THE FIRST SYSTEM DEVELOPED SPECIFICALLY FOR THE NEEDS OF ROAD CYCLISTS

At the heart of the system is a drive that complements rather than dominates. So compact that it disappears into the frame. So light and quiet that you forget it's there. So sensitive that it pulls along without attracting attention.
The rest also remains in the background: a slim battery in the down tube, a remote under the handlebar tape, a display discreetly integrated into the end of the handlebars. Technology that disappears. Only the riding experience remains visible.

Thanks to Harmonic Pin Ring technology, we have built the smallest,most efficient mid-motor system ever to be found in a bicycle.

And we've gone even further:

• Intelligent sensor technology that understands your pedaling.
• Adaptive software that adjusts to your pedaling.
• Full integration for gears, lights, GPS etc. - powered by a single battery.
• Rides and feels like a classic road bike - only further, longer, higher

The HPR40 is not just a new motor. It's a new way of riding a road bike.

Revolutionarily simple,
Technologically superior:

The harmonic pin-ring transmission

The TQ-HPR technology is based on a completely new, exceptionally simple but technically sophisticated design.

It combines maximum precision with minimum space requirements - simple in design, but unrivaled in performance.

With virtually loss-free and backlash-free power transmission, the system works efficiently and quietly. The result: a direct, instantaneous response that enables an exceptionally natural and dynamic riding experience.

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