The ELARA, built for going very fast on gravel.

Factor designed the ELARA specifically for the sharp end of gravel racing — a true race bike that brings road-bike responsiveness and aerodynamic efficiency to rougher terrain.

This complete build pairs the ELARA's lightweight monocoque carbon chassis with SRAM RED E1 XPLR AXS, giving you a premium 1×13-speed electronic drivetrain with a wide 10–46T cassette and integrated power meter.

The 44T chainring and 10–46T cassette provide a 460% gear range: enough top-end for fast sections while retaining the low gears needed when the road points upwards. SRAM's RED XPLR rear derailleur is purpose-built around the 10–46T 13-speed cassette and uses a Full Mount, hangerless interface for precise shifting and improved impact resistance.

At the front, SRAM's RED XPLR crankset uses lightweight hollow carbon arms and a direct-mount chainring, with the power-meter version providing integrated power measurement without adding another component to the cockpit.

The ELARA itself is built around a true monocoque carbon construction, with road-derived geometry, tight chainstays and an 80 mm bottom-bracket drop. Tyre clearance reaches up to 57 mm / 2.2" with a 1× drivetrain, allowing the bike to maintain race-bike handling while running substantially larger tyres when conditions demand it. Factor also claims a 5–8% reduction in drag coefficient versus the previous OSTRO Gravel.

Build Specifications

• Frame: Factor ELARA carbon
• Groupset: SRAM RED E1 XPLR
• Drivetrain: 1×13-speed
• Crank: SRAM RED XPLR, 44T, with power meter
• Cassette: SRAM RED XPLR, 10–46T
• Brakes: SRAM RED hydraulic disc
• Rotors: 160 mm
• Cockpit: Factor integrated AB07 Aero Barstem
• Seatpost: Factor ELARA carbon
• Wheelset: Selectable
• Tyre clearance: Up to 57 mm / 2.2" with 1×
• Bottom bracket: T47A threaded
• Rear derailleur interface: UDH / Full Mount

Fast Gravel. No Apologies.

The ELARA isn't designed to make gravel more comfortable. It's designed to let you carry speed when the surface gets ugly.

With RED XPLR AXS, integrated power measurement, a 1×13 drivetrain and Factor's most race-focused gravel chassis, this is a complete build for riders who want their gravel bike to behave like a race bike — because that's exactly what it is.

Geometry

All dimensions in mm unless otherwise specified.