Factor Aluto Gravel Bike

The top of the podium meets punchy endurance with Factor's racey 'all-rounder' gravel bike.

Factor Aluto Gravel Bike
Factor Bikes
Factor Aluto Gravel Bike

Meet the Aluto: the newest high-performance gravel bike from Factor. Engineered to bring the British brand’s signature sharp handling to long-distance racing, training, and exploring, the Aluto stands alongside the Factor OSTRO Gravel — not beneath it – as a supremely balanced endurance-focused machine, in contrast to the OSTRO Gravel’s singular focus on pure racing. Agile, composed, and built for the long haul, the Aluto redefines the racey all-rounder.

BUILDS FROM $6,999.00

Tag:
Frame Sizes
49, 52, 54, 56, 58, 61 cm
Tire Clearance
47 mm rear / 52 mm front
Drivetrain Compatibility
Shimano 12s, SRAM AXS
Cockpit
Black Inc HB05 Barstem
Wheels
Black Inc 34
Storage
Integrated downtube compartment
Colorways
Quattro Grey / Raptor Blue (Dakar Rally-inspired)

More About the Aluto

"We've taken Factor's signature handling and engineered it into a bike that can go further, adapt better, and still feel unmistakably Factor," said David Millar, Factor's Brand Director, before the launch. And we'd be quick to agree - the Aluto's shape is definitely in line with Factor's design language. That it stands so cohesively in the Factor range is a credit to Aluto's designer, Mike McGinn, who expanded on David's comments, saying, "One of the major highlights of the Aluto is the delicate dance and balance of all its elements. While most companies are focusing on maximum volume of tires, we're painstakingly balancing the bike to provide a ride experience that is holistic, purposeful, and absolutely high performance."

All of which is to say, the Aluto takes in a wider field of view than the OSTRO Gravel. At least, that is, if you're looking for a trail bike that's designed for gravel of all grades, from overnight, no-sleep adventures, multi-day epics and out-and-backs, to finding the fastest line on the race to the finish. Because make no mistake, this is a Factor. It wants to win.

Aluto vs. OSTRO Gravel add

In Factor's world, Aluto is the equal of the OSTRO Gravel, but it's tuned to hit different. Both embody Factor’s signature design language, but each is targeted towards a different style of gravel riding. Here's how they stack up.

Feature Factor Aluto Factor OSTRO Gravel
Ride Personality Balanced, composed, versatile Aggressive, ultra-responsive, race-focused
Ideal For Long-distance racing, training, and exploring High-speed gravel racing and fast-paced events
Handling Lively yet stable — lower BB, higher stack, steeper head Razor-sharp — lower stack, aggressive geometry
Tyre Optimisation 45 mm (47 mm rear / 52 mm front clearance) 40–45 mm (race-optimized clearance)
Comfort vs. Speed Bias Comfort-leaning without losing speed Speed-leaning without compromise
Rider Position More upright and adaptable Lower and more aggressive
Storage & Utility Integrated downtube storage + 1x / 2x compatible Minimalist race-first setup

Bottom line:

  • Choose Aluto if you want intuitive handling with extra comfort and stability for going long.
  • Choose OSTRO Gravel if you want pure, race-winning performance.

THE FINER DETAILS

Balanced Geometry for All-Day Speed
Balanced Geometry for All-Day Speed

The Factor Aluto combines sharp handling with all-day composure thanks to a considered geometry that still slays when you turn up the wick. A steeper head angle and short chainstays give the bike a lively, responsive feel, while a lower bottom bracket drops the center of gravity to keep it rock-solid on loose terrain. A slightly higher stack adds comfort and adaptability without sacrificing a race-ready fit, striking a strong balance between agility and endurance.

Optimized for Real-World Gravel
Optimized for Real-World Gravel

The Aluto is purpose-built for the demands of modern gravel riding. Its geometry is centred around 45 mm tires, with room for up to 47 mm at the rear and 52 mm at the front, giving you the traction and cushioning to handle rougher routes. Fully internal, mechanic-friendly cable routing keeps maintenance simple and the lines clean, and its compatibility with both 1x and 2x drivetrains (Shimano 12s or SRAM AXS) means you can tailor the setup to your style of riding.

Engineered Integration for Long Haul Flare
Engineered Integration for Long Haul Flare

Every detail of the Aluto has been designed to support long-distance performance without dampening the fire of fast loops. The integrated downtube storage keeps tools and essentials secure without adding clutter, while the gravel-specific Black Inc HB05 Bar/stem delivers confident control with its shallow drop, flared shape, and hidden cable ports. The result is a sleek, fully integrated cockpit and seamless shift to the frame that gives goosebumps. It's a beautiful bike.

About the brand

Factor Bikes

Performance, always performance. It's an overused word in the bike industry, if not everywhere, but Factor differentiates itself from the rest of the pack with its single-minded focus on speed. The engineering team at Factor combines decades of experience developing at the cutting edge of the sport. Factor's motto of 'Never Status Quo' is no off-the-cuff idea. It's the founding principle behind everything the brand creates.

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