
Every tube and section of the O2 has been engineered and developed for a ProTour level quality ride: maximum power transfer under load, but also vibration dampening to feel fresh after a 6 hour ride.
The O2 does all that in style, with a slender profile that will subtly stand out in any group ride. Elegance, all-day comfort and high performance coming together.
From £3,780
For Frameset
Built to Climb
Asymmetric Oversized Downtube

Connecting the headtube to the bottom bracket and chainstays, the asymmetric downtube carbon layup is tuned for a perfect balance of torsional and vertical stiffness.
Detailed Attention to Ride Quality

Widestance Seat Stays

Stealth Seatpost Wedge

Seatpost Options

Dance Up the Mountains
Svelte Fork

Such a feat is the result of long hours of FEA (Finite Element Analysis) during the design phase, followed by numerous carbon layup prototypes and testing in the lab and on the road.
The Svelte fork uses a tapered steerer tube with a 1-3/8″lower bearing, with the crown integrated into the frame’s downtube for increased steering precision and aerodynamic gains.
The disc version of the Svelte fork largely follows the shape and size of the rim brake fork, but with a slightly asymmetric design and specific layup to withstand the disc braking forces.
Power Drivetrain

At the core of the Power Drivetrain sits the BBright bottom bracket shell. We choose BBright as it offers the widest possible BB shell for a smoother and stiffer transition from the wide, asymmetric downtube to the tall chainstays. All this while being able to lay the carbon fibre sheets smoothly in this area, with high compaction, without sharp or thin shapes that increase weight and decrease structural integrity. The asymmetric (narrower on the drive-side) BBright shell also improves clearance with small chainrings and powermeters.
A section cut of the BB are reveals the enlarge structure created by the gusseted joint between the downtube, seat tube and BB shell. The asymmet-ric, tall chainstays make use of all available volume for a more continuous blend into the BB shell, for extra stiffness at a low weight, while leaving room for 28mm tyres and large chainrings.

Developed & Tested in the Real World
Our Craft
O2 Frame Geometry

Size | 46 | 49 | 52 | 54 | 56 | 58 | 61 |
---|---|---|---|---|---|---|---|
Stack | 495 | 495 | 520 | 542 | 565 | 588 | 611 |
Reach | 360 | 367 | 376 | 384 | 392 | 401 | 409 |
Seat Tube Angle | 73 | 73 | 73 | 73 | 73 | 73 | 73 |
Seat Tube | 730 | 456 | 480 | 502 | 525 | 548 | 570 |
Top Tube Length | 507 | 515 | 535 | 549 | 565 | 581 | 596 |
Head Tube Angle | 70.5° | 70.5° | 72.2° | 73.1° | 73.5° | 73.5° | 73.5° |
Head Tube | 95 | 95 | 115 | 131 | 154 | 178 | 202 |
Fork Offset | 53 | 53 | 53 | 43 | 43 | 43 | 43 |
BB Drop | 68 | 68 | 68 | 68 | 68 | 68 | 68 |
Chainstay Length | 405 | 405 | 405 | 405 | 405 | 405 | 405 |
Brand | Model | Specification | ||
---|---|---|---|---|
Frame Set | Frame | Factor | O2 | RBi Carbon |
Fork | Factor | O2 | Svelte / Svelte Disc | |
Seat Post | Factor | Black Inc. | Zero and 25mm setback | |
Barstem | Factor | Black Inc. | Reach 80mm, drop 125mm. Multiple stem lengths and bar widths available | |
Headset | Ceramic Speed | Ceramic Speed | 1-1/8 upper and 1-3/8 lower bearings | |
BB | CeramicSpeed | PF4630 | Aluminium cups / CeramicSpeed bearings with Wheels MFG 24mm BBRight Reducers/Adapters | |
Saddle Rail Clamps | 7x7 and 7x9 | |||
Front Axle | 121mm x 12mm x 1.5mm | |||
Rear Axle | 160.6mm x 12mm x 1.5mm | |||
Brake Type | Disc or Rim | |||
Cable Routing | Internal | |||
Compatible Components | Electronic and Mechanical | |||
Color | Celestial Blue or Matte Grey |
Buying Options

Complete bike builds available and can be customised to suit you. Build your dream Factor O2 from a choice of Disc or Rim frameset, Shimano Ultegra, Dura Ace, SRAM Red or Force groupsets and Black Inc. wheelset.

Looking for a frameset only? All our bikes are available to purchase online as a frameset only package. A frameset from Factor includes: frame, forks, seatpost, Ceramic Speed headset and bottom bracket.
Need help ordering?
Choosing a new bike is a big decision but rest assured our team are on hand to answer any questions about our bikes or how to place your order.

How to Order
Our bikes can be ordered directly through our website or by speaking to a member of our team. You can choose whether you want your bike delivered to you or if you would like to collect from us. Framesets can be delivered anywhere in the UK free of charge. If you would like to order a complete bike you can have your bike built by Factor in the UK, collected or delivered, or we can ship the components for you to build locally. Our team can create a customised delivery and build solution to get you set up and riding.