The new Ibis Oso has landed at an interesting moment for electric mountain bikes. Over the past couple of weeks, much of the conversation has been dominated by fresh Avinox M2S launches and a wider sense that the full-power eMTB market is pushing ever harder towards bigger numbers, bigger batteries and more aggressive claims. Ibis has taken a different route. Rather than joining the latest Avinox rush, it has rebuilt the Oso around Bosch’s fifth-generation Performance Line CX system and wrapped it in a package that looks more refined, more modular and arguably more thought-through for riders who care about handling as much as headline output.
That makes the Ibis Oso relevant straight away. This is not just a spec refresh. The previous Oso was always a distinctive bike, but its styling divided opinion and its layout felt a long way from the rest of the Ibis range. The new version looks much more like an electric extension of the brand’s core mountain bikes, and that alone makes it easier to take seriously. More importantly, Ibis is pitching it as one frame with three personalities, giving riders a choice between HD, TR and S configurations rather than forcing everyone into one fixed idea of what a full-power eMTB should be.
One platform, three different ways to ride
At the centre of the new Ibis Oso is a carbon frame built around Bosch Gen 5 CX power, a 600Wh battery and compatibility with Bosch’s 250Wh PowerMore range extender. Ibis says the smaller battery choice is intentional, with the aim of keeping weight lower and the mass more central for sharper handling. That is a notable move at a time when some rivals are using 800Wh packs almost by default. For many UK riders, that 600Wh plus range extender approach may actually make more sense, especially if it helps the bike feel less cumbersome on tighter, slower, more technical trails.
The other big story is modularity. The Oso can be configured in three travel formats: HD with 180mm front and 165mm rear travel, TR with 160mm front and 150mm rear, and S with 140mm front and 130mm rear. Add in interchangeable dropouts that allow riders to run either 29in or mixed wheels, plus adjustable chainstay lengths, and the result is a bike that can be tuned more meaningfully than most launch-day eMTBs. Ibis has also added a new XM size, sitting between medium and large, which should help more riders land on a better fit without compromise.
Why Bosch and modularity may be the smarter story
The most interesting part of this launch is that Ibis has not tried to win the internet on raw numbers. In fact, that is almost the point. While the wider market argues over the latest output claims and whether Bosch can answer Avinox strongly enough, as explored in our piece on DJI Avinox vs Bosch CX-R, Ibis is leaning into a different set of priorities. It is backing Bosch for service support, proven ecosystem strength and a ride character many riders already trust, then using frame design and adjustability to make the bike stand out.
That feels like a sensible play. For plenty of riders, especially those spending serious money on a premium eMTB, confidence in the motor ecosystem still matters just as much as another jump in peak power. Bosch also gives the Oso a cleaner ownership story for riders who want dealer familiarity, app support and a system that should not feel obsolete the moment the next big motor announcement lands. In that sense, the Ibis Oso looks like a bike built to age well, not just to trend well.
Pricing and what it means for UK riders
US pricing starts at $7,999 for the Oso S, rising through the TR range and up to $8,999 for the Oso HD, with frame-and-shock options also available on selected models. UK pricing has not yet been pushed as heavily in the launch material, but the more immediate takeaway for Electric MTB UK readers is where the bike sits in the market. This is a premium, full-power carbon eMTB aimed at riders who want a proper mountain bike first and a motor system second, rather than a rolling technology demonstration.
That may end up being the new Oso’s biggest strength. It arrives at a time when many launches are trying to grab attention through output alone, yet Ibis has produced something that looks calmer, more mature and potentially more usable across a wider spread of riding. In a market that is getting louder by the week, that might be exactly what helps it stand out.