Every electric enduro bike shares the same weak point: what happens when the battery runs low halfway through a long loop, miles from a charger. Stark’s answer has been a bigger single pack and fast charging. Bonnell offers a swappable battery, but not a rapid dual-pack system. A Netherlands-based startup called Radian thinks it has a cleaner solution, and it’s built an entire bike around it.

The company’s roots trace back to Electric Superbike Twente, a University of Twente student racing team with championship-winning electric race bikes behind it. That racing pedigree shows in the EXR’s spec sheet: a 70hp motor spinning to 14,000rpm, 1,060Nm of rear-wheel torque, KYB suspension and Brembo brakes — componentry more associated with serious race machinery than a startup’s debut model.

The real story, though, is the battery. Radian’s InfiniPack system splits an 8.6kWh capacity across two modules that can be swapped in under 30 seconds without tools, delivering 60–115km of range depending on configuration. It’s a direct answer to the exact scenario that trips up every other electric off-road bike: a flat pack a long way from home.

None of this is available yet. Reservations are open now, but Radian isn’t planning deliveries until Q4 2027, and only to the Netherlands, Belgium and Germany initially, with wider European rollout to follow. Pricing starts at €14,450. There’s no indication of Australian distribution at this stage — this is a bike to watch develop, not one to shortlist.

Still, the pitch deserves attention here. Australian trail and hard enduro riders deal with exactly the kind of long, remote days that expose every electric bike’s range limits, and infrastructure to recharge mid-ride is often nonexistent. A genuinely fast, tool-free battery swap is the kind of feature that could matter a great deal in Australian conditions, whenever — or if — it makes it to this market.