OSO S

REAR TRAVEL

FRONT TRAVEL

WHEEL SIZE

SUSPENSION

OSO S

Agile, responsive, and playful, driven by the Bosch CX Gen 5 motor, the Oso S is made for tight terrain and flowing singletrack. It’s intuitive handling turns every ride into a fast, fun session on your favorite local trails.

$15,990.00

VIEW IN DETAIL

OSO S Features

Modular Chassis

Swap the shock, clevis, and fork to make any of the three travel lengths
29” and 27.5” compatible
Adjust chainstay length (see below)

Modular Dropout System

Bolt-on dropouts and brake mounts allow riders to fine-tune chainstay length and wheel size configuration.

29” rear wheel: The Oso S SM/MD/XM/LG/XL all ship with the 455mm dropout.
Both 29” dropout sizes (455mm and 465mm) will be available aftermarket.

Bosch Performance Line CX Drive Unit

Bosch’s Gen5 motor features quiet, powerful, natural-feeling pedal assist and refined torque delivery for technical terrain. Gen 5 with [Top Secret] Nm torque, and power multiplier. Supported by the trusted Bosch service network.

Kiox 400c Display

Included as standard, providing best-in-class user interface and ride metrics.

Size Specific Everything

Ensures consistent handling and ride feel across all frame sizes (SM-XL) by customizing geometry, chainstay lengths, bottom bracket heights, and suspension kinematics for every bike.

DW Link Supension

The Oso is built around the highly regarded dw-link suspension platform, known for its efficient climbing and confident descending performance. Evolving from race-proven design principles, it features a more progressive shock rate and a shorter clevis for compatibility with a wide range of coil shocks.

Size-specific kinematics ensure each frame pedals efficiently while maintaining composure, traction, and quiet performance across technical terrain.

Modular Chassis

Swap the shock, clevis, and fork to make any of the three travel lengths
29” and 27.5” compatible
Adjust chainstay length (see below)

Modular Dropout System

Bolt-on dropouts and brake mounts allow riders to fine-tune chainstay length and wheel size configuration.

29” rear wheel: The Oso S SM/MD/XM/LG/XL all ship with the 455mm dropout.
Both 29” dropout sizes (455mm and 465mm) will be available aftermarket.

Bosch Performance Line CX Drive Unit

Bosch’s Gen5 motor features quiet, powerful, natural-feeling pedal assist and refined torque delivery for technical terrain. Gen 5 with [Top Secret] Nm torque, and power multiplier. Supported by the trusted Bosch service network.

Kiox 400c Display

Included as standard, providing best-in-class user interface and ride metrics.

Size Specific Everything

Ensures consistent handling and ride feel across all frame sizes (SM-XL) by customizing geometry, chainstay lengths, bottom bracket heights, and suspension kinematics for every bike.

DW Link Supension

The Oso is built around the highly regarded dw-link suspension platform, known for its efficient climbing and confident descending performance. Evolving from race-proven design principles, it features a more progressive shock rate and a shorter clevis for compatibility with a wide range of coil shocks.

Size-specific kinematics ensure each frame pedals efficiently while maintaining composure, traction, and quiet performance across technical terrain.

Uninterrupted seat tube design maximizes insertion depths, allowing for the use of long-travel dropper posts across the entire size range.

600Wh internal battery and optional PowerMore 250Wh range extender compatible (sold separately), delivering a total capacity of 850Wh.

Low and centered battery placement improves balance and handling.
600Wh provides sufficient range for the majority of rides and a lighter system weight. Adding the PowerMore opens up longer routes and all-day epics.
A thoughtfully positioned charge port allows for use of the shortest PowerMore cable for fuss-free integration.

Fits most 2.5 tires.

If it's our fault, we'll fix it. Simple as that.
Lifetime frame warranty.
Lifetime bushing warranty.
Two year Bosch warranty.

The new Ibis Oso, a modular e-bike platform built to adapt.

OSO S GEOMETRY

140mm Fork (554mm axle to crown)

63.9-64.4° Head Tube Angle

77.7-78.9° Seat Tube Angle

456–457mm Chainstays

Measurement	SM	MD	XM	LG	XL
ASeat Tube	381	381	405	432	450
BTop Tube	579	604	624	646	665
CHead Tube	99	109	121	136	152
DChainstay	456	456	457	457	457
ESeat Tube Angle	77.7°	77.7°	77.9°	78.4°	78.9°
FSaddle Height for Seat Tube Angle	650	700	745	790	830
GHead Tube Angle	63.9°	64.7°	64.4°	64.4°	64.4°
HWheelbase	1227	1246	1276	1307	1338
IStack	614	625	634	644	656
JReach	445	467	489	513	536
KBB Drop	44	41	41	38	35
BB Height	329	332	332	335	338
LStandover	684	697	722	733	750
Dropper Post Length	140–170	140–170	180–210	180–210	180–210
Crank Length	160	160	160	160	160
Water Bottle Size	22oz	22oz	26oz	26oz	26oz

Sizing Guide (Rider Height)

S

152–168 cm

M

165–175 cm

XM

173–183 cm

L

180–191 cm

XL

188–201 cm

Setup & Dropper Insert

Setup

Oso S Setup Guides

Use the official Oso S setup guide for suspension setup, Bosch system controls, air pressure, damping and volume spacer starting points.

Oso S Setup Guide Oso Exploded Parts Diagram

Sag

Starting Setup

Fork sag 18–25% of 140mm travel

Fork sag range 25.2mm–35mm

Shock sag 25–30% of 52.5mm stroke

Shock sag range 13.25mm–15.75mm

Setup mode Set sag in open mode with riding gear on

Seatpost Dropper Insert & Saddle Height