Factor OSTRO Gravel vs ALUTO: ¿qué gravel elegir?

OSTRO Gravel vs ALUTO Factor: Which gravel bike to choose?

OSTRO Gravel or ALUTO? We tell you the key differences between the two Factor gravel bikes: geometry, wheel clearance, use in competition or adventure.

OSTRO Gravel vs ALUTO Factor: Which gravel bike to choose?

Factor has taken a step forward in gravel cycling with two distinct but complementary models: the OSTRO Gravel and the new ALUTO . Both share Factor's build quality and racing DNA, but each is designed for a specific type of rider and terrain. Here's a clear comparison to help you choose.

1. Philosophy of each model

OSTRO Gravel: an aerodynamic , competition-oriented gravel bike. Inspired by the OSTRO VAM road bike, its strength lies in speed on fast tracks and in gravel events where pace counts as much as endurance.
ALUTO: a more versatile gravel bike, designed for long distances, mixed terrain and adventures where both comfort and stability matter.

2. Geometry

OSTRO Gravel: lower and more aggressive stance, compact stack, and long reach. Ideal for those seeking performance and a racing posture.
ALUTO: slightly higher stack, lower bottom bracket, and more balanced geometry. It offers greater comfort on long rides and more stability on rough terrain.

3. Wheel arch

OSTRO Gravel: accommodates tires up to 45 mm. Perfect for fast riding with 35–42 mm tires.
ALUTO: More generous wheel clearance: up to 47 mm at the rear and 52 mm at the front. Ideal for those looking to explore or run wide tires without losing control.

4. Integration and technical details

Both: internal wiring, compatibility with electronic groups, Black Inc. cockpit.
OSTRO Gravel: a more aerodynamic approach, with streamlined lines and maximum efficiency at high speed.
ALUTO: adds internal downtube storage, dropper post compatibility, and a choice of 1x or 2x drivetrains. More adventure-oriented.

5. Materials and construction

Both OSTRO Gravel and ALUTO are made with high-modulus Toray® fiber, featuring Factor's signature lamination process. In both cases, stiffness, lightness, and shock absorption go hand in hand, although the OSTRO prioritizes aerodynamics and responsiveness, while the ALUTO enhances stability and comfort.

6. Who is each one for?

OSTRO Gravel: cyclists who want to compete, ride very fast on open tracks, or who come from road cycling and want a gravel bike with a racing feel.
ALUTO: cyclists who prioritize versatility: from long rides like La Traka to light bikepacking, technical routes and adventure without sacrificing speed.

At Dog Days we help you decide

If you're torn between the OSTRO Gravel and the ALUTO, at Dog Days we can show you both, advise you on size and build quality, and help you choose the one that best suits your style. Contact us or come visit us.

OSTRO Gravel vs ALUTO: two different paths, the same passion.