2025 Orbea Diem 20 Electric Bike In Glitter Anthracite

The New A to B

Congested. Crowded. Delayed. Disconnected. Why can’t moving around the city be seamless? In fact, why can’t it be a pleasure? Make the journey the best part of your day. A to B should be a pleasure, not a chore. Diem is a powerful Urban Ebike you can count on, a trusty partner that brings a touch of class to the day-to-day. From the first moment you ride it, you know you are on something special. Grab a Diem and seize the day!

A step above. Minimal Design. Advanced Construction.

Designing the ultimate ride means controlling all the details from the start. Sleek finishes are the result of advanced manufacturing technology.

Enjoy Every ride.

Precision in every corner, control in every occasion. Make the pleasure of riding an essential part of your day. The combination of the carbon fork, wider tyres and our patented Diamond Glide frame design helps absorb bumps, giving a controlled ride on rougher streets.

Diamond Glide. The Heart Of Diem.

No maintenance, no fuss, just glide through the streets. This patented design allows the frame to flex vertically, absorbing bumps and giving a smooth ride on rougher streets.

Advanced Alloy Frame.

Light and tough enough to shrug off city life's inevitable knocks and bumps.Advanced manufacturing techniques allow us to enhance the design with invisible welds, reduce weight, and optimize the frame rigidity. Balancing rigidity and weight is vital to improve handling and add fun.

Carbon fork. Lighter and maintenance free.

Using carbon fiber to manufacture our forks helps absorb vibrations, save weight and add precision to steering and braking.

Urban geometry. Dynamic and Unflappable.

Keeping all the weight low and centered means fast reflexes and inherent stability, vital for slotting through the urban jungle. Designing a frame to do all this, while also making it easy to keep track of what is going on around you is a balance and takes careful consideration

Endless Power. Intelligent control.

Effortless journeys. Speed up the steepest climbs. Safely match the rhythm of the traffic. All day. Every day. The combination of a driven rear wheel, with a central motor and our integrated battery gives a low center of gravity and offers the best performance and control.

You can do this all day

Our batteries pack a lot of miles into a small space. Most people will need to charge their Diem less than once a week. Our Secure Battery System allows us to design better looking, slimmer frames, remove weight and also increase stiffness. It all adds up to the best ride. Our batteries are built into the downtube, protected from knocks or theft. Designing our own batteries, and using the latest cell technology, enables us to fit more power into a smaller, lighter package.

Instinctive Control

Diem uses an array of sensitive sensors, measuring every push on the pedals, speed and acceleration. These clever sensors anticipate the assistance you want and apply it instantaneously. Working with Shimano, one of the leading e-bike motor manufacturer, gives the best reliability but also means that there are more service centers should you ever need one.

Three Assistance Modes

The subtle remote is easy to control without moving your hands from the bars. The integrated LED lights tell you which assistance mode you are in. In the top mode you have easy access to the full power of the motor, meaning you can ride to work effortlessly and arrive fresh. The lowest assistance mode places more demands on your legs, raising your heart rate as you speed through the streets and enjoy the way home.

Four times the strength of an average rider.

The motor reacts instantly to your inputs, anticipating what you want and adjusting the power accordingly.

Safety built into every journey.

It is no secret the city can be a jungle sometimes. With Diem you can relax because safety is designed in from the start.Confident handling, powerful brakes and grippy tyres make it easy to react to unexpected moments. The powerful motor makes it easy to slot into traffic and take control.

Intelligent lighting system

Every Diem has a built in, high-tech lighting system which automatically switch on to keep you safe and light the way ahead. The wrap around lights make sure you are always visible. Every time you switch Diem on, the wraparound lights power up in sequence. This is not just for looks; these lights are designed to keep you visible day or night.The reactive rear lights brighten to announce braking.The front beam switches on automatically at night to increase your visibility even if the streets are dark.

Everything You Need. And Nothing More.

Simplicity is key to reliability. Designing the components, accessories and frame to work together lets us offer simple solutions which increase functionality and reliability. Our unique range of accessories and components are developed at the same time as the frame to give a perfect fit.

Phone Holder

Our one piece stem and handlebar is designed to make mounting your mobile phone secure and easy with the integrated SP Connect system. With the USB-C port you can also charge it while you ride.

Integrated kickstand

Designing a kickstand which pivots from the center of the bike and also integrates neatly when not in use is complicated. The benefits are clear though, with increased stability and security.

20 Kg Rear Rack

The solid and robust rack works with traditional pannier hooks, Ortlieb QL 3.1, MIK and MIK-side mounting systems and can carry up to 20kg.

Trailer Compatibility

Our optional adaptor makes Diem 10 Advanced and Diem 20 compatible with Thule, Burley, Croozer and Hamax trailers. Diem 30 works with conventional thru axle adapters.

All UK Mainland Bike Deliveries Over £999 - Free Bike orders are sent via TNT/FedEx with estimated delivery within 1 working day after quoted dispatch time (For Scottish Highlands, Northern Ireland, Isle of Man and the Channel Islands deliveries please allow an additional 1-4 working days).Bike orders under £999 will incur a £20 delivery fee.

Free Delivery On Orders Over £50.00 - When you spend more than £50.00 at 99 Bikes deliveries to a UK mainland address will be free (excludes bikes & large items).Certain regions and territories of the UK will incur additional charges, details of which can be found on our delivery page.

Click & Collect Orders -Please be aware Click & Collect orders may take some time to fulfil. We advise not to travel to your chosen store until you have been notified that your order is ready for collection.

At 99 Bikes our priority is to ensure that you are highly satisfied with your purchase. In the unlikely event that you aren't, we offer a 30 day online return policy* in which you can receive a full refund. Any item including bikes (with the exception of food) can be returned to us for any reason provided it is received by us in an unused and resalable condition in or with its original packaging which must be undamaged.

Find Out More About Returns >