Author Grand ASL

Name: Author Grand ASL
Brand: Author

2026 UrbanHybrid Manufacturer page

Fork travel: 80 mm
Wheels: 29″
Drivetrain: 2 × 9 26–40t / 11–36t
Gear range: 503%
Weight: 14.2 kg 31.3 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

14 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

alloy 29" (ASL) Not identified

Suspension

1 part

Fork
- RST

Drivetrain

6 parts

Cassette
- Shimano CS-LG300-9 9 speeds
CS-LG300
Chain
- KMC XGlide 11 speeds
Crankset
- Shimano Cues FC-U4000 11 speeds
FC-U4000
Front derailleur
- Shimano Cues FD-U4000 2 speeds
FD-U4000
Rear derailleur
- Shimano Cues RD-U3020 9 speeds
RD-U3020
Shifters
- Shimano Cues SL-U4000
SL-U4000

Brakes

1 part

Brakes
- Tektro HD-M280 / HD-M281
HD-M280HD-M281

Wheels and tires

5 parts

Front hub

QUANDO Disc, 32 holes Not identified
Rear hub

QUANDO Disc, 32 holes Not identified
Rims
- Author
Spokes

black stainless steel 2.0 mm Not identified
Tires
- Author

Cockpit and contact points

5 parts

Handlebar
- Author
Pedals
- Author
Saddle
- Author
Seatpost
- Author
Stem

UNO adjustable Not identified

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: 14.2 kg

31.3 lb

Suspension

Suspension configuration: Hardtail
Front travel: 80 mm

Drivetrain

Derived by Bikelake

Front chainrings: 2
Smallest chainring: 26
Largest chainring: 40
Rear sprockets: 9
Smallest sprocket: 11
Largest sprocket: 36
Lowest gear: 20.9 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: Coil
Tire width: 1.75″
Wheel material: Aluminum
Wheel size: 29″

Technical analysis

2 measures

How these figures sit among bicycles of the same class and model year. Context, not a ranking.

Front travel

80 mm

This value is within the central range for this class.

Cohort: Urban / Hybrid Model year: 2026
Sample: 580 bicycles with this information
Coverage: 72.4% of the class

Shifting

Mechanical

21 of 801 bicycles with this information use electronic shifting.

Cohort: Urban / Hybrid Model year: 2026
Sample: 801 bicycles with this information
Coverage: 100.0% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 8.0 km/h
Highest gear: 40.4 km/h

Total gear range 504%

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.