Complete drive systems

from one single source

The Classic bicycle system has been successful in the electric mobility sector for decades. The drive’s key feature is its robust engineering, which makes the system almost fault and maintenance-free.
Thanks to its power and reliability, the Classic system is very well suited for use in wheelchair cars, e-bikes and cargo bikes. Powerful torques are achieved with the built-in gears, offering the rider maximum support, even when travelling uphill or with increased loads.

CAT Electric Drives Product Catalogue e tn

Proven system

High tensile force



  • System Overview
  • Motor
  • Controller
  • Battery
  • Sensors

Uebersicht Classic englisch

The RN 120 Classic motor provides support up to a maximum speed of 25 km/h and can be used as both a front and rear wheel drive. All mechanical parts in the motor are reliably protected by the completely enclosed and sealed housing. The powerful DC motor offers even power development with economical use of the battery capacity.


ICON VorderradeinbauFront wheel

The digital control unit receives input signals from a twist grip for selecting the support level and a cadence sensorthat ensures that the system only provides support when pedalling. The system is optimised and pre-programmed and also has a pushing assistance function up to 6 km/h, which does not require pedalling.


The powerful 36 V lithium ion battery is available in the capacity levels 324 Wh or 486 Wh and ensures optimum power development for the drive. The battery is conveniently housed in the pannier on the luggage carrier and is therefore protected from impacts and soiling.

With the charger supplied, the charging times are around 7 or 10 h respectively. The current charge level can be read directly on the battery at any time.

Twist grip and cadence sensorTwist grip and cadence sensor

The sensors required for the Classic system are a cadence system to identify if the rider is pedalling and a twist grip for selecting the support level.

The cadence sensor can be mounted on the right or left of the bottom bracket. On the twist grip there is an on/off switch and an LED display indicating the battery charge level.

Application areas

ICON E Bike freiE-Bikes & Cargo Bikes

Further Bicycle Drive Systems


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