
Calamus Ultra
Move Over, Yesterday.
Hello, Tomorrow.

Pre-order today to get a 10% discount – Use coupon code ‘Welcome10’
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Free Delivery
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30-Day Free Returns
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2 Year Warranty

Conquer every commute & countryside
Stay alert with haptic vibrations, track your bike’s location through the app, navigate conveniently using the touchscreen dashboard and power through steep hills. All of this without breaking a sweat. It’s the safest and most advanced e-bike for a reason.

Safety First
Say goodbye to blindspots.
Give clear signals.
Breaks smooth as butter.
Safety First
Say goodbye to blindspots.

Blindspot Assist with Haptic Feedback
Inbuilt Blindspot Assist sensors gauge traffic from behind and inform the rider of incoming vehicles by providing haptic feedback using inbuilt vibration motors in the handlebar when he/she is about to take a turn/change the lane.
Safety First
Give clear signals.

Turn Indicators in Handle Bars
The handlebar houses white LED safety lights which also double as turn indicators at the push of a button.
Safety First
Breaks smooth as butter.

Hydraulic Braking System
You can stop your Calamus bike in rain, hail or sunshine due to our weather protected disk brakes. The cables are hidden inside the frame to protect it from the rain.
Secure, Always
Multiple ways for you to unlock it. Zero ways for someone else to.

The Ultra features the best-in-class security. Lock and unlock your bike with an ultra-smooth fingerprint scanner, track your bike’s location through our mobile app and rest easy as our anti-theft fasteners make it impossible for petty thieves to steal any part of your Ultra.
But what if a thief wants to steal your Ultra? Let’s play it out.
TLDR: It’s impossible.
First Attempt: Some thief tries to start your bike.
Second Attempt: Since they can’t start it, they run away with it by carrying the bike.
Final Attempt: Thief tries to find and remove whatever it is that’s keeping the chip functional, but…
But what if a thief wants to steal your Ultra? Let’s play it out.
TLDR: It’s impossible.
First Attempt
Anti-Theft Alarm
A loud anti-theft alarm starts blaring and the owner gets an instant mobile notification. Thief fails.
Second Attempt
Geo-Tracking
Thief is tracked down because of the in-built GPS chip with worldwide functionality. Thief fails. The GPS also works without the battery incase the thief manages to remove the battery.
Final Attempt
Anti-Theft Fasteners
The thief can’t remove it. The bike is put together entirely with anti-theft proof fasteners. Only the owner has the tools to open the bike – thief fails again.
Smartest e-bike of all
The answers are just a touch away.
Smartest e-bike of all
The answers are just a touch away.
Performance, Unmatched
Power meets efficiency.
Top of the Line
The Calamus Ultra-drive motor is an ultra quick and responsive motor with a combination of cadence and torque sensors for a smooth and natural ride experience.
Natural & Advanced
The Ultra responds naturally to cues from the rider – even the really subtle ones. When the electric motor provides assistance right when you need it, you’ll feel like the bike is plugged into your intuitions.
Comfort First
The Ultra uses an Internal Geared Hub that intelligently maintains a constant cadence by varying the gear ratio when needed. This ensures that the rider is always comfortable and focussed on his surroundings.

Choose what mode you ride
Eco
When you want to extend the range
Turbo
When you want speed and power
Manual
When you want to pedal on, the good old-fashioned way

Built For The UK
We studied British roads and weather when we built this bike.The touchscreen is weather-proof, the wiring is 100% internal and the tyres are puncture-resistant. Rain or not, The Ultra is always road ready.
Maximum Comfort
Calamus offers auto gear shifts based on real-time riding patterns. The Ultra is made with monoshock suspension – this allows for superior navigation and flawless ride stability.
Battery & Charging

Charge like a phone
The battery is detachable using a special key and can be charged inside your home using any normal plug point.
Ultra-Fast Charging
A 3-hour long brainstorming session at work and your battery is 100% charged. Now that’s faster turn-around than most of your coworkers.
Noise Free Ride
No lubrication. No maintenance. No noise.
Robust, Durable and Light
We used aircraft-grade aluminum to build the bike, and wielded it together in the most advanced way possible – with inert titanium gas.
