Author Codex ASL

2025 UrbanHybrid Manufacturer page

Fork travel: 80 mm
Wheels: 29″
Gear range: 629%
Weight: 13.5 kg 29.8 lb · Reference configuration not specified
Frame: Aluminum
Brakes: Hydraulic disc

Rider height by size (cm)

Size guide

15" 145–158
17" 155–172
19" 170–185

Components

17 of 19 identified

Parts found in a manufacturer catalog show their brand, model and key numbers, and the steps show how precisely they are identified: brand, series, model, or the exact product. The info button has every detail and the text the manufacturer published.

Frame and fork

1 part

Frame

triple butted alloy 6061 29" (ASL) Not identified

Suspension

1 part

Fork
- RST

Drivetrain

6 parts

Cassette
- Shimano CS-LG400-11 11 speeds
CS-LG400-11
Chain
- KMC XGlide 11 speeds
Crankset
- Shimano Cues FC-U4000 11 speeds
FC-U4000
Front derailleur
- Shimano Cues FD-U6000 2 speeds
FD-U6000
Rear derailleur
- Shimano Cues RD-U6000 11 speeds
RD-U6000
Shifters
- Shimano Cues SL-U6000
SL-U6000

Brakes

1 part

Brakes
- Tektro HD-M530
HD-M530

Wheels and tires

5 parts

Front hub
- Author
Rear hub
- Author
Rims
- Author
Spokes

black stainless steel 2.0 mm Not identified
Tires
- Author

Cockpit and contact points

5 parts

Sizes and geometry

3 sizes Open in the geometry plotter

Enter your height to highlight matching ranges.

Size 17"

Table

Reach 386mm

Stack 619mm

Wheelbase 1077mm

Head angle 70.5°

Seat angle 73.5°

Every size is drawn to the same scale, in millimeters. Explanatory schematic on an assumed 29″ wheel; exact published values are in the table below.

Size Reported by the manufacturer

Complete manufacturer geometry table 3 published sizes

Complete manufacturer geometry by size
Measurement
Reachmm	370	386	404
Stackmm	609	619	628
Top tube lengthmm	550	570	590
Seat tube lengthmm	381	432	483
Head tube lengthmm	110	120	130
Head tube angle	70.5°	70.5°	70.5°
Seat tube angle	73.5°	73.5°	73.5°
Chainstay lengthmm	450	450	450
Wheelbasemm	1057	1077	1098
Front centermm	614	634	655
Bottom bracket dropmm	60	60	60
Fork rakemm	44	44	44
Trailmm	77	77	77
Stack/reach ratio	1.65	1.60	1.55

Not published by the manufacturer: Bottom bracket height, Standover height, Front travel, Rear travel, Crank length, Handlebar width, Stem length, Stem angle, Seatpost length and Dropper post travel.

Specifications

Frame and fork

Intended fit: Unisex
Frame material: Aluminum
Bicycle weight: 13.5 kg

29.8 lb

Suspension

Suspension configuration: Hardtail
Front travel: 80 mm

Drivetrain

Derived by Bikelake

Front chainrings: 2
Smallest chainring: 26
Largest chainring: 40
Smallest sprocket: 11
Largest sprocket: 45
Lowest gear: 16.8 in
Highest gear: 105.5 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Hydraulic disc

Fit and controls

Seatpost: Rigid seatpost
Shifting: Mechanical

Additional specifications

Fork spring: Air
Tire width: 1.75″
Wheel material: Aluminum
Wheel size: 29″

Gearing

Estimated speeds at 80 rpm

Lowest gear: 6.4 km/h
Highest gear: 40.4 km/h

Total gear range 629%

Technical details and class reference

These speeds describe the gearing at the selected cadence, not how fast you can ride.
Calculated from published gear-inch values and their wheel-size assumptions.
These gearing values describe the bicycle, not a selected frame size.
A 100% range means one ratio; 500% means the highest ratio is five times the lowest.
For e-bikes, motor assistance cutoff is not represented.

Gear-inch range

Lower gear-inch values travel less distance per pedal revolution; higher values travel farther.

This bicycle: 16.8–105.5 gear inches

Lineup changes

The published facts that differ across this family's builds and from the same model a year earlier. Missing information never counts as zero.

Differences across 2025 builds
Specification	This bicycle Author Codex ASL	Author Codex
Frame
Bicycle weight	13.5 kg	13.7 kg
Drivetrain
Smallest chainring	26	30
Largest chainring	40	46
Lowest gear	16.8 in	19.3 in
Highest gear	105.5 in	121.3 in

Changes since 2024
Specification	2024 Author Codex ASL	This bicycle Author Codex ASL
Frame
Bicycle weight	12.7 kg	13.5 kg
Drivetrain
Front chainrings	3	2
Smallest chainring	24	26
Largest chainring	44	40
Rear sprockets	10	Not informed
Largest sprocket	36	45
Lowest gear	19.3 in	16.8 in
Highest gear	116.0 in	105.5 in