An ELARA closeup in Virescent Blue ridden on a moody gravel path. Darker tones of the path make the bike colour stand out.

ELARA

The Purest Expression of Fast Gravel

Gravel racing. Just the term should tip you off that things have changed from the early days of putting wider treaded tyres on dropbar bikes. If gravel used to be a fun way to get off the roads and explore wilder landscapes, it has now evolved into a myriad of riding styles all with their own tech demands. Gravel, fast gravel, is now as competitive as WorldTour racing, with nearly the same level of top speeds required to win.

The ELARA has been designed for the fastest gravel races in the world, the UCI Gravel World Series, the Gravel Earth Series, the World Championships, and every event where seconds, handling, and marginal gains decide outcomes. It’s where the sport is becoming sharper, faster, and more competitive. The ELARA was conceived to meet that challenge: a gravel race bike designed to be the fastest bike on the roughest ground.

The Purest Expression of Fast Gravel

PLATFORM CLASSIFICATION:

High-speed gravel race system - the purest expression of fast gravel

DEVELOPMENT OBJECTIVE:

Bring road-level race speed to gravel's most competitive arena - the fastest bike on the roughest ground, without compromise.

Video poster

Design Evolving with Function

Across all disciplines, Factor’s advantage is a willingness and ability to make fundamental changes to designs even when deep into the development process. The ELARA design process is a prime example. What may have started as an OSTRO Gravel update quickly morphed into a complete redesign. If our engineers and industrial designers hold the key to the process, it’s because they also listen to the rider feedback to provide essential guidance. For the ELARA, Magnus Bak Klaris, 2025 Gravel Earth Series winner, provided the crystal-clear input that completely reset the design brief.

It became clear that the ELARA needed to support the option of running 57 mm tyres front and rear, something the engineers initially considered excessive for a high-speed race bike. But at the speeds these riders hold, the impacts are amplified. Larger tyres don’t just absorb shock, they reduce rolling resistance across broken surfaces and drastically lower the risk of punctures. This feedback sent the Factor engineering team back to the drawing board and within four months, a full prototype was ready for race-testing, the result was a gravel bike that Magnus Bak and Romain Bardet reported to be noticeably faster. The 57 mm clearance was locked in, and the frame had evolved into something radical: a fast, race-focused design that fits 2× drivetrains, while keeping the thoroughly Factor handling.

"It's not about comfort; it means I don't have to slow down. I can hold speed without thinking."

Magnus Bak, Factor Racer

"We'll redesign eighty percent of a bike six months into the design phase if that's what it takes… that's what makes Factor unique."

Mike McGinn, Factor Industrial Designer

Engineered for high-speed stability

Since the ELARA geometry takes its cues from Factor’s road platforms, it succeeds in keeping the handling sharp and responsive while pairing the frame with 57 mm (2.2-inch) tyre clearance. This wide tyre clearance is not to add adventure to the mix; it’s designed specifically so the rider can keep the speeds super-high even in the midst of the rockiest conditions. With head tube angles ranging from 71.3 to 71.5° and offsets that yield a trail of 61 mm, the ELARA’s handling hits the sweet spot for agility off-road. The tight chainstays, ranging between 420 mm on the smaller sizes to 425 mm on the larger, contribute to the snappy handling, while an offset seat tube junction allows the rider to run 57 mm tyres with a 1x setup.

The geometry works with this setup thanks to the longer reach, reduced trail and lower bottom bracket compared to its predecessor. This is key for the handling, especially with the larger tyres. It helps to manage the center of gravity and plants the rider better within the bike. The position feels familiar for a road racer while remaining composed over gravel. The high-speed stability coexists with intuitive agility. Using a true monocoque mould, not a front triangle bonded to the rear stays, the lay-ups are tuned around torsional stiffness and impact control rather than comfort curves. The frame is lighter than its predecessor yet measurably stiffer at the bottom bracket and head tube junctions.

5–8% lower drag coefficient vs OSTRO Gravel

Up to 57 mm (2.2-inch) tyre clearance with 1×

Sub-1100 g frame (Size M, painted)

Video poster

UDH / direct-mount rear derailleur hanger

Two in-triangle bottle mounts + top-tube feed port, under downtube

In-frame storage in the down tube

Race-fit inspired by Factor road geometry

Tight chainstays for snappy handling across all sizes

71.5° head tube angle (size M)

80 mm bottom-bracket drop (82 mm on size 49 and 52)

1× and 2× compatible (electronic; SRAM, Shimano, Campagnolo)

T47A internal threaded bottom bracket

Close-up drivetrain side view of the ELARA aero fork, with Black Inc 64 Gravel wheels. Dark lighting highlights the frame.

Factor-engineered full-carbon fork

Taking inspiration from the radical ONE aero fork, the deeper profile of the ELARA carbon fork enhances the aerodynamics of this leading edge while increasing the stiffness levels to help keep the handling solid and sharp.

Head-on view of the ELARA in Virescent Blue with Black Inc cockpit. The hourglass head tube and aero fork also feature.

Black Inc Aero Gravel Bar AB07

The new Black Inc Aero Gravel Bar AB07 was developed in parallel: a one-piece cockpit with subtle flare, integrated computer mount, and internal hose routing. Mounting and cable routing remain clean and serviceable, Factor’s philosophy of engineering elegance over hidden complexity.

Side view of the ELARA front end highlighting the Black Inc 64 Gravel front wheel.

Black Inc Gravel Wheels

Black Inc SIXTY FOUR Gravel wheelset offers an elite level of aerodynamic performance that combines with the ability to mount extra wide tyres to make these wheels the perfect choice for the most important gravel races on the calendar. (Minimum tyre size 47 mm.)

Drivetrain side view in chiaroscuro lighting of the ELARA in Virescent Blue to highlight the frame’s monocoque construction.

True monocoque frame

The ELARA’s one-piece construction allows for chainstays thin enough to be cleared by a 57 mm tyre carcass, a 52T 1x chainring as well 47 mm tyres in 2x setups with front derailleurs. The resulting frame requires less material and consequently lighter than frame constructions that bond a front triangle to rear stays.

Quarter-turn drivetrain side view of the ELARA in Virescent Blue complete with Black Inc 64 Gravel wheels. Dark lighting.

Road-derived geometry

Firmly positioned in the fast gravel category, the ELARA offers road bike style responsiveness and agile handling even over rough courses ridden at speed. Longer reach and steeper seat tube angle brings the rider more forward into a more aggressive position. Steep head tube angle and tuned trail ensure agility while the chainstay length keeps the bike snappy and responsive.

Full frontal view of the ELARA in Virescent Blue highlights the aero shape of the fork. Dark background.

Data-validated aerodynamics

The front triangle draws from Factor’s ONE and OSTRO VAM programs, planar fork integration, a narrow hourglass head-tube, and refined leading-edge transitions around the downtube and bottle zones. CFD validation confirms measurable drag reductions with 45–57 mm race tyres, delivering aero efficiency on par with modern road frames.

Make it yours

The new definition of fast gravel.
Split shot with a riding image at the top and a drivetrain side view of the ELARA in Virescent Blue below. Dark lighting.
VIRESCENT BLUE

READ MORE

Deep dive into ELARA with these long reads.