Ibis OSO
Ibis OSO
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Usually ready in 2-4 days
Oso

A whole new sport calls for a whole new bike. The full-carbon-fiber Oso features a dw-link rear suspension that optimizes efficiency and control, pairing 155mm of rear travel with 170mm up front. Powered by a Bosch Performance Line CX motor and a 750 Wh battery, the Oso delivers exceptional performance on any terrain—making every ride feel like it’s downhill both ways.
Component | Standard Component | Upgrade / Option |
---|---|---|
Fork | Fox Performance Series, Float 38, 170mm, 29”, 110mm x 15mm | |
Shock | Fox Performance Elite Series X2, 205mm x 60mm | |
Motor | Bosch Performance Line CX | |
Wheels | Blackbird Send Aluminium Rims, Ibis Hubs, SM-MD: 29”/27.5”, LG-XL: 29” | |
Front Tire | Maxxis Assegai, 29” x 2.5”, 3C MaxxGrip, DH, TR | |
Rear Tire | Maxxis Minion DHR II, 29” x 2.4”, 3C MaxxGrip, DH, TR
Size SM–MD comes with a 27.5x2.4" rear tire. |
|
Brakes | Shimano XT, M8120, 4 piston | |
Rotors (F/R) | Shimano SM-RT66, 220mm | |
Crankset | SRAM X1 E-MTB, 34t Steel Ring | |
Rear Derailleur | SRAM GX, Eagle Transmission | |
Shifter | Eagle AXS Controller | |
Cassette | SRAM GX, Eagle Transmission, 10–52T | |
Chain | SRAM GX, Eagle Transmission | |
Chain Guide | Ibis Top Guide | |
Headset | Cane Creek 40 ZS44/ZS56 | |
Grips | Lizard Skin Charger EVO | |
Handlebar | Blackbird HiFi Carbon, 31.8mm, 30mm Rise, 800mm | |
Stem | Ibis 31.8mm
S–M: 40mm, L–XL: 50mm |
|
Seatpost | Bike Yoke Revive Dropper 31.6mm
S: 125mm, M: 160mm, L: 185mm, XL: 213mm. Note there is a 250lb rider weight limit on this post. |
|
Saddle | SDG Bel-Air, V3 |
Images may not show actual build kit content. Pricing and specifications subject to change without notice. All prices are ex‐works Santa Cruz, CA. MSRP prices are US suggested retail prices and are exclusive of sales tax or VAT.
Geometry
The Oso is your trail companion, giving you supernatural climbing and descending ability that changes everything. Available in 4 sizes with amazing standover clearance and a long dropper post, you can comfortably get down almost anything. The slack 64-degree head angle and long wheelbase bring a new level of confidence to your off-road adventures.

Clean Interface
- Controller is integrated into the top tube, reducing cable clutter.
- Low-profile wireless SRAM GX-Transmission shifting.
- Now featuring the bar mounted Bosch wireless mini-remote.

Upgraded Frame Protection
- Beefed up downtube and motor guards—they’re thicker, stronger, and provide more protection.
- Backward compatible for all Oso customers.
-
Pre-wired to accept the included 900 lumen Lupine SL F Nano front light. (Installation required.)
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Comes installed with a 45 lumen Lupine C14 taillight (combination seat collar + rear light combo).

Suspension
- Compatible with select air and coil shocks from Fox, Marzocchi, EXT, DVO, and Ohlins.
- Installing a 205x65mm trunnion shock provides 170mm of rear travel.
- The stock shock can be reconfigured to 65mm stroke during a normal shock service at Fox Factory or a Fox authorized service center.
- Compatible with up to 190mm single-crown or dual crown fork.

Why Bosch?
The Bosch Performance line CX has a quiet, powerful 85 NM drive unit, which offers the most natural-feeling acceleration since the invention of gravity. On top of that, you get Bosch’s two-year warranty, a network of 2,400 dealers across the U.S., UL safety-certified batteries, and its carbon-neutral operations. So, in case you were wondering, that’s why we went with Bosch.

Big Battery, Big adventures
- 750Wh battery for big adventures.
- How far can I go ?
- Powerful and durable Bosch CX Performance motor rules the hills with just the right level of assistance exactly when you want it.

Parts chosen for performance and durability
- Shimano XT brakes with 220mm rotors for confidence inspiring braking.
- SRAM Wireless GX Transmission delivers precision shifting under load.
- Gravity casing tires and durable wheels ensure reliable performance for enduro-level e-bike use.
- The Fox 38 Performance fork and X2 shock keeps it smooth and under control on the roughest of descents.
- The award winning Bike Yoke Revive dropper post is widely acclaimed as one of the best and most durable droppers available.

Warranty
- Lifetime frame warranty.
- Lifetime bushing warranty.
- Two year Bosch warranty.
Pick Your Size
170mm Fork (583.7mm axle to crown)
Nominal Size | SM | MD | LG | XL | |
---|---|---|---|---|---|
Seat Tube Length | A | 15.5 | 16.3 | 16.3 | 16.8 |
Top Tube Length | B | 22.6 | 23.9 | 25.1 | 26.3 |
Head Tube Length (4mm stack of lower cup not included) | C | 3.5 | 4.2 | 4.8 | 5.5 |
Chainstay Length | D | 17.3 | 17.3 | 17.5 | 17.5 |
Seat Tube Angle | E | 77° | 77° | 78° | 79° |
Head Tube Angle | G | 64° | 64° | 64° | 64° |
Wheelbase | H | 47.5 | 48.9 | 50.9 | 52.8 |
BB (L/XL with Maxxis Minion 29x2.5WT tires, S/M with 27.5x2.5WT rear tire). | 13.4 | 13.4 | 13.4 | 13.4 | |
BB Drop | K | 1.2 | 1.2 | 1.2 | 1.2 |
Stack | I | 24.4 | 25 | 25.6 | 26.2 |
Reach | J | 16.9 | 18.1 | 19.7 | 21.3 |
Saddle Height | F | 25.8 | 27.8 | 30.1 | 32.3 |
Standover | 26.7 | 28.1 | 28.7 | 28.8 | |
Trail | 5.2 | 5.2 | 5.2 | 5.2 |
L/XL comes with Maxxis Minion 29x2.5WT tires, S/M comes with a Maxxis Minion 29x2.5WT front tire and a 27.5x2.5WT rear tire.