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2023 Factor

O2 Frameset Premium

A carbon frame race frameset with hydraulic disc brakes.

Manufacturer Price

$3,999
Weight2.0 lbs (frame)  
FrameCarbon
ForkCarbon
Wheels700c
BrakesHydraulic Disc
Where to Buy
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Top Comparison
Reviews

Summary

The Factor O2 is a lightweight race bike that excels in climbing with exceptional responsiveness and handling. It offers a blend of minimal weight and some aerodynamic features, though it may feel nervous on descents and straights. While praised for its high-quality components and customization options, it comes at a premium price and has some noted drawbacks like a loud freehub and potential build quality issues.

Pros
  • Lightweight

  • Stiff and responsive

  • Excellent climbing performance

  • Sharp handling

  • High-quality components

Cons
  • Expensive

  • Loud freehub

  • Nervous handling on descents

  • Build quality issues in some cases

Key Quotes
It sounds like a climber’s dream, and on that score at least, it’s breathtakingly good.
BikeRadar logoBikeRadar
The Factor O2 VAM is for performance above all else. You can feel it—on the descents, the flats, and definitely on the climbs.
Canadian Cycling Magazine logoCanadian Cycling Magazine
It's a niche bike and it's hard to make a case for buying it over other bikes in the Factor range or the competition from other brands, but I can't help but really like it.
Cycling News logoCycling News

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road.cc
Factor O2 VAM

Mar 2024 · Stu Kerton

A master of climbing – but a bike that's also incredible fun and extremely capable everywhere else

Highs
  • Light and stiff

  • A good climber

  • Comfortable ride

  • Top-line finishing kit

Lows
  • External seatpost looks a bit bulky

Read Review

Gran Fondo Magazine
First ride review: Factor O2 VAM – Aiming for the peaks?

Dec 2023 · Calvin Zajac

The Factor O2 VAM has its sights set high, but are minimal weight and a touch of aerodynamics what it takes to make it the ultimate climbing bike?

Highs
  • The ultimate climbing bike

  • Dynamic handling and extremely fun on the climbs

  • Beautifully integrated seat post

  • Customisable paint job

Lows
  • Can’t keep up with all-rounders on the flats

Read Review

Cycling News
Factor O2 VAM review: A racy featherweight you'll buy with your heart, not your head

Oct 2023 · Josh Croxton

The price is high, but the ride performance is excellent and the buying options improve the value proposition

Highs
  • 6.7kg ready to ride (58cm)

  • Aero profiling with racy geometry

  • Stunning one-piece bar/stem

  • Comfortable yet responsive ride

  • Ample bar/stem and seatmast fit configuration at purchase

Lows
  • No power meter (on this model)

  • I struggled to get along with the stock tyres

  • Build quality issues

Read Review

Cyclist
Factor O2 VAM review

Sep 2023 · Sam Challis

The new Factor O2 VAM is a lightweight road bike with aerodynamic cues, serving as a counterpart race option to

Highs
  • Light weight

  • Good comfort

  • Responsive handling

  • Excellent finishing components

Lows
  • High price of entry

  • Tyres aren't tubeless-ready

  • Loud freehub

Read Review

BikeRadar
Factor O2 VAM SRAM Red eTap AXS review

Sep 2023 · Ashley Quinlan

Although the O2 VAM isn’t flawless, it packs an enticing punch with its premium specification and price

Highs
  • Light

  • Very stiff and responsive

  • Excellent wheelset for climbing

  • Good compliance and ride stability

Lows
  • Expensive

  • Clincher tyres don’t maximise performance with wheelset

  • One early quality issue

Read Review

Velo
Factor O2 VAM review: the lightweight sharpshooter gets an aero boost

Aug 2023 · Will Tracy

Factor has focused on aerodynamic and stiffness improvements for the Factor O2 VAM, that can be kitted out and hit the UCI weight limit.

Read Review

Bikerumor
Factor Shows Off New O2 VAM - Its Fastest Climbing Bike Yet

Jul 2023 · Jordan Villella

Factor re-examined its pure climbing machine, giving it a stiffer pedaling platform, updated geometry, and shaving weight where it matters.

Read Review

Canadian Cycling Magazine
The new Factor O2 VAM first look and ride impressions

Jul 2023 · Matthew Pioro

A climber’s bike with aerodynamics for the inclines

Read Review

Geometry
Specs
Build
Frame

Toray®, Nippon Graphite® Pan-Based Fiber

BB StandardT47, Threaded

Tire Clearance30c

ColorsMidnight Pink; Shatter Gray; Prisma Paint (+$500.00)

Fork

Factor O2 VAM Svelte / Svelte Disc

Bottom Bracket

CeramicSpeed T47a BB - Shimano

Headset

FSA 1-1/8″ upper and 1-3/8″ lower bearings

Seatpost

27.2 Round, post not included

TypeRigid

Groupset
Brakes

Disc

TypeHydraulic Disc

Rider Notes
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First added August 17

Last updated January 15

Not listed for 865 days