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QUASAR cruiser electric bike in dark grey with fat tires, three-quarter view
Detailansicht des ONSRA Die-Cast Aluminium Rahmens – stabiles E-Bike Design ohne Schweißnähte, belastbar bis 250kg.
Detailansicht des ONSRA Die-Cast Aluminium Rahmens – stabiles E-Bike Design ohne Schweißnähte, belastbar bis 250kg.
QUASAR cruiser e-bike side view with fat tires and seat
QUASAR electric bike frame and integrated battery, close-up
QUASAR e-bike front suspension fork and disc brake detail
QUASAR | Das ultimative Cruiser Electric Bike – side view
QUASAR cruiser e-bike head tube and frame detail
QUASAR e-bike handlebar with display, controls and phone mount
QUASAR electric bike belt drive and mid motor, close-up
QUASAR cruiser e-bike cockpit and front frame, angled view

QUASAR | The Ultimate Cruiser Electric Bike

€4.900,00 EUR
incl. btw, excl. verzendkosten

The QUASAR is not a mass-produced, off-the-shelf product. It is the result of our own design philosophy: a custom-developed ONSRA designer frame that combines aesthetics with massive stability. While other step-through bikes start to wobble at 20 km/h, our die-cast chassis stays stiff as a board.

We are currently testing this prototype under real conditions in Switzerland. If you get your hands on one of these bikes, you are not riding a finished consumer product, but a piece of ONSRA development history.

Full Technical Specifications

Category Detailed specification ONSRA Benefit
Frame type Custom ONSRA die-cast alloy Our own design. No welds at critical points, maximum torsional stiffness.
Drive / motor Ananda 250W rear hub motor (brushless) 100% street legal in Switzerland. Powerful assistance with no registration required.
Torque 45 Nm Peak Torque Optimised for brisk starts and constant power on Swiss climbs.
Speed Assistance up to 25 km/h Pedelec-compliant. No yellow plate, no mandatory helmet (recommended), no licence needed.
Battery technology 460Wh with Samsung 21700 lithium-ion cells Highest energy density and safety. We do not use cheap no-name batteries.
Range 50 km (full power) to 120 km (eco) Depends on rider weight and gradient. Realistic for daily commuting.
Charging system Smart charger (EU/CH plug) Gentle charging for maximum lifespan of the Samsung cells.
Braking system Mechanical precision disc brakes 160 mm rotors. Direct feedback and easy maintenance without the hassle of bleeding.
Tyres 27.5" x 2.0" High-Volume Street Tires Perfect grip on asphalt and dirt roads. Puncture-resistant and smooth-running.
Rims Double Wall Alloy Rims Reinforced double-wall rims to safely handle the high payload.
Lighting Integrated LED system (front & rear) Powered directly by the main battery. Automatic safety light while riding.
Display / Interface Backlit LCD multi-function display Shows speed, odometer, trip, battery level and the 5 power modes.
Drivetrain Single speed / heavy-duty chain Minimalist setup. Fewer parts that can break. Perfectly geared.
Payload (max) 250 kg (system weight) Record-breaking stability. The most stable chassis in its class.
Fork Tapered Rigid Alloy Fork Matched to the frame design for razor-sharp steering.
Saddle & grips ONSRA Comfort Series Ergonomically shaped for long rides without pressure points.
Pedals Platform pedals with grip pins Secure footing, whatever the weather.

Why buy the QUASAR?

This bike is our pilot project for the Swiss market. We built the frame this solid because we know what an e-bike looks like after two years of daily use. When you ride the QUASAR, you feel the difference of a genuine designer frame compared to run-of-the-mill production.

  • Swiss final assembly: Every unit passes through our hands at HQ.

  • Prototype exclusivity: Be one of the first to bring the new ONSRA segment to the road.

  • Full transparency: We do not hide specs behind marketing phrases.

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