2026 Factor Ostro Gravel SRAM RED eTap AXS with Power Meter
Speed is your goal. Every ride, whatever the surface, faster is what counts—and this is the gravel bike you’ve been waiting for. The Factor OSTRO Gravel takes its “win everywhere” mentality from its road-racing sibling, the OSTRO VAM, and applies it to the gravel world without compromise.
Engineered to dominate its category, the OSTRO Gravel delivers class-leading aerodynamics, razor-sharp handling, exceptional stiffness, and impressively low weight. With clearance for tires up to 45mm, it is built to go anywhere—fast.
Integrated Aero Bar-Stem Sizing
- 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
| Frame | TeXtreme®, Toray®, Nippon Graphite® Pitch-Based Fiber carbon construction |
|---|---|
| Fork | OSTRO Wide Stance Fork |
| Seatpost | 0mm or 20mm setback options available |
| Bar & Stem | Black Inc Integrated Aero Barstem, Reach 80mm, Drop 120mm (multiple bar widths and stem lengths available) |
| Headset | CeramicSpeed SLT 1.5″ bearings |
| Head Tube Diameter | 1.5″ upper and lower |
| Saddle Rail Clamps | Compatible with 7x7mm and 7x9mm rails |
| Bottom Bracket | CeramicSpeed T47A aluminium cups with CeramicSpeed bearings (DUB, 24mm, or Ultra-Torque compatible) |
| Cable Routing | Fully internal |
| Compatible Components | Electronic only |
| Brake Type | Disc brake |
| Max Rotor Size | 160mm front and rear |
| Max Chainring Size | 52-tooth |
| Front Axle | 12 x 100mm thru-axle |
| Rear Axle | 12 x 142mm thru-axle |
| Wheelset | Black Inc THIRTY FOUR |
| Wheel Size | 700c |
| Max Tire Clearance | 45mm (measured) |
| Frame Weight | 950g |
| Manufacturer Warranty | Limited Lifetime Warranty |
| Groupset | SRAM RED eTap AXS with integrated power meter |
|---|---|
| Drivetrain | 1x12-speed wireless electronic |
| Crankset | SRAM RED AXS, 44T with power meter |
| Cassette | 10–46T |
| Brake Rotors | 160mm front and rear |
Specifications are subject to change without notice. Actual weights and components may vary by size and market.
