BLUE WHEEL BXB-75, Owner'S Manual

Page: 218 / 282

218 E-Bike | BXB-75
SECTION 5
ELECTRIC BIKES
ELECTRIC BIKE COMPONENTS
MOTORS
MOTOR POWER
Electric bike motors are generally sifed by wattage and torque. Watts are a measurement of the capacity
of the motor to do work. A motor that is consuming more watts feels more powerful and usually reaches
higher speeds, but drains the battery faster. Torque is measured in Newton-meters and is a measurement
of the rotating force produced by the motor. This is most felt when starting from a standstill or climbing a
hill.
DOES IT CHARGE THE BATTERY WHEN I PEDAL?
Generally, no. Like electric cars, some electric bikes are able to push a small amount of power back into
the battery as the wheel spins. This is called regenera-tion. When a motor is regenerating power, its drag
increases signifcantly, slowing the bike down. For this reason, “regen” mode is usually triggered when the
rider depresses the bike’s brake lever.
Only direct drive hub motors can be used to regenerate power because they are always engaged (the coils
inside the motor are always moving). Geared hub motors freewheel (their coils remain sta-tionary when