01

MANPOWER

The muscle strength first flows to the Pinion gearbox – not to the E-Motor. The use of force during shifting is determined by the driver – not by sensors. This is essential to shift gears sensitively without premature wear-out.

02

PINION GEARBOX

Inside a Pinion all gears are changeable when the bike stands still, or during a ride. The circuit remains free from any power assist from the E-motor and responds quickly and precisely.

03

E-MOTOR

The power flow runs from the rider through the circuit to the E-motor. Here, at the rear wheel, the translated padaling force is turned directly into drive power.

"FIRST THE TRANSMISSION SECOND THE E-MOTOR - THIS SYSTEM MAKES SENSE"

DANIEL O. FIKUART, CHEF EDITOR ELEKTRORAD

STRESS TEST

e-motor

 

 

 

 

A major disadvantage of modern e-bike systems with a mid-motor is that they subject the intricate transmission components to increased forces. Gearshift comfort and durability of the drive both suffer as a result. The force from the rider is first boosted by a mid-motor and then transmitted directly to the derailleur or hub transmission. These enormous forces encourage wear in the entire drive train and mean that gear shifts take place without haptic feedback. Premature maintenance intervals are the result.

 

THE RIGHT ORDER

e-motor

 

 

 

 

As a result, the ideal sequence is for the propulsive effort of the rider first to be transmitted through the central Pinion gearbox and only then boosted as required by an electric motor. This means the gearbox components are not exposed to additional forces, and every single gearshift remains “unfiltered” and has a consistent level of precision. This arrangement also retains the low wear on sprockets, the chain and toothed belt that is a typical feature of Pinion.