Description
Factor O2 VAM Force AXS Road Bike
Low in weight, high in aero efficiency and with responsive stiffness from frame and forks, the Factor O2 VAM Force AXS Road Bike is the ideal machine for chasing KOMs, taking on mountainous Grand Fondos in the mountains and bringing a smile to your face as you drop race rivals on steep pitches. And with smooth wireless shifting from Force AXS plus a built-in power meter, you'll always be one step ahead of the chasing pack.
Born to Climb – Lightness Without Limits
The O2 VAM was designed from the ground up for pure climbing performance. It sits among the lightest disc brake bikes ever built – yet remains fully aerodynamic. Constructed using ultra-high-grade carbon fibre and a new manufacturing process developed in Factor’s own factory, the O2 VAM achieves an unrivalled stiffness-to-weight ratio. Every pedal stroke translates directly into forward motion, making long climbs feel smoother and faster than ever before.
Aerodynamics That Defy Gravity
Unlike traditional climbing bikes, the O2 VAM doesn’t sacrifice aero gains for lightness. Its meticulously optimised tube shapes reduce drag so effectively that, in the wind tunnel, it’s only 5 watts behind the OSTRO VAM – the fastest aero bike in the world. Across all wind angles, the O2 VAM cuts aerodynamic drag by 50% compared to its predecessor. It flies uphill and still outpaces many dedicated aero models on the flats.
Unrivalled Stiffness and Handling Precision
Factor’s engineers ensured the O2 VAM handles as brilliantly as it climbs. Sharing its geometry with the OSTRO VAM, this bike offers razor-sharp handling, confidence-inspiring cornering, and exceptional stability on high-speed descents. Its incredible stiffness means explosive acceleration when you stand on the pedals, while the new Black Inc 28//33 wheelset adds featherweight performance and aerodynamic balance. Combined with 32mm tyre clearance, the O2 VAM adapts perfectly to any road condition without compromising efficiency or control.
Integrated Bar-Stem
- Frame size 49cm: Bar width: 38cm /Stem length: 90mm
- Frame size 52cm: Bar width: 38cm /Stem length: 90mm
- Frame size 54cm: Bar width: 40cm /Stem length: 100mm
- Frame size 56cm: Bar width: 40cm /Stem length: 100mm
- Frame size 58cm: Bar width: 40cm /Stem length: 110mm
- Frame size 61cm: Bar width: 40cm /Stem length: 110mm
Technical Specification
| Frame | O2 VAM TeXtreme®, Toray®, Nippon Graphite® Pitch-Based Fibre |
| Fork | Factor O2 VAM Aero fork |
| Headset | CeramicSpeed SLT 1-1/8″ and 1-3/8″ bearings |
| Axles | Front Axle, 12 x 100mm thru-axle - Rear Axle, 12 x 142mm thru-axle |
| Rims/wheels | Black Inc 28|33 Wheelset |
| Hubs | Front/Rear |
| Bearings | CeramicSpeed" |
| Spokes | Black Inc Straightpull Aero Carbon Spokes |
| Tyres | Goodyear Eagle F1 R Tube Type |
| Crankset | SRAM Force AXS E1 DUB Power Meter Chainset |
| Chainring(s) | 48/35 |
| Bottom Bracket | CeramicSpeed T47A |
| Chain | SRAM Force E1 12/13-Speed Flattop with PowerLock |
| Front Derailleur | SRAM Force AXS E1 Front Derailleur |
| Rear Derailleur | SRAM Force AXS E1 Rear Derailleur |
| Cassette | 10-33 |
| Shifters | SRAM Force AXS E1 Shift/Hydraulic Disc Brake Levers |
| Handlebar and Stem | Black Inc Integrated Barstem Reach 80mm, drop 120mm. Multiple stem lengths and bar widths available - contact us for more details |
| Grips/Tape | Factor Bar Tape |
| Brake Levers | SRAM Force AXS E1 Shift/Hydraulic Disc Brake Levers |
| Brakes | Front Rotor 160mm - Rear Rotor 160mm |
| Saddle | Selle Italia SLR Carbon Rail Saddle L3 |
| Seat Post | O2 VAM Seatpost Topper - 3 Lengths - 0 and 25mm setback available - contact us for more details |
| Battery | SRAM AXS Battery |
| Charger | SRAM AXS Battery Charger |
| Max tyre clearance | 32mm measured |
| Accessories & Extras | Black Inc V10 Barstem Computer Mount, Spare Rear Mech Hanger |
Size Guide
Factor O2 VAM Force AXS Road Bike Sizing
Delivery & Returns
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Why buy your bike from Sigma Sports?
Don't hesitate to reach out to us. It's our goal to answer all of your questions and offer the best advice from our experts. We’ll be happy to answer any questions you may have. Contact us now or visit us in-store.
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Choose between Free Bike Delivery - to your home or place of work - or our new Premier Bike Delivery Service £99.99 and have your bike delivered "ready to ride" and set up to your measurements with seatpost and pedals adjusted on arrival by a qualified bike mechanic. Either way, our Customer Care team will be in touch to arrange a delivery date to suit you.
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