Atherton has launched the S.170E, its first full-power eMTB, and while the timing inevitably pulls attention toward the new Avinox system, the more interesting angle is what this bike says about Atherton itself. In a week full of motor headlines, the S.170E looks like a brand trying to enter the category on its own terms, with ride feel, sizing and frame behaviour doing as much of the talking as the power figures.

That matters because Atherton has never really been a numbers-first brand. Its identity has been built around chassis feel, precision and a made-in-Wales story, so the first electric mountain bike had to feel like a proper Atherton rather than simply a fast way to join the full-power market. If you want the wider context around today’s motor launch, read our take on the Avinox M2S motor launch and the bigger questions raised in Avinox M2S motor: remarkable engineering, awkward questions for e-MTBs.

The real story is how Atherton has packaged the bike

Yes, the S.170E uses the new Avinox M2S drive system, with Atherton quoting up to 150Nm of torque and 1500W peak power. But the company’s own messaging makes clear that the motor is not being treated as the whole story. Instead, Atherton leans heavily on the compact packaging of the system, arguing that it has allowed the brand to control proportions, suspension behaviour and weight distribution in a way that keeps the bike balanced and predictable across all sizes.

That is where the S.170E starts to stand apart from more generic launch-day coverage. Atherton is not only selling power. It is selling the idea that a compact full-power system has made it possible to preserve the ride character the brand is known for. The bike gets 170mm of rear travel paired to a 180mm fork, with the DW4 suspension platform tuned specifically for the added mass and demands of a full-power eMTB. If you want the broader buyer’s-guide context for where this sits in the market, our current Best full-suspension eMTB 2026 roundup is the place to start.

Fit and frame design feel just as important as power

One of the strongest parts of the launch is Atherton’s continued focus on fit. The S.170E will be available in 12 frame sizes, starting from a 405mm reach, with full dropper insertion across the range. That is not a token detail. In practical terms, it means Atherton is trying to carry one of its biggest non-electric selling points straight into the eMTB category.

The frame itself also matters. Rather than going carbon and chasing the most generic premium-bike recipe possible, Atherton has built the S.170E around its S-Range aluminium chassis, using CNC-machined 7075 aluminium in the brand’s lug-and-tube construction. Every frame is manufactured and assembled in Machynlleth, Wales, which keeps the local production story front and centre. The 700Wh cylindrical battery is fully integrated, and Atherton says its slimmer shape helps keep mass low and central while avoiding the oversized frame shapes that can compromise handling. For a plain-English explainer on why that matters, our guide to e-MTB motors and batteries explained is worth reading alongside this launch.

Premium pricing, but a clear statement of intent

The S.170E will be offered in three builds, priced at £6,999, £7,999 and £8,999. All come with Mavic E-Deemax wheels, Hayes Dominion A4 brakes and Continental Kryptotal DH tyres, which underlines that this is being pitched as a serious long-travel eMTB rather than a softened trail bike. Orders are open now through Atherton Bikes, with first deliveries expected from early summer 2026.

The bigger takeaway is simple. Atherton’s first full-power eMTB does not look like a brand abandoning its identity to chase the latest power war. Instead, the S.170E looks like an attempt to prove that fit, handling and frame character can still be the lead story, even when the motor headlines are impossible to ignore.