8// 1 Introduction
Why is riding with aneodrives rear motor more fun than
with other motors?
The motor is positioned directly on the rear wheel and develops power
right where it is needed. Any kind of power transmission, e.g. from the
crank to the chain or the pinion, reduces the actual torque and efficiency
and increases wear and tear. With the neodrives rear motor, the force
acts directly on the rear wheel. The chain, pinion and other parts are not
subjected to great strain, and there is anoticeable, direct response when
accelerating.
The maximum torque of 40Nm is always fully available to the rider,
regardless of the gear selection. In contrast, the 75Nm of amid-drive
motor are reduced by the gear ratio. On the rear wheel, the full torque is
only reached at agear ratio of 1:1 (very small gear). At the most commonly
used gear ratio of approx. 2:1 (middle or large chainring at the front, middle
pinion at the back), the torque is already halved, down to 37.5Nm.
Sensitive force sensor for supremely smooth response –
yo-yo eect practically eliminated
The force sensor is the interface between the pedelec rider and the drive
system. The more sensitive the sensor, the smoother the ride. With this in
mind, the force sensor has been taken to awhole new level compared to
the previous version (neodrives Z15). With its extremely high sensitivity
the sensor registers forces from as little as 0.5Nm, significantly reducing
the so-called “yo-yo effect”. As aresult, power delivery is both strong and
refined at the same time.
Unassisted riding noticeably improved
At speeds over 25km/h and when riding at assistance level 0, the motor
runs with considerably less effort than the previous version (neodrives
Z15). However, as with all e-bikes, there is still some residual resistance,
regardless of the position of the motor. Similar to adynamo hub, all electric
motors are subject to slight core losses.
Riding dynamics
1.2 Benefits of neodrives
No motor is as powerful, with equally smooth operation. Ideal for touring and trekking pedelecs,
women's and city pedelecs, cool urban pedelecs and cargo pedelecs.
