luggage, is allowed 120
kg (264 lb). Do not exceed the allowable gross weight by carrying people or goods. BESV E-bike is
not allowed to operate as tractors. It is also not allowed to operate with a tractor or a traction
bike, nor to pull another bike with the connection system.
Please make sure the E-bike is used correctly as the purposes. Otherwise, it may damage the
components or cause unexpected risks or injuries of people.
The E-bike does not intend to limit the stature, perception, and mental ability of specific person.
However, a child under 14 years old is not suitable to ride the E-bike.
It is prohibited to carry the battery of E-bike on a passenger airplane, regardless of the design for
rear luggage carrier or portability. Before transporting the E-bike, please remove the battery, as
well as all components which can not be secured with screws, such as the instrument.
Electric Bike
The electric bike of Darfon Innovation is an electrically assisted bike that provides assistance
when you are pedaling. The rpm sensor located on the pedal crank bearing detects how hard you
are pedaling the bike and determines how much power the motor should provide to give you a
ride. The electric motor is turned off as soon as you stop pedaling. At the maximum aided speed,
the motor starts to reduce its power output until the aided pedals are turned off. For example,
the maximum aided speed is 25km/hr (15.5mph) in European countries. You may ride faster than
this maximum aided speed if you turn off the assisted pedaling function.
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