Ibis Oso HD 90

2026 MountainEnduro Electric bicycle Manufacturer page

Last known price: $8,999

Prices shown first for United States
Travel: 180 / 165 mm Fork / rear shock
Wheels: 29″ / 27.5″
Drivetrain: 1 × 12 34t / 10–52t
Gear range: 520%
Battery: 600 Wh
Frame: Carbon
Brakes: Hydraulic disc

Rider height by size (cm)

Size guide

SM 162–173
MD 169–180
MD/LG 175–186
LG 180–192
XL 188–199

Components

16 of 22 identified

Parts found in a manufacturer catalog show their brand, model and key numbers, and the steps show how precisely they are identified: brand, series, model, or the exact product. The info button has every detail and the text the manufacturer published.

Frame and fork

1 part

Frame

Carbon Fiber Not identified

Electric system

3 parts

Suspension

3 parts

Fork
- Fox 38 FACTORY - GRIP X2
Rear shock
- Fox FLOAT X2 FACTORY
Remote

Top tube mounted Kiox 400C controller and display Not identified

Drivetrain

6 parts

Brakes

1 part

Brakes
- SRAM Maven Silver

Wheels and tires

2 parts

Rims

Blackbird Send Alloy, 32H, Blackbird HubsSM-XM, F: Send I, 29 / R: Send II, 27.5LG-XL, F: Send I, 29 / R: Send II, 29 Not identified
Tires
- Maxxis Assegai

Cockpit and contact points

6 parts

Grips
- Lizard Skins
Handlebar

Blackbird 35 Aluminum Riser Bar 800mm Not identified
Headset

ZS56, bigger bearings and allows for internal light routing Not identified
Saddle
- WTB Silverado
Seatpost
- KS
Stem

BLKBRD StemSM-MD: 35mm, XM-XL: 50mm Not identified

Sizes and geometry

5 sizes Open in the geometry plotter

Enter your height to highlight matching ranges.

Size MD/LG

Table

Geometry diagram unavailable

Diagrams for different front and rear wheel sizes are not available yet. Available facts remain in the table.

Size Reported by the manufacturer

Complete manufacturer geometry table 5 published sizes

Complete manufacturer geometry by size
Measurement
Frame
Reachmm	428	450	474	498	522
Stackmm	626	637	646	656	668
Top tube lengthmm	583	608	628	648	668
Seat tube lengthmm	381	381	405	432	450
Head tube lengthmm	99	109	121	136	152
Head tube angle	62.3°	63.1°	63.1°	63.1°	63.1°
Seat tube angle	76.1°	76.1°	76.6°	77.1°	77.6°
Chainstay lengthmm	440	440	455	455	455
Wheelbasemm	1233	1251	1295	1325	1357
Front centermm	794	812	841	871	902
Bottom bracket dropmm	27	24	21	18	15
Bottom bracket heightmm	346	349	352	355	358
Standover heightmm	706	717	745	755	771
Fork rakemm	45	45	44	43	44
Trailmm	146	140	141	142	141
Stack/reach ratio	1.46	1.42	1.36	1.32	1.28
Suspension and parts
Crank lengthmm	160	160	160	160	160
Dropper post travelmm	140	140	180	180	180

Not published by the manufacturer: Front travel, Rear travel, Handlebar width, Stem length, Stem angle and Seatpost length.

Specifications

Frame and fork

Intended fit: Unisex
Frame material: Carbon

Suspension

Suspension configuration: Full suspension
Front travel: 180 mm
Rear travel: 165 mm

Drivetrain

Derived by Bikelake

Front chainrings: 1
Smallest chainring: 34
Largest chainring: 34
Rear sprockets: 12
Smallest sprocket: 10
Largest sprocket: 52
Lowest gear: 18.0 in
Highest gear: 93.5 in

Wheels and brakes

Wheel configuration: Different sizes
Brake type: Hydraulic disc

Fit and controls

Seatpost: Dropper seatpost
Shifting: Mechanical

Electric system

Battery capacity: 600 Wh

Additional specifications

Battery: 600Wh internal battery and optional PowerMore 250Wh range extender compatible, delivering a total capacity of 850Wh
Fork spring: Air
Tire width: 2.5″
Wheel material: Aluminum
Wheel size: 29″, 27.5″

Technical analysis

3 measures

How these figures sit among bicycles of the same class and model year. Context, not a ranking.

Front travel

180 mm

This value is above the central range for this class.

Cohort: Mountain / Enduro Model year: 2026
Sample: 1,332 bicycles with this information
Coverage: 95.2% of the class

Rear travel

165 mm

This value is within the central range for this class.

Cohort: Mountain / Enduro Model year: 2026
Sample: 1,005 bicycles with this information
Coverage: 71.8% of the class

Shifting

Mechanical

454 of 1,399 bicycles with this information use electronic shifting.

Cohort: Mountain / Enduro Model year: 2026
Sample: 1,399 bicycles with this information
Coverage: 100.0% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 6.9 km/h
Highest gear: 35.8 km/h

Total gear range 520%

Technical details and class reference

These speeds describe the gearing at the selected cadence, not how fast you can ride.
Calculated from published gear-inch values and their wheel-size assumptions.
These gearing values describe the bicycle, not a selected frame size.
A 100% range means one ratio; 500% means the highest ratio is five times the lowest.
For e-bikes, motor assistance cutoff is not represented.

Gear-inch range

Lower gear-inch values travel less distance per pedal revolution; higher values travel farther.

This bicycle: 18.0–93.5 gear inches

Lineup changes

The published facts that differ across this family's builds and from the same model a year earlier. Missing information never counts as zero.

Differences across 2026 builds

Differences across 2026 builds
Specification	This bicycle Ibis Oso HD 90	Ibis Oso S 90	Ibis Oso TR 90	Ibis Oso TR GX AXS
Suspension
Front travel	180 mm	140 mm	160 mm	160 mm
Rear travel	165 mm	130 mm	150 mm	150 mm
Drivetrain
Lowest gear	18.0 in	19.0 in	18.0 in	18.0 in
Highest gear	93.5 in	98.6 in	93.5 in	93.5 in
Wheels
Wheel configuration	Different sizes	Same size	Different sizes	Different sizes
Cockpit
Shifting	Mechanical	Mechanical	Mechanical	Electronic
Derailleur hanger	Not informed	Not informed	Not informed	UDH
Other specifications
Wheel size	29″ / 27.5″	29″	29″ / 27.5″	29″ / 27.5″