Quiver

Ibis2026

2026 Ibis Oso S

Trail

The 2026 Ibis Oso S sits at the aggressive end of the range for a trail bike, with a slacker head angle. Reach 445 to 536 mm, stack 614 to 656 mm. The Oso S 90 build comes with SRAM Eagle 90 Transmission shifting and Blackbird Send Alloy wheels.

Source: ibiscycles.com. Checked .

Key facts

Brand
Ibis
Model
Oso
Model year
2026
Frame
S
Type
Trail
Geometry labels
S, M, XM, L, and XL
Geometry
Complete for every size
Source
ibiscycles.com
Checked

Geometry by size

2026 Ibis Oso S geometry drawing, size XMSide view of the 2026 Ibis Oso S frame in size XM, drawn to scale from its published geometry, with lettered dimension lines.J 1276A 489mmB 634mmJ 1276mmH 457mmK 41mmC 624mmD 64.4°E 77.9°F 121mmG 405mmN 332mmL 722mm
Geometry drawing, size XM, to scale.
2026 Ibis Oso S geometry by size
MeasurementSMXMLXL
Reach(mm)445467489513536
Stack(mm)614625634644656
Head tube angle(°)63.964.764.464.464.4
Seat tube angle(°)77.777.777.978.478.9
Effective top tube(mm)579604624646665
Chainstay length(mm)456456457457457
Wheelbase(mm)12271246127613071338
BB drop(mm)4441413835
BB height(mm)329332332335338
Standover(mm)684697722733750
Seat tube length(mm)381381405432450
Head tube length(mm)99109121136152

Stock build

23 parts

Frame

FrameFrom the manufacturer: Frame type Full SuspensionFrom the manufacturer: Rear travel 130mm

Suspension

RockShox Pike Base
ForkFrom the manufacturer: Wheel size 29From the manufacturer: Front axle / spacing 15x110 (Boost)From the manufacturer: Brake mount 6-Bolt
RockShox Deluxe Select+
Rear shockFrom the manufacturer: Tune R55/C22

Drivetrain

ShifterFrom the manufacturer: Speeds 12From the manufacturer: Actuation type Mechanical
DerailleurSpeeds 12Maximum cog 52 tFrom the manufacturer: Actuation type ElectronicFrom the manufacturer: Cassette compatibility Not compatible with SRAM Eagle 12-speedFrom the manufacturer: Clutch yesWeight ~395 g
SRAM GX Eagle Transmission
CassetteSpeeds 12
ChainSpeeds 12From the manufacturer: Compatibility T-Type
Race Face Affect R
CranksetFrom the manufacturer: Speeds 12
Race Face Affect R
ChainringFrom the manufacturer: Teeth 34 t

Powertrain

Bosch Performance Line CX
MotorMax torque 85 NmPeak power 600 WFrom the manufacturer: Sustained power 250 WWeight 2800 g

Wheels & Tires

Blackbird Send Alloy
WheelsetFrom the manufacturer: Internal rim width 35mmFrom the manufacturer: Rim material AluminumFrom the manufacturer: Spoke count 32
TireFrom the manufacturer: TPI 60 TPIFrom the manufacturer: Tubeless ready Yes
Maxxis Minion DHR II DD
TireFrom the manufacturer: TPI 60 TPIFrom the manufacturer: Tubeless ready Yes

Brakes

BrakeFrom the manufacturer: Piston count 4From the manufacturer: Fluid type MineralFrom the manufacturer: Lever adjustments Independent bite point adjustment / Lever blade reach adjustmentFrom the manufacturer: Pad compound Steel-backed metal sintered / Steel-backed organicFrom the manufacturer: Brake type HydraulicFrom the manufacturer: Weight 381 g
RotorDiameter 200mmWeight 192 g
RotorDiameter 200mmWeight 192 g

Cockpit

HandlebarFrom the manufacturer: Clamp diameter 35mmFrom the manufacturer: Width 800mmFrom the manufacturer: Material Aluminum
StemFrom the manufacturer: Bar clamp diameter 35mmFrom the manufacturer: Steerer diameter 1.5"
Lizard Skins Strata
GripsFrom the manufacturer: Compound / material silicon

Seatpost & Saddle

Dropper post
SaddleWeight ~257 gLength 240mm

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Quick answers

Which size or configuration labels have geometry for the 2026 Ibis Oso S?
Geometry is listed for S, M, XM, L, and XL.
What are the reach and stack of the 2026 Ibis Oso S in size XM?
In size XM, reach is 489 mm and stack is 634 mm.
What is the head tube angle of the 2026 Ibis Oso S?
The head tube angle is 64.4 degrees in size XM.
What does the 2026 Ibis Oso S 90 ship with?
The stock build includes Ibis Oso, RockShox Pike Base, SRAM Eagle 90 Transmission, and Bosch Performance Line CX.
Which years of the Ibis Oso are on Quiver?
Quiver has the Ibis Oso for 2026.

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