Radian has launched the EXR, a new electric enduro bike with some big numbers on paper – 70hp and 30 second battery swap – and a clear focus on making electric off-road riding more practical for longer days and race use.

The headline figures are hard to ignore: 70hp, 1060Nm of torque at the rear wheel, a target weight of 125kg and a dual battery system that can be swapped in under 30 seconds without tools. Add in KYB suspension, Brembo brakes, an aluminium chassis, integrated storage and app-based ride tuning, and the EXR looks like one of the more serious attempts yet at a competition-focused electric enduro bike.

Technical specs

• Peak power: 70hp / 52kW
• Peak torque: 1060Nm at the rear wheel
• Target vehicle weight: 125kg
• Range: 60–115km off-road
• Riding time: 1–7 hours, depending on pace and use

Battery

• InfiniPack Endurance 8.6
• Capacity: 8.6kWh
• Layout: dual battery modules
• Swap time: under 30 seconds, no tools required
• Weight: approximately 2 x 22kg
• Protection: IP67 equivalent
• Charging time: 90 minutes from 20–80%
• Charger power: 3.3kW, 230V

Motor 

• Internal Permanent Magnet (IPM) with carbon-sleeved rotor
• Maximum RPM: 14,000rpm
• System voltage: 288V nominal / 336V maximum

Chassis

• Aluminium frame and subframe
• Swingarm: cast aluminium

Suspension 

• KYB 48mm closed cartridge fork and KYB rear shock –  300mm front and rear travel

Brakes 

• Brembo – 260mm front disc and 220mm rear disc

Wheels 

• Excel rims – 21-inch front, 18-inch rear 

Homologation: street legal in the EU

Price: from €14,450

Availability: from Q4 2027

Motor and drivetrain

The Radian EXR uses an Internal Permanent Magnet motor with a carbon-sleeved rotor, producing 70hp and a claimed 1060Nm of torque at the rear wheel. The motor can spin up to 14,000rpm and works with a high-performance inverter.

The numbers are big, but Radian says the point is control rather than just chasing peak power. The electric drivetrain allows instant response, but the bike’s riding characteristics can be configured to suit different terrain and rider preference.

The EXR also includes reverse gear at the press of a button, useful in technical sections, tight spots, or simply when loading the bike into a van or trailer.

Battery and charging

The InfiniPack Endurance 8.6 battery system is one of the most interesting parts of the bike. Instead of one large pack, the EXR uses two removable modules, each weighing around 22kg. Radian says the system allows a battery swap in under 30 seconds by one person, without tools.

The curved shape of the battery modules is designed to make removal easier with a pull-and-lift motion, while also helping place the centre of gravity in a more useful position for handling.

The 8.6kWh battery pack is claimed to offer between 60 and 115km of off-road range, or between one and seven hours of riding depending on pace and use. Battery lifecycle is listed at 2000 hours of riding time before dropping to 80% of original capacity.

Charging from 20–80% takes 90 minutes using the 3.3kW charger. Radian will also offer the InfiniDock charging dock, allowing riders to charge battery modules outside the bike while continuing to ride with another set.

Chassis 

The EXR is built around an aluminium frame and subframe, with a cast aluminium swingarm and a target vehicle weight of 125kg. Radian has clearly put a lot of the design focus on packaging, with the motor, batteries and cooling system all integrated into the structure of the bike rather than simply placed inside a conventional chassis.

The frame also works as part of the cooling system, acting as an integrated heatsink for the drivetrain. The motor is mounted within the arch of the battery pack and uses a patent-pending radial mounting system, making it part of the bike’s structure. Radian says this helps stiffness and keeps the rotating mass close to the centre of gravity, aiming for a lighter and more predictable feel on the trail.

The bike also comes with an integrated skid plate as standard, rear grab handles built into the rear fender, and clearance in the front mask area to make strapping the bike down easier during transport.

Suspension

Suspension is handled by KYB, with Technical Touch involved in the set-up. Up front, the EXR uses a 48mm closed cartridge coil-spring fork with 300mm of travel and adjustable compression and rebound damping.

At the rear, there is a KYB shock with a 50mm piston, 300mm of wheel travel, linkage suspension, high- and low-speed compression adjustment, rebound adjustment and adjustable preload.

On paper, this is a serious suspension package rather than a basic electric playbike set-up, and it should matter for enduro riders who want something capable of handling proper off-road hits, ruts, logs and longer days.

Brakes and wheels

Braking comes from Brembo, with a double 24mm piston floating caliper, 10mm master cylinder and 260mm disc at the front. At the rear, the bike uses a single 26mm piston floating caliper, 13mm master cylinder and 220mm disc.

One detail worth noting is that the rear brake is operated by a left-hand lever. That is becoming more common on electric off-road bikes and should allow riders to focus more on body position and technique without a conventional foot brake pedal.

The Founders Edition gets Haan wheels with billet hubs, Takasago EXCEL A60 rims and heavy-duty stainless-steel spokes, in 90/90-21 front and 140/80-18 rear sizes.

Storage and enduro details

The EXR includes a 7-litre integrated storage area, designed to carry tools, food, drinks, first aid items or spare parts without needing a backpack.

Radian says the storage system is designed around future swappable modules, including an extensive toolkit, on-board charger module and CCS charger module. For enduro use, this is one of the more practical ideas on the bike, especially if it keeps weight low and central instead of on the rider’s back.

Connectivity and interface

The EXR uses a simple display designed to be operated with gloves and avoid unnecessary distractions. It also includes manual lap timing and an integrated enduro time-keeping system in development, aimed at replacing taped schedules and mental calculations during time-card events.

Riding characteristics can be adjusted through an Android and iOS app, with preset modes or custom profiles for different conditions. Riders will be able to switch between configured modes using physical controls on the handlebar.

The bike also supports over-the-air updates, allowing software, battery and ride behaviour improvements to be added after purchase.

Price and availability

The Radian EXR starts from €14,450 and is expected to be available from Q4 2027.

On paper, the EXR brings a lot to the electric enduro conversation: serious power, high-end components, proper off-road geometry, quick battery swaps and a focus on practical enduro details. As always with electric bikes, the real questions will come once riders can test the range, weight feel, durability and battery logistics in proper race conditions.

More information and pre order: www.rideradian.com