Oso 1.1 GX Transmission

Current build information is limited, but the available Oso 1.1 GX Transmission build is listed at $6,449. Review coverage consistently frames that price as a major repositioning versus the bike’s original launch cost, and the spec is widely seen as appropriately serious for a full-power e-enduro bike. The package centers on Bosch Performance Line CX drive hardware with a 750 Wh battery, plus SRAM GX Transmission shifting and Shimano XT four-piston brakes with 220 mm rotors, a combination reviewers repeatedly singled out as especially well suited to the torque and weight demands of this category.

Suspension is built around a 170 mm front / 155 mm rear layout, and reviewers have generally viewed the Fox 38 and Float X2 package as capable rather than compromised at this price. The build’s value proposition is not low weight or boutique finishing kit, but a durable, high-capability chassis paired with drivetrain and brake choices that make sense on a 54-pound eMTB. Based on the available data, the Oso is currently offered as a focused, single-build option rather than a broad range with multiple price tiers.

Reviewers are unusually consistent about the Oso’s core character: it rides like a very long, very planted e-enduro bike that feels calmer the faster and rougher the trail gets. OutdoorGearLab called it "brawny" and "composed," while multiple outlets described it as a "trophy truck" or "enduro battleship." Testers repeatedly praised the 155 mm dw-link rear suspension for its very supple initial stroke and strong traction, with Tweed Valley Bikes highlighting how it "flutter[s]" across braking bumps and rough chatter. Several reviewers also found that the bike climbs far better than its size suggests. Mountain Bike Action and Biker’s Edge pointed to the steep seat angles and balanced weight distribution as key reasons it can clear steep, technical pitches with unusual consistency, while the Bosch Performance Line CX motor was widely praised for smooth, natural-feeling support.

The drawbacks are just as clear. At roughly 53 to 55 pounds, the Oso is not considered lively or easy to manhandle, and reviewers from OutdoorGearLab, Mountain Flyer, and Pinkbike all noted that its long wheelbase becomes a liability in tight switchbacks and low-speed technical moves. Pinkbike and Evans MTB Saga also found Ibis’s lightly damped "Traction Tune" setup too fast in rebound for aggressive jumping or hard landings until adjusted, with one tester reporting that the bike could feel bucky before tuning. Durability feedback was mostly positive around the chassis, Bosch system, and stout parts package, but some outlets criticized peripheral details such as the flimsy battery door and vulnerable plastic protection pieces. On value, opinion shifted dramatically over time: early reviews were critical of the original $10,999 pricing, whereas later reviews from OutdoorGearLab and Blister viewed the $5,999-$6,449 Oso 1.1 as one of the stronger-value options in the full-power carbon eMTB category.