David Millar and Factor celebrate their long partnership with the OSTRO VAM David Millar Edition in a special Rose Gold. The elegant design is simultaneously bold and understated, using a unique process to create a graphic that mirrors the golden hour before sunset. Available with new Campagnolo build options. Limited Edition, reserve your exclusive colourway now.
£8,999.00 – £11,999.00Price range: £8,999.00 through £11,999.00
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Extremely limited edition with only one of each frame size available in the UK. Fill out the form below to reserve your frameset or complete build option.

Elegance and speed personified
The goal behind the design was to create something elegant and timeless without being overly complex. The result had to be something that could stand the test of time, yet at the same time stand out from the crowd without being loud. The Rose Gold graphic with the addition of the dash of jade accenting the fork stands out while accentuating the engineering. The effect highlights the shapes and the framework. David says: “In the golden hour in the morning or evening, it’s magical the way it lights up. It really changes and becomes this sculpture.”
A pure racing machine
The OSTRO VAM is engineered for peak performance, combining lightweight construction with exceptional aerodynamic efficiency. Utilising our premium carbon frame, this bike excels in both climbing and flat terrains, ensuring the ultimate performance in all road situations. The integration of the Black Inc. Barstem enhances its aero profile, while the CeramicSpeed SLT Bearings ensure smooth and effortless maintenance. Every aspect of the bike is designed to optimise speed and agility, making it ideal for competitive racing.
To start your journey and order your new bike with Vires Velo, follow the steps below or just contact our team now to get started.
If you require a bike fit with us, this can be booked here. Once your bike fit is complete we will use your data to determine your spec and final set-up.
Your new bike options:
Extremely limited edition with only one of each frame size available in the UK. Fill out the form below to reserve your frameset or complete build option.

Elegance and speed personified
The goal behind the design was to create something elegant and timeless without being overly complex. The result had to be something that could stand the test of time, yet at the same time stand out from the crowd without being loud. The Rose Gold graphic with the addition of the dash of jade accenting the fork stands out while accentuating the engineering. The effect highlights the shapes and the framework. David says: “In the golden hour in the morning or evening, it’s magical the way it lights up. It really changes and becomes this sculpture.”
A pure racing machine
The OSTRO VAM is engineered for peak performance, combining lightweight construction with exceptional aerodynamic efficiency. Utilising our premium carbon frame, this bike excels in both climbing and flat terrains, ensuring the ultimate performance in all road situations. The integration of the Black Inc. Barstem enhances its aero profile, while the CeramicSpeed SLT Bearings ensure smooth and effortless maintenance. Every aspect of the bike is designed to optimise speed and agility, making it ideal for competitive racing.
To start your journey and order your new bike with Vires Velo, follow the steps below or just contact our team now to get started.
If you require a bike fit with us, this can be booked here. Once your bike fit is complete we will use your data to determine your spec and final set-up.
Your new bike options:
Available for delivery directly to you in a secure bike box with little reassembly required
All bikes are custom built to your spec, create your dream build with us
Factor offer a limited lifetime warranty on all frames and forks to the original owner
When the most important aspect of performance is everything – aero, lightness, comfort, handling – the OSTRO is the answer. If pros were limited to one bike to ride all year, they’d all choose the OSTRO in a heartbeat.
Discover everything you need to know to about the Factor OSTRO.
Discover OSTRO
All bikes ordered through Vires Velo are custom built for you
We don’t do a ‘stock’ build, order your new Factor with us and we’ll build your bike to fit you and the type of riding you do. Choose your perfect complement of groupset, gearing options, barstem size, seatpost setback and much more. Your bike will be built by our team of highly skilled mechanics at our HQ in Norfolk.
Configure your dream bike using our Bike Builder now.
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