Factor Aluto Carbon Standard Package Gravel Bike Frameset

The Factor ALUTO Carbon Standard Package is a gravel bike frameset — the frame, fork, seatpost, and cockpit foundation for a build you complete with your own wheelset and groupset. It's molded from Toray and Nippon Graphite pan-based carbon fiber and paired with a Factor ALUTO carbon fork, giving you a race-proven platform to build around rather than a finished bike off the shelf.

Factor engineered the ALUTO to move between rough tarmac, gravel, and technical trail without a bike change, with tube shaping and carbon lay-up tuned to stay stiff where power transfer matters and forgiving where long days in the saddle demand it. What sets the ALUTO apart in this category is its integrated down tube storage — an aero-shaped compartment for a tube, tire levers, and a multitool that removes the need for a saddle or bar bag on long rides.

Who It's For

• Riders building a race-capable gravel bike from the frame up who plan to source their own electronic groupset and wheels

• Riders racing or riding long — built for everything from short technical gravel courses to 300km adventures

• Riders who want integrated tool storage and clean internal cable routing without a bag's added drag

• Consider a different frameset if you want a complete, ready-to-ride bike or a mechanical (non-electronic) drivetrain — the ALUTO accepts electronic shifting and hydraulic disc brakes only

What to Look For

• Drivetrain compatibility: the frame accepts electronic drivetrains only with hydraulic disc brakes — there's no provision for a mechanical shift cable

• Bottom bracket standard: the Standard Package ships without one — plan for SRAM DUB T47a or FSA (SH24) depending on your groupset

• Fit and setup: seatpost setback (0mm or 25mm) and the Black Inc Integrated Barstem (75mm reach, 116mm drop, multiple lengths and widths) both shape your position — confirm fit before ordering

Key Features

Frame and fork: Built from Toray and Nippon Graphite pan-based carbon fiber and matched to a minimal-volume Factor ALUTO carbon fork, the tube shaping and carbon lay-up deliver stiffness where power transfer counts and compliance where fatigue resistance matters on long rides.

Geometry: Short chainstays, a lowered bottom bracket, and a short wheelbase lower the center of gravity and keep handling agile despite the added height of gravel tires. Compared to Factor's OSTRO Gravel, the ALUTO runs a slightly slacker head tube angle with equally short chainstays, but a higher stack — trading a touch of the OSTRO's race-low position for a more adaptable fit.

Drivetrain and braking: The frame is compatible with 1x and 2x electronic drivetrains and hydraulic disc brakes only — no mechanical routing is provided, which keeps cable ports minimal and internal routing clean.

Tire and wheel compatibility: Maximum tire clearance is 47mm measured, with the frame's handling geometry optimized around a 45mm tire for the best balance of volume and sharp handling.

Standout technology: Integrated down tube storage holds a tube, tire levers, and a multitool without a saddle or bar bag. A UDH-compatible rear dropout future-proofs the frame for upcoming drivetrain standards, and a round 27.2mm seatpost with external clamp keeps dropper post upgrades straightforward. Multiple mounting points support bottle cages and a bento box for race day or all-day adventures.

Rider Intent Summary

• Biggest strengths: agile, balanced race geometry; integrated down tube storage; a UDH-compatible dropout for future drivetrain flexibility

• Tradeoffs: frameset only (no wheels or groupset included), and it accepts electronic drivetrains exclusively — no mechanical option

• What makes it different: down tube storage on a race-oriented frame, plus a higher stack than the OSTRO Gravel for a more adaptable fit

Victory's Take

At Victory Bicycle Studio, we see the ALUTO as the right frameset for a rider who already knows what they want in a groupset and wheels and just needs a platform that races and goes long without compromise. It's a build-it-your-way foundation, and we're set up to help you spec the rest correctly.