Ostro Gravel Frameset

FactorOstro Gravel Frameset

If riding fast off-road is what fulfils your thrill-seeking side, you can’t go wrong with theFactorOstro Gravel Frameset. With a gravel-specific geometry, it handles rough stuff beautifully, even at higher speeds, remaining quick and agile in a race pack, but also confidence-inspiring when terrain turns technical. The carbon frame and forks provide a lightweight base from which to build your ideal gravel race bike; just pickcomponents and wheelsto suit your needs and get set for fun.

Aero-Optimised for Real-World Gravel Racing

Borrowing technology from the aero-road OSTRO VAM, the OSTRO Gravel applies a ‘zoned aero’ approach: the front of the bike is optimised for airflow, while the rear focuses on lightness and ride quality. Factor’s engineers spent extensive time refining the head tube shape, reducing drag at typical gravel speeds and manipulating airflow around the frame. The result? A frameset that saves minutes, not seconds, getting you to the finish line faster in real-world racing conditions.

Versatile Geometry and Tyre Clearance

With 45mm tyre clearance on both 700c and 650b wheels, the OSTRO Gravel frame and forks can handle the muddiest, roughest, and most technical terrain. The steering geometry is designed around tyre size, ensuring precise handling whether using a 32mm all-road tyre or a 43mm gravel tyre. A lower bottom bracket, short chainstays, and optimised head tube angle provide a nimble, responsive ride without sacrificing stability, even on challenging off-road courses.

UDH Compatible

The OSTRO Gravel Frame features a Universal Derailleur Hanger (UDH), perfect for fitting the latest SRAM 13-speed XPLR wireless groupsets while protecting your drivetrain in crashes.

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