Description
Factor OSTRO VAM Ultegra Road Bike
Built to dominate every ride, the OSTRO VAM Ultegra Road Bike was designed with one clear mission: to be the lightest aero-oriented bike in the professional peloton. From powering over cobbles, cresting Belgian bergs, to beating local KOMs, the Ostrom VAM delivers a responsive ride to get you ahead of the chasing pack. And with Shimano's Ultegra Di2 in charge of shifting and braking, this is a bike you'll love to ride fast.
Engineered for Speed and Versatility
Whether you’re sprinting for the line, tackling cobbled classics, or climbing alpine passes, the OSTRO VAM adapts seamlessly to every challenge. It’s not just competitive—it’s commanding. Each ride becomes a statement of speed, precision, and control, setting a new benchmark for all-around race performance.
Unrivalled Performance Backed by the Numbers
The OSTRO VAM is 250 grams lighter and 7 watts faster than its predecessor, making it a force in both aerodynamics and responsiveness. Factor’s engineers utilised advanced computer modelling to sculpt every millimetre of the frame for optimal airflow. After 40km, the OSTRO VAM leaves its predecessor and competitors far behind. The refined head tube and airfoil frame profile ensure exceptional aerodynamic gains verified through extensive wind tunnel testing. Simply put, no other bike in its class cuts through the air like the OSTRO VAM.
Revolutionary Black Inc 48|58 Wheels
Complementing the frame is the new Black Inc 48|58 wheelset, purpose-built to enhance stability and aerodynamic efficiency. With differentiated rim depths, 48mm at the front and 58mm at the rear, these wheels deliver precise handling in crosswinds while maintaining blistering straight-line speed. The 23mm internal rim width, optimised for 28mm tyres, ensures a smooth and predictable ride, while carbon fibre spokes and high-flange hubs keep weight to an astonishing 1,250g. Every component contributes to faster acceleration, superior control, and effortless climbing.
Integrated Bar-Stem
- Frame size 45cm: Bar width: 38cm /Stem length: 90mm
- 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 | Ostro VAM TeXtreme®, Toray®, Nippon Graphite® Pitch-Based Fiber |
| Fork | OSTRO Wide Stance 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 48|58 Wheelset |
| Hubs | Front, HU-08 High Flange Alloy Body WT - Rear, HU-08 High Flange Alloy Body WT |
| Bearings | CeramicSpeed |
| Spokes | Black Inc Straightpull Aero Carbon Spokes |
| Tyres | Goodyear Eagle F1 R Tube Type |
| Crankset | Shimano Ultegra FC-R8100 Chainset |
| Chainring(s) | 52/36 |
| Bottom Bracket | CeramicSpeed T47A |
| Chain | Shimano CN-M8100 XT with Quick Link 12 Speed Chain |
| Front Derailleur | Shimano Ultegra Di2 FD-R8150 |
| Rear Derailleur | Shimano Ultegra RD-R8150 |
| Cassette | 11-30 |
| Shifters | Shimano R8170 Ultegra |
| Handlebar and Stem | Black Inc Integrated Aero Barstem AB02 - Reach 80mm, drop 120mm. Multiple stem lengths and bar widths available – contact us for more details |
| Tape | Factor Bar Tape |
| Brake Levers | Shimano R8170 Ultegra |
| Brakes | Front Rotor 160mm - Rear Rotor 140mm |
| Saddle | Selle Italia SLR Carbon Rail Saddle L3 |
| Seat Post | Factor OSTRO VAM Seat post |
| Battery | Shimano Di2 BT-DN300 |
| Charger | Shimano EW-EC300 12-Speed Di2 Charging Cable 1700mm |
| Accessories & Extras | Black Inc V10 Barstem Computer Mount - Spare Rear Mech Hanger |
Size Guide
Factor OSTRO VAM Ultegra Road Bike Sizing
Delivery & Returns
Reviews
Unable to display Reviews due to Privacy Settings.
Adjust your Cookie Preferences to Opt-in "YES" to "Functional Cookies".
Q&A
Unable to display Q&A due to Privacy Settings.
Adjust your Cookie Preferences to Opt-in "YES" to "Functional Cookies".
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.
Save up to 42% with any one of our 11 Cycle to Work partners, and get the health benefits of a new bike in exchange for tax free salary sacrifice. To find out more about our various partners and how to apply click here.
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.
We've partnered with Laka to offer you 30 days free bike Insurance on your new bike purchase over £400. Click here for more info and find out how to claim.