Now available


They call the Ostro an ‘everything’ bike and we agree. It’s light, smooth and aero, so it’s ready for dream trips to the mountains or to the cobbled Classics, for long weekend rides or fast-paced chaingangs, and it especially loves to be raced. It can take tyres up to 32mm, so it’s ready for Britain’s rougher tarmac.

Purchase the OSTRO VAM in Factor’s premium specification which includes the beautifully integrated barstem from Black Inc in your choice of size, mid-depth aero seat post in zero or 25mm offset and CeramicSpeed’s silky smooth bearings in the bottom bracket and headset. Factor designs the frame and components to work in harmony. With the frameset package you can retain the intended design of the OSTRO and choose your own wheelset for your build.

Electronic shifting only: to save weight and aero drag, and in line with customer wishes, the OSTRO is built for electronic groupsets only
T47 bottom bracket: thread-fit BB standard gives a secure fit and makes maintenance easier

Three fork offsets: ensuring every customer enjoys optimised handling characteristics, the OSTRO uses three different fork offsets across the size range compared to the industry standard of two

OSTRO seatpost: the mid-depth aero profile and lightweight seatpost is offered with a choice of 0 or 25mm setback
Cockpit choice: the OSTRO is compatible with the one-piece Black Inc Barstem as well as conventional separate bars and stems. When using separate components, the cables enter the frame below the stem

Factor standard geometry: the handling and fit geometry of the OSTRO are both near identical to the O2 and O2 VAM, which makes it easy for the pros to switch between models and eliminates that issue when you’re choosing which Factor to buy.

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