Author GURU 3.0 carbon gravel bike 51 cm graphite

The Author GURU 3.0 (51 cm) combines advanced carbon technology with refined control and efficiency. The Toray T700 carbon monocoque frame offers the perfect balance of stiffness and comfort, delivering speed on tarmac and confidence on gravel.

Equipped with the Shimano GRX 825 Di2 electronic drivetrain, the bike ensures flawless shifting in all conditions. The GRX 820 hydraulic disc brakes provide smooth, powerful braking on descents and wet roads. Mavic Allroad CL wheels paired with Panaracer Gravel King SK 700×40c tires keep you rolling fast and stable on any surface.

Every detail reflects premium craftsmanship — from the carbon FSA cockpit to the Prologo Scratch M5 Space AGX saddle designed for long-distance comfort. Lightweight, elegant, and engineered for adventure, the GURU 3.0 is built for riders who expect more from every kilometer.

Technical specifications

• Frame size: 51 cm

• Rider height: 170–180 cm

• Frame: AUTHOR carbon Toray T700 monocoque gravel 700C

• Fork: AUTHOR carbon Toray T700 monocoque gravel, 12 mm axle, 1.5" tapered

• Headset: FSA Orbit C-40 1.5" tapered

• Rear derailleur: SHIMANO GRX 825 Di2

• Front derailleur: SHIMANO GRX 825 Di2

• Shifters / levers: SHIMANO GRX 825 Di2 (24-speed)

• Brakes: SHIMANO GRX 820 hydraulic disc brakes, 160 mm rotors

• Crankset: SHIMANO GRX 820-2, 48/31T (172.5 / 175 mm)

• Bottom bracket: SHIMANO BB-RS501

• Cassette: SHIMANO CS-HG710-12, 11–36 (12-speed)

• Chain: KMC X12

• Wheels: MAVIC Allroad CL 700C, 20H

• Front hub: MAVIC, 12×100 mm, 20H

• Rear hub: MAVIC, 12×142 mm, 20H

• Tires: PANARACER Gravel King SK folding 700×40C

• Handlebar: FSA Wing AGX 420 / 440 mm

• Stem: FSA NS SMR-II

• Bar tape: AUTHOR microfiber / gel

• Saddle: PROLOGO Scratch M5 Space AGX Tirox

• Seatpost: FSA K-Force SBO carbon (27.2 mm)

• Seat clamp: AUTHOR (31.8 mm)

• Wheel size: 700C

• Frame material: carbon Toray T700

• Frame type: rigid

• Colour: graphite

• Gender: unisex

• Bike weight: 9 kg (for size 54 cm)

• Purpose: gravel / road

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