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FACTOR O2

SKU: O2-Ultegra
$6,799.00 USD
In stock
Usually ships within 24 hours
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Factor O2

Pure performance, redefined.

The Factor O2 delivers the perfect balance of lightweight efficiency, stiffness, and refined ride quality. Designed to thrive on long climbs and fast descents, it’s a road racing machine that rewards every watt you put in. Built around precision carbon engineering and a geometry honed for responsiveness and control, the O2 is a modern classic — sleek, stable, and incredibly fast.

Key Features

  • Lightweight carbon frame engineered for optimal stiffness and compliance

  • Clean, aerodynamic profile with fully internal cable routing

  • Exceptional power transfer and precise handling

  • Electronic and mechanical shifting compatible

  • Hydraulic disc brake integration

  • Tyre clearance up to 30 mm for smooth, confident rides

  • Designed for all-around performance — from climbing to endurance racing

Technical Specifications

Component Specification
Frame Factor O2 full carbon construction
Fork O2 carbon disc fork
Bottom Bracket T47A threaded, CeramicSpeed bearings
Wheel Size 700c
Brake Type Hydraulic disc
Max Tyre Clearance 30 mm
Headset Integrated 1-1/8”–1-3/8”
Seatpost Factor carbon seatpost
Axles 12×100 mm front / 12×142 mm rear
Sizes 45, 49, 52, 54, 56, 58, 61
Frame Weight ~850 g (size 54)
Complete Bike Weight As low as 7.1 kg depending on build

Geometry (Size 54 cm Approx.)

  • Stack: 552 mm

  • Reach: 381 mm

  • Head Angle: 72.3°

  • Seat Angle: 73.5°

  • Chainstay: 405 mm

Why You’ll Love It

  • Ultra-clean aesthetics and race-level engineering

  • Responsive and smooth on every climb, confident on every descent

  • Perfect for riders who value speed, efficiency, and timeless design

  • Built for versatility — a bike that’s fast on race day and refined for every ride

Shipping rates and eligibility are calculated at checkout.

All bikes are professionally assembled, tuned, and carefully repacked before shipping to ensure they arrive in perfect condition.

Please note that some brands and models are not eligible for shipping due to manufacturer restrictions.

For special delivery requests or white-glove transport, please contact us for a personalized quote.

For sales inquiries or custom build consultations, reach us at info@categoryonecycles.com.

For service appointments, repairs, or bike fitting, contact service@categoryonecycles.com.

You can also reach us by phone at (610) 509-3554