Factor Aluto Gravel Bike Review: David Millar’s Ride
Factor’s new Aluto gravel bike arrives at Unbound Gravel 2025, promising a versatile, lightweight ride. Designed with a focus on handling and responsiveness, the Aluto will be put to the test by David Millar himself during the grueling race. The bike’s design emphasizes both carbon fiber layup and geometry, resulting in what Millar describes as “luminous” handling. Accommodating up to 47mm tires, the Aluto presents a playful ride compared to its predecessor, making it an exciting entry in the gravel bike segment. News Directory 3 reports live from Emporia, where the unveiling happened. Stay tuned as we follow Millar’s progress and discover the full extent of the Aluto’s capabilities. Discover what’s next for the Aluto in the field!
Factor Aluto gravel bike Debuts at Unbound Gravel 2025
Updated May 31, 2025
Emporia, Kan. — As thousands of cyclists gather in Emporia for Unbound Gravel 2025,Factor has unveiled its new Aluto gravel bike. Brand Director David Millar is slated to ride the Aluto in the race.
The Aluto aims to be a versatile machine, balancing weight and handling. Millar emphasized the bike’s “luminous” handling, attributing it to both the carbon fiber layup and geometry. He even offered a test ride, confirming the aluto’s agile handling and comfortable ride.

The bike accommodates up to 47mm tires, though Millar has squeezed in 48mm Rene Herse Oracle Ridge tires. Initial impressions suggest the Aluto offers a more forgiving and playful ride compared to Factor’s Ostro Gravel race bike.
Factor’s internal description for how it handles is ‘bright’, and that it comes courtesy of the carbon fibre layup just as much as its geometry.

What’s next
Millar will compete in Unbound Gravel 2025 on the Aluto, providing real-world testing for factor’s new gravel bike design.
