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2025 Author

Guru 3.0

A carbon frame gravel bike with high-end components and shimano grx 800 hydraulic disc brakes.
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Weight19.8 lbs  
FrameCarbon
SuspensionRigid
ForkCarbon
Wheels700c Aluminum
Drivetrain2 × 12 Electronic
GroupsetGRX 800, GRX Di2
BrakesShimano GRX 800 Hydraulic Disc
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Insights
Ride Feel

Based on frame geometry and build specs.

Rider Position
relaxedaggressive
Terrain
smoothrugged
Guru 3.0
Other Gravel bikes
Gearing

A bike with lower gearing will be easier to ride up steep hills, while a higher top end means it will pedal faster down hills.

Lowest gear

(climbing)

38 mph

Guru 3.0

36 mph

Similar Bikes

Highest gear

(descending)

Sizing
SM

5'2" – 5'9"

MD

5'6" – 5'11"

LG

5'9" – 6'2"

XL

6'0" – 6'5"

Rider Fit Notes

None yet.

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Geometry
Specs
Build
Frame

AUTHOR carbon Toray T700/M40 monocoque gravel (max tyre size 700 × 47C)

ColorGrey-Matt / Black

Fork

AUTHOR carbon Toray T700 monocoque gravel, 1.5" tapered

Stem

FSA NS SMR-II

Handlebar

FSA Wing AGX, 420 / 440 mm

Saddle

PROLOGO Scratch M5 Space AGX Tirox

Seatpost

FSA K-Force SBO carbon (27.2)

TypeRigid

Groupset
Rear Derailleur

SHIMANO GRX 825 Di2

Front Derailleur

SHIMANO GRX 825 Di2

Crank

SHIMANO GRX 820-2, 48-31 teeth, 172.5 / 175 mm cranks

Shifters

SHIMANO GRX 825 Di2 (24)

Cassette

SHIMANO CS-HG710-12, 11-36 (12)

Chain

KMC X12

Brakes

SHIMANO GRX 820, disc hydraulic (160 mm rotors)

TypeShimano GRX 800 Hydraulic Disc

Wheels
Rims

MAVIC Allroad UST Disc CL, wheel set, 20 holes

Spokes

MAVIC

Front Hub

MAVIC Allroad UST Disc CL, wheel set, 20 holes, 12 × 100 mm thru front a×le, 12 × 142 mm rear a×le

Rear Hub

MAVIC Allroad UST Disc CL, wheel set, 20 holes, 12 × 100 mm thru front a×le, 12 × 142 mm rear a×le

Tires

PANARACER Gravel King SK, aramid, 700 × 40C (max tyre size 700 × 47C)

Rider Notes
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First added October 26

Last updated May 30