Bike details
Overview
Key information split into simple groups.
Bike summary
-
-
Frame Carbon -
Groupset GRX 800, GRX Di2 -
Suspension Rigid -
Drivetrain 2 × 12 Electronic -
Brakes Shimano GRX 800 Hydraulic Disc
Sizing
Recommended size guide.
SM
160cm - 171cm
MD
169cm - 180cm
LG
177cm - 187cm
XL
184cm - 194cm
Parts list
Components
Main components, grouped by system.
Bike components
Frame
Frame
AUTHOR carbon Toray T700/M40 monocoque gravel
Suspension Fork
AUTHOR carbon Toray T700 monocoque gravel, 1.5" tapered
Drivetrain
Rear Derailleur
SHIMANO GRX 825 Di2
Front Derailleur
SHIMANO GRX 825 Di2
Shift Levers
SHIMANO GRX 825 Di2 (24)
Cassette
SHIMANO CS-HG710-12, 11-36 (12)
Crank
SHIMANO GRX 820-2, 48-31 teeth, 172.5 / 175 mm cranks
Chain
KMC X12
Wheels
Front Hub
MAVIC Allroad UST Disc CL, wheel set, 20 holes, 12 × 100 mm thru front axle, 12 × 142 mm rear axle
Rear Hub
MAVIC Allroad UST Disc CL, wheel set, 20 holes, 12 × 100 mm thru front axle, 12 × 142 mm rear axle
Rims
MAVIC Allroad UST Disc CL, wheel set, 20 holes
Spokes
MAVIC
Tires
PANARACER Gravel King SK, aramid, 700 × 40C
Brakes
Brakes
SHIMANO GRX 820, disc hydraulic (160 mm rotors)
Cockpit
Stem
FSA NS SMR-II
Handlebar
FSA Wing AGX, 420 / 440 mm
Seat
Saddle
PROLOGO Scratch M5 Space AGX Tirox
Seatpost
FSA K-Force SBO carbon (27.2)
Fit data
Geometry
Numbers for sizing and ride feel.
| Size | SM | MD | LG | XL |
|---|---|---|---|---|
| Stack Reach Ratio | 1.488 mm | 1.487 mm | 1.485 mm | 1.496 mm |
| Bottom Bracket Height | 275 mm | 275 mm | 275 mm | 275 mm |
| Front Center | 611 mm | 625 mm | 645 mm | 661 mm |
| Rake | 47 mm | 47 mm | 47 mm | 47 mm |
| Trail | 73 mm | 70 mm | 68 mm | 69 mm |
| Stack | 567 mm | 586 mm | 603 mm | 624 mm |
| Reach | 381 mm | 394 mm | 406 mm | 417 mm |
| Top Tube Length | 549 mm | 567 mm | 585 mm | 602 mm |
| Seat Tube Angle | 73.5 ° | 73.5 ° | 73.5 ° | 73.5 ° |
| Seat Tube Length | 480 mm | 510 mm | 540 mm | 570 mm |
| Head Tube Angle | 70.5 ° | 71 ° | 71 ° | 71 ° |
| Head Tube Length | 130 mm | 150 mm | 170 mm | 190 mm |
| Chainstay Length | 435 mm | 435 mm | 435 mm | 435 mm |
| Wheelbase | 1035 mm | 1049 mm | 1069 mm | 1086 mm |
| Bottom Bracket Drop | 74 mm | 74 mm | 74 mm | 74 mm |
| Wheels | 700 | 700 | 700 | 700 |
| Rider Min Height | 160 cm | 169 cm | 177 cm | 184 cm |
| Rider Max Height | 171 cm | 180 cm | 187 cm | 194 cm |