Oso 2025

The Ibis Oso 2025 is the Californian brand's flagship enduro eMTB, built around the Bosch Performance Line CX Gen 5 motor (120 Nm, 750 W manufacturer-claimed peak, 2.8 kg) and a 600 Wh Bosch PowerTube 750 battery. Travel is 170 mm front (170-190 mm adjustable) and 165 mm rear on a full-carbon DW-link chassis with 25% progression and doubled-thickness downtube guards. Three trims from £5,999 to £9,499. Mixed wheel setup (27.5 rear on S/M, 29 rear on L/XL), 64 degree head angle flat across all sizes, chainstays 439-444 mm with size-tuning, reach 430 to 540 mm. Claimed weight 24.5 kg. The community read in one line: a properly considered carbon enduro with strong DW-link suspension and Bosch CX Gen 5 power, with a standout-low standover and 50% lower price than the V1 platform.

Drive system and range. The Bosch CX Gen 5 is the most refined motor in the eMTB market — smooth, well-supported by free OTA firmware via the eBike Flow app, and backed by the deepest dealer network in Europe and North America. The 600 Wh battery is on the smaller side of the modern range but a 750 Wh option is also catalogued on some Oso builds. @Cactus Jack Slade documented 32 miles and 4,500 feet of climbing in Trail mode with the 750 Wh, finishing with 34% battery remaining at 155 lb rider weight — that's properly good range. He also flagged that battery consumption on the Levo Gen 4 appeared worse than expected against the Oso 750 Wh on the same ride profile.

Geometry and handling. Ibis has gone with proper size-tuning. Chainstays scale from 439 mm (S/M with 27.5 rear) to 444 mm (L/XL with 29 rear), and reach progresses 430 mm (S), 460 mm (M), 500 mm (L), and 530-540 mm (XL). Head angle holds at 64 degrees flat. The DW-link suspension with 25% progression is Ibis's signature — pedal-efficient, supportive in the middle of the stroke, with progressive ramp-up for bigger hits. @Brawwp highlighted the lowest standover of any eMTB in its class, allowing flat-foot standing over the downtube — a properly useful feature for shorter and intermediate riders.

Build and value. The base trim and 1.1 GX Transmission both come in at £5,999 (24.5 kg) with Fox Float 38 Performance Series fork, Fox Float X2 Performance Elite shock, Shimano XT M8120 4-piston brakes with 220 mm rotors and SRAM GX Eagle AXS Transmission. The 1.1 X0 AXS at £9,499 (24.0 kg) steps up the suspension and drivetrain. @PDXRooster notes the Oso 1.1 launched at $5,999 — nearly 50% less than the V1 — making it one of the value plays of the carbon enduro category. @ridethatbike does flag that the current TR generation saw a $2,300 price increase with some spec downgrade, so check current build sheets carefully.

Community-verified strengths.

• @Brawwp praises the lowest standover height of any eMTB in its class, with Maxxis DH-casing tubeless tyres specced from the factory.
• @Cactus Jack Slade gets genuinely strong real-world range numbers — 32 miles / 4,500 ft climbing on Trail mode with 34% remaining at 155 lb rider.
• @ozzybmx notes the original Oso is rated for a DH fork with 170 mm front travel and 205 mm rear shock length — proper enduro-shredding intent.

Caveats and known gripes.

• 600 Wh entry battery is on the small side. The 750 Wh option ought to be the buyer default for serious enduro/all-day riders.
• @ridethatbike documents that the Oso 1.1 to current TR generation saw a $2,300 price increase with downgraded spec — check current build sheets.
• 24.5 kg claimed weight is mid-pack for the carbon enduro category, with rivals like the Norco Range VLT and Cube AMS Hybrid 177 coming in 1-2 kg lighter.

Verdict. The Ibis Oso 2025 is one of the most genuinely-considered carbon enduro eMTB platforms on the market — properly low standover, size-tuned chainstays, the best motor in the business, and the latest 25%-progression DW-link suspension. It suits intermediate-to-advanced riders, particularly shorter/heavier-built riders who benefit from the low standover, and anyone who values DW-link pedalling efficiency in a real-world enduro chassis. Look elsewhere if you want sub-22 kg weight, an 800 Wh battery as standard, or the latest DJI Avinox motor tech. Production status: current, three trims, nine size/colour combinations.