Ibis Oso S (Short Travel) | Bosch CX Gen 5 | 130mm
The Oso S (frequently referred to as the "Short Travel" or "Sport" model) is built on the same unified chassis as its big brothers but utilizes a specific short-stroke shock mount and clevis to achieve 130mm of rear travel. This geometry creates a steeper, more responsive bike that climbs efficiently and snaps out of corners, making it a "sportier" and more engaging ride for typical UK trail centre conditions.
Efficiency vs. Travel: While the HD/TR models are designed to "smash," the Oso S is designed to "flow." If your local rides include long fire-road climbs and fast, groomed singletrack, the S will feel significantly more alive and responsive under your legs.
The "One-Bike" Potential: Because it shares the modular chassis, you aren't locked into 130mm forever. If you move closer to a bike park in the future, you can buy the longer clevis/shock link from Ibis and convert the "Sport" into an HD (165mm) enduro monster.
EVO Opinion:
The Ibis Oso S (Short Travel) is the most agile, "sporty" iteration of the 2026 modular Oso platform. Designed to offer the most "analogue-like" feel in the e-MTB range, it swaps the heavy enduro focus of the HD and TR models for 130mm of rear travel and a lighter overall build. It is the perfect choice for riders who prefer fast, flowy singletrack over high-speed rock gardens.
Bosch CX Gen 5 Motor: The lightweight, compact drive unit is ideal for the S model, providing immediate, responsive power that feels less like a shuttle and more like a turbo-charged trail bike.
Low-Slung Weight: By using the standard 600Wh battery mounted low in the chassis, the Oso S retains a low centre of gravity, making it significantly easier to flick through technical turns or loft over trail obstacles than the HD/TR variants.
Optimised Kinematics: The DW-Link suspension is tuned here for a "poppy" feel. It is less about absorbing massive hits and more about maintaining speed, offering excellent mid-stroke support for pumping through rollers and berms.
Streamlined Build: Typically available in lighter-weight build kits, the S focuses on efficiency, often paired with slightly narrower tyres and lighter wheels to minimize rotational mass.
Modular Geometry: Like the HD and TR, the S features adjustable dropouts (440mm–465mm) to fine-tune stability versus agility.
PowerMore Ready: The frame is compatible with the Bosch PowerMore 250Wh range extender, allowing for a total of 850Wh if you decide to take the "sport" bike on an all-day alpine epic.
Refined Cockpit: The shorter travel allows for a lower stack height, giving the rider a more aggressive "attacking" position that feels natural for fast-paced XC/Trail riding.
Minimalist Aesthetics: The Oso S uses the cleanest cable routing in the Ibis range, with an integrated headset that keeps the bar area uncluttered and quiet.
| Specification | Detail | Notes |
| Frame Material | Carbon Fibre (Modular) | Lifetime frame & bushing warranty. |
| Motor | Bosch CX Generation 5 | High-torque; rapid acceleration. |
| Battery | Bosch PowerTube 600Wh | Removable; PowerMore 250Wh ready. |
| Rear Travel | 130mm | DW-Link; optimised for XC/Trail. |
| Fork | RockShox Pike Base 140mm 29" | 140mm travel; ideal for agility. |
| Shock | RockShox Deluxe Select | 230 x 57.5mm; trail-tuned. |
| Drivetrain | SRAM Eagle 90 Transmission | Wireless T-Type options. |
| Brakes | SRAM Maven Base | 220mm Centerline Rotors (F/R). |
| Wheelset | Blackbird Send Alloy | Ibis hubs; 30mm internal width. |
| Tyres | Maxxis Dissector / Rekon | 2.4"; fast-rolling trail casing. |
| Seatpost | KS Vantage Dropper | SM�MD: 140�170mm, XM�XL: 180�210mm |
| Bar/Stem | BlackBird 35 | SM-MD: 35mm, XM-XL: 50mm |
| Weight | ~21.8kg (Size XM) | Approx. weight with sealant. |
| Specification | Detail |
| Frame Material | Carbon Fibre (Modular) |
| Motor | Bosch CX Generation 5 |
| Battery | Bosch PowerTube 600Wh |
| Rear Travel | 130mm |
| Fork | RockShox Pike Base 140mm 29" |
| Shock | RockShox Deluxe Select |
| Drivetrain | SRAM Eagle 90 Transmission |
| Brakes | SRAM Maven Base |
| Wheelset | Blackbird Send Alloy |
| Tyres | Maxxis Dissector / Rekon |
| Seatpost | KS Vantage Dropper |
| Bar/Stem | BlackBird 35 |
| Weight | ~21.8kg (Size XM) |
| Specification | Notes |
| Frame Material | Lifetime frame & bushing warranty. |
| Motor | High-torque; rapid acceleration. |
| Battery | Removable; PowerMore 250Wh ready. |
| Rear Travel | DW-Link; optimised for XC/Trail. |
| Fork | 140mm travel; ideal for agility. |
| Shock | 230 x 57.5mm; trail-tuned. |
| Drivetrain | Wireless T-Type options. |
| Brakes | 220mm Centerline Rotors (F/R). |
| Wheelset | Ibis hubs; 30mm internal width. |
| Tyres | 2.4"; fast-rolling trail casing. |
| Seatpost | SM�MD: 140�170mm, XM�XL: 180�210mm |
| Bar/Stem | SM-MD: 35mm, XM-XL: 50mm |
| Weight | Approx. weight with sealant. |