Factor ALUTO Frameset Made for adventures off the beaten path, the Factor ALUTO Frameset is an ideal start from which to spec out the bike of your dreams. With a balanced geometry and space to fit up to 47mm front and 52mm rear tyres, the Aluto is an adaptable canvas upon which you can create the perfect bike to suit your specific needs and goals. Pick your preferred components and wheels, enjoy the build process and then go seek two-wheeled adventures.  Balanced Race Geometry for Maximum Agility The ALUTO’s geometry is engineered for dynamic performance across variable terrain. With short chainstays, a steep head tube, a lowered bottom bracket, and a short wheelbase, the ALUTO remains nimble and responsive, even when fitted with wide gravel tyres up to 47 mm. Compared to the OSTRO Gravel, the ALUTO offers a slightly higher stack for a more adaptable fit without compromising a race-ready position. Once built up, the result is a bike that feels light, bright, and alive - a true “pocketknife” with a razor’s edge for precision handling. Sharp Front-End Feel with Comfort and Control Factor engineers prioritised responsive yet forgiving handling, even on the roughest terrain. The minimal-design fork enhances front-end stiffness while working harmoniously with wide tyres to absorb vibrations and increase grip. The front-end carbon lay-up and tube shapes deliver a light, fatigue-resistant ride over long hours, allowing riders to maintain speed, confidence, and control across tarmac, gravel, and technical trails. Functional Integration for Long-Distance Performance Designed for endurance racing and adventure, the ALUTO frame features integrated down tube storage for tools, tubes, and essentials, eliminating the need for drag-inducing saddle or bar bags. The frame is built for electronic drivetrains with hydraulic brakes, full internal cable routing, and a UDH-compatible rear dropout, providing future-proof flexibility. Multiple mounts for bottles and bento boxes make it easy to adapt for race-day minimalism or extended gravel exploration. Integrated Bar-Stem 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