2026 Factor Ostro Gravel Road Frameset
If riding fast off-road excites you, the Factor Ostro Gravel Frameset is your ultimate choice. Its gravel-specific geometry ensures agility and speed in a race pack while remaining stable and confidence-inspiring on technical terrain. The lightweight carbon frame and OSTRO Wide Stance Fork provide a perfect foundation to build your ideal gravel race bike.
Integrated Bar-Stem Sizing
- 49cm: Bar width 38cm / Stem length 90mm
- 52cm: Bar width 38cm / Stem length 90mm
- 54cm: Bar width 40cm / Stem length 100mm
- 56cm: Bar width 40cm / Stem length 100mm
- 58cm: Bar width 40cm / Stem length 110mm
- 61cm: Bar width 40cm / Stem length 110mm
| Frame | TeXtreme®, Toray®, Nippon Graphite® Pitch-Based Fiber |
|---|---|
| Fork | OSTRO Wide Stance Fork |
| Seatpost | 0 and 20mm setback available (post not included) |
| Barstem | Black Inc Integrated Aero Barstem, Reach 80mm, Drop 120mm. Multiple stem lengths and bar widths available |
| Headset | CeramicSpeed SLT 1.5″ bearings |
| Head Tube Diameter | 1.5″ upper and lower |
| Saddle Rail Clamps | 7x7 and 7x9 |
| Bottom Bracket | CeramicSpeed T47A Aluminium cups / CeramicSpeed bearings available for DUB, 24mm, or Ultra-Torque |
| Cable Routing | Internal |
| Compatible Components | Electronic |
| Brake Type | Disc |
| Max Rotor Size | 160mm front & rear |
| Max Chainring | 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 |
| Weight | 950g |
| Manufacturer Warranty | Limited Lifetime Warranty |
Specifications are subject to change without notice. Final build details may vary by frame size and market.
