From after work laps to backcountry missions, the Ibis Oso Trail Eagle 90 Ebike

What Our Gearhead® Experts Are Saying:

"The Ibis Oso Trail Eagle 90 Ebike is my go-to when I want a bike that handles everything from after work laps to full day adventures. With 160mm of travel, a Bosch CX Gen 5 motor, and a build spec that punches well above its price, it is the kind of eMTB you reach for every single time."

Who It's For

Versatile trail riders who want one bike that does it all.

Built for riders who want a capable, do-everything trail eMTB that is equally at home on mellow singletrack and more demanding terrain.

What It's For

All day trail missions, weekend adventures, and everything in between.

This is the bike for riders who want to go further and ride more. From familiar local trails to bigger days out, the Oso Trail Eagle 90 Ebike handles it all without compromise.

Why We Like It

A balanced carbon frame, capable build, and motor that makes every ride better.

The Oso Trail Eagle 90 Ebike pairs a full carbon frame with 160mm of front travel and 150mm rear, confident trail geometry, and a Bosch Performance Line CX Gen 5 motor. It is efficient on the climb and composed on the descent.

Heads up. We do our best to keep bike specs and images current, but occasional component changes can happen without warning and sometimes the photos might not show the exact build you'll receive. If you want to double check the details, our Gearheads are always here to help.

Details

Bosch CX Gen 5 motor makes long climbs and big days feel manageable
600Wh battery with PowerMore support so you rarely have to cut rides short
Carbon frame with balanced trail geometry that rides well in both directions
RockShox Lyrik Base fork smooths out the trail so you stay in control
Super Deluxe Select+ shock keeps the rear tracking through rough terrain
SRAM Maven Base brakes give you reliable stopping power on any descent
SRAM Eagle 90 Transmission shifts cleanly so you can focus on the ride
BikeYoke dropper post lets you move freely between climbing and descending
Item #IBSB0FJ

Frame Material: Carbon
Suspension: dw-link
Rear Shock: RockShox Super Deluxe Select+
Rear Travel: 150mm
Fork: RockShox Lyrik Base
Front Travel: 180mm
Headset: Cane Creek 50 ZS56/ZS56
Shifters: SRAM Eagle 90 Transmission
Rear Derailleur: SRAM Eagle 90 Transmission
Computer: Kiox 400c
Drive System: Bosch Performance Line CX Generation 5
Battery Type: integrated Bosch PowerTube
Battery Energy: 600Wh (PowerMore 250Wh compatible; 850Wh total)
Max Torque: 100Nm
Crankset: Raceface Affect R
Chainring Sizes: 34t
Crank Arm Length: 160mm
Cassette: SRAM XS 1275 Transmission T-Type
Cassette Range: 10-52t
Chain: SRAM GX Eagle Transmission T-Type
Brakeset: SRAM Maven Base
Brake Type: hydraulic disc
Rotors: SRAM Centerline (220mm)
Handlebar: Blackbird 35 (aluminum)
Handlebar Width: 800mm
Grips: Lizard Skins Strata Single Clamp
Stem: [small - medium] Blackbird 35, [x-medium - x-large] Blackbird 50
Stem Length: [small - medium] 35mm, [x-medium - x-large] 50mm
Saddle: WTB Solano Fusion CrMo
Seatpost: BikeYoke Dropper
Wheelset: Blackbird Send Alloy
Hubs: Blackbird 32H 6-Bolt
Front Axle: 15 x 110mm
Rear Axle: 12 x 148mm
Tires: [front] Maxxis Assegai EXO+ MaxxGrip, [rear] Maxxis DHR II DD MaxxTerra
Tire Size: [front] 29 x 2.5in, [rear](small - x-medium) 27.5 x 2.5in, (large - x-large) 29 x 2.5in
Activity: trail
Manufacturer Warranty: [bikes, wheels, rims] lifetime

One Frame, Three Trail Modes

Find Your Model

Mountain biker wearing MTB helmet and shorts sending jump on full-suspension mountain bike through wooded forest singletrack trail

OSO HD

Shuttle laps and big mountain descents

180mm front / 165mm rear travel

Gravity geometry gets riders to the top faster for another run down

Oso HD Eagle 90 Ebike Oso HD Ebike Frame

OSO Trail

All-day missions and backcountry access

160mm front / 150mm rear travel

Efficient enough for long climbs, capable enough for technical descents

Oso Trail Eagle 90 Ebike Oso Trail GX Transmission Ebike

OSO Sport

Local trails and fast flowing singletrack

140mm front / 160mm rear travel

Less travel makes the bike more responsive and agile on tighter terrain

Oso Sport Eagle 90 Ebike

Inside The Oso

Quiet Motor, Real Torque

The Bosch Performance Line CX Gen 5 runs quiet on the trail. It delivers high torque with natural-feeling pedal assist that responds to input rather than fighting it

Close-up of ibis Oso battery extension pack mounted on waterbottle holder spot.

All-Day Battery, More If You Need It

The internal 600Wh battery sits low in the frame, improving balance and handling. Add the optional PowerMore 250Wh extender to reach 850Wh total for longer routes

Built To Change With Your Riding

Swap the shock and fork to convert between HD, Trail and Sport travel. Bolt-on dropouts let riders fine-tune chainstay length and switch between 29" and 27.5" rear wheels

Five Sizes, All Dialed

Every frame size gets its own geometry, so the bike fits and handles correctly for your height. A new Extra Medium sits between Medium and Large, covering the height range where 80% of Ibis riders land

Full Suspension, No Compromise

dw-link suspension manages pedaling, braking and trail input independently, so the bike stays efficient on climbs and controlled on descents

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Built To Fly

Ibis Cycles started in 1981 when founder Scot Nicol opened a tiny workshop near Mendocino, California, with no big plan beyond building mountain bikes that were fun to ride and tough enough for the rough stuff. Today, from its home base in Santa Cruz, Ibis remains a small, rider-owned company focused on doing a few things really well: designing carbon and aluminum mountain bikes that climb efficiently, descend playfully, and feel lively every time you point them down the trail. With long-time owners and in-house engineering still deeply involved in the day-to-day, the brand stands for bikes that are light, durable, and above all, a blast to ride—whether you are racing, lapping local trails, or just chasing that next perfect corner.

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