ATS Rear Motor System


HESC stands for Human Electro Synergy Components and perfectly illustrates the combination of human strength and electro-mechanical support.

Based on the Active Torque Sensor System (ATS), it makes locomotion with a bike efficient, intuitive and high-performance. Are you going on a long weekend excursion or simply going for a ride in the fresh air? Are you planning a tour of the mountains without a stop? Are you moving about town, on the way to work, running errands or meeting friends?

Whatever your plans, the HESC ATS family supports you in all of your activities, whether it's power you're looking for or extreme comfort. Our free wheel design guarantees unlimited pleasure, pure freedom and a smooth ride!


Refined simplicity is not just a slogan; it's a forward-looking concept. Our mission is to meet the highest quality standards and guarantee easy handling, both in terms of use and service.

This translates into the least possible downtime and reduced service and maintenance costs. The HESC ATS Ebike System relies on fine-tuning its components and on as little integration as possible. Easy access, no special tools, no computers. - the Ebike doesn't attempt to be a UFO, it is still a bike.

We call it QSP - Quick Service Product.

Quick Service Product

ATS Motor


Every system requires powerful and reliable propulsion! The HESC ATS rear wheel drive system is the heart of our system!

With its 50 Nm torque and its 250 W (max. 400 W) it has excellent acceleration and pull and proves its stamina even in the mountains. If your outing takes longer than planned or if you use the bike for training purposes, with the genuine free wheel function it rides like a normal bike if the battery is flat or the motor exceeds 25 km/h. No resistance, just pure freedom!

The rear-wheel-drive system reduces the physical wear and tear of cranks, cassettes and chains and their associated costs.

Power: 250 W (maximum 400 W)
Torque: 50 Nm
Voltage: 36V
Free wheel funktion: Genuine free wheel function
Individual weight: 3,2kg
Particularity: Speed sensor

SR Suntour ATS Heckmotor

ATS Display


The HESC ATS Display, together with the satellite, forms the central communication system of our system.

It shows all necessary and interesting information while in use and after use, such as data on speed, range or riding mode. You just start the system and switch it off, activate the push assistance or switch the light on!

Display size:2,7 inches
Choice of riding mode: No Assist, Eco, City, Sport, Climb
Operation: handle bar remote control
Speed indication
Total kilometres, trip kilometres
Rest capacity in %
System On / Off
Walk assistance
Light On / Off
Satellite-operated push assistance

SR Suntour ATS Display und Bedieneinheit

ATS Crank


You ride, we measure. The pedalling frequency and pedalling power parameter is determined via infrared.

You have a decisive influence on the driving properties, which we want to make as natural and dynamic as possible. You decide on the characteristics by choosing the assistance mode and the way and manner in which you turn the pedals.

Adapted to specific requirements, our city bikes have a crank with 38 teeth; mountain bikes and sporty trekking bikes have 42 teeth and an additional chain ring guard.

Torque sensor
Pedalling frequenzy sensor
Infrared measurement: 
36 measuring points
Chainwheel size: 42 teeth

SR Suntour ATS Kurbel

ATS Battery

The battery mentioned above is an example for a typic configuration. The final design and specifications of the battery are determinded by the bike manufacturer.

For more details about the battery type please refer to our sales staffs or contact the bike manufacturer.

Capacity: 11.6Ah

Range: up to 100km

Charging time: 4-5 hours

Charging cycles with guaranteed residual capacity: 500
Charging options: in installed or uninstalled position

SR Suntour ATS Akku