Author A-Matrix 26 D

Name: Author A-Matrix 26 D
Brand: Author

2025 YouthRoad youth Manufacturer page

Fork travel: 80 mm
Wheels: 26″
Drivetrain: 1 × 8 32t / 11–40t
Gear range: 364%
Weight: 12.7 kg 28.0 lb · Reference configuration not specified
Frame: Aluminum
Brakes: Mechanical disc

Rider height by size (cm)

Size guide

13" 130–150

Components

9 of 18 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 6061 26" Not identified

Suspension

1 part

Fork
- RST

Drivetrain

5 parts

Cassette
- Shimano CS-HG400-8 8 speeds
CS-HG400
Chain
- KMC Z8.3 8 speeds
Crankset
- Prowheel
Rear derailleur
- Shimano Acera
Shifters
- Shimano Acera

Brakes

1 part

Brakes
- Tektro

Wheels and tires

5 parts

Front hub

QUANDO Disc, 32 holes Not identified
Rear hub

QUANDO Disc, 32 holes Not identified
Rims

alloy, 32 holes Not identified
Spokes

black steel Not identified
Tires
- Author

Cockpit and contact points

5 parts

Handlebar

steel, 20 mm 620 mm Not identified
Pedals

plastic Not identified
Saddle
- Author
Seatpost

alloy (27.2) Not identified
Stem

alloy Not identified

Sizes and geometry

1 size Open in the geometry plotter

Enter your height to highlight matching ranges.

Size 13"

Table

Reach 363mm

Stack 551mm

Wheelbase 1022mm

Head angle 69.5°

Seat angle 73.5°

Every size is drawn to the same scale, in millimeters. Explanatory schematic on an assumed 26″ wheel; exact published values are in the table below.

Size Reported by the manufacturer

Complete manufacturer geometry table 1 published size

Complete manufacturer geometry by size
Measurement
Reachmm	363
Stackmm	551
Top tube lengthmm	526
Seat tube lengthmm	343
Head tube lengthmm	100
Head tube angle	69.5°
Seat tube angle	73.5°
Chainstay lengthmm	425
Wheelbasemm	1022
Front centermm	599
Bottom bracket dropmm	30
Fork rakemm	38
Stack/reach ratio	1.52

Not published by the manufacturer: Bottom bracket height, Standover height, Trail, 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: 12.7 kg

28.0 lb

Suspension

Suspension configuration: Hardtail
Front travel: 80 mm

Drivetrain

Derived by Bikelake

Front chainrings: 1
Smallest chainring: 32
Largest chainring: 32
Rear sprockets: 8
Smallest sprocket: 11
Largest sprocket: 40
Lowest gear: 20.8 in
Highest gear: 75.6 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Mechanical disc

Fit and controls

Seatpost: Rigid seatpost
Shifting: Mechanical

Additional specifications

Fork spring: Coil
Tire width: 2″
Wheel material: Aluminum
Wheel size: 26″

Gearing

Estimated speeds at 80 rpm

Lowest gear: 8.0 km/h
Highest gear: 29.0 km/h

Total gear range 364%

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: 20.8–75.6 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 A-Matrix 26 D	Author A-Matrix 24	Author A-Matrix 26D
Frame
Bicycle weight	12.7 kg	11.3 kg	12.7 kg
Suspension
Front travel	80 mm	50 mm	80 mm
Drivetrain
Largest sprocket	40	34	40
Lowest gear	20.8 in	22.6 in	20.8 in
Highest gear	75.6 in	69.8 in	75.6 in
Brakes
Brake type	Mechanical disc	Rim brake	Mechanical disc
Other specifications
Tire width	2″	1.75″	2″
Wheel size	26″	24″	26″