- / Black / Lime

Silver / Pink

Grey / Black / Red

TEKTRO HD-J2820, disc hydraulic (6" rotors)

Ready for real riding.
For young riders who want to take on forest and gravel trails.
Author A-Matrix 26D is a junior mountain bike built for kids who already have some experience and want a bike that takes them further – into off-road terrain, forest trails and fun gravel paths.
A lightweight aluminum frame, combined with a suspension fork and a wide gear range, delivers confidence, control and the freedom to explore new routes without limits.
The 26" wheels provide stability and smoother rollover over uneven surfaces, while the sport-oriented geometry supports a confident riding position and precise handling.
The A-Matrix 26D is the perfect step toward “adult” riding – still playful, but fully capable of handling more demanding terrain and longer rides.
Suitable for riders 130–150 cm tall who want to ride actively, develop their skills and rely on a bike that performs beyond paved roads.
Technical specifications for control and off-road riding
Suitable for riders 130–150 cm – ideal sizing for junior riders
Lightweight aluminum frame – low weight, strength and durability
ZOOM suspension fork – improved comfort and control on rough terrain
SHIMANO 8-speed drivetrain (11–40) – wide gear range for climbs and faster sections
KENDA Aptor 26" x 1.95" tires – reliable grip and confidence on gravel and forest trails
The Author A-Matrix 26D gives young riders the freedom to go further, try more and progress to the next level. A natural bridge between junior and adult cycling – with confidence, control and the joy of riding off-road.

Author A-Matrix 26D

A 26″ aluminum frame road youth bike with modest components and tektro hydraulic disc brakes.

Weight	26.9 lbs
Frame	Aluminum
Suspension	Hardtail, 80mm
Wheels	26″ Aluminum
Drivetrain	1 × 8
Groupset	Acera
Brakes	Tektro Hydraulic Disc

Frame	alloy 26" Colors: - / Black / Lime; Silver / Pink; Grey / Black / Red
Fork	ZOOM Disc 26 (80 mm) Travel: 80mm
Stem	alloy
Handlebar	alloy, rise 20 mm, 620 mm
Saddle	AUTHOR Racer
Seatpost	alloy (27.2) Type: Rigid
Pedals	plastic

Rear Derailleur	SHIMANO Acera
Crank	PROWHEEL, 32 teeth, 152 mm cranks
Shifters	SHIMANO Acera (8)
Cassette	SHIMANO CS-HG400-8, 11-40 teeth (8)
Chain	KMC Z8.3
Brakes	TEKTRO HD-J2820, disc hydraulic (6" rotors) Type: Tektro Hydraulic Disc

Rims	AUTHOR Argon 26, 28 holes
Spokes	black stainless steel 1.8 mm
Front Hub	QUANDO Disc 28, holes
Rear Hub	QUANDO Disc 28, holes
Tires	KENDA Aptor 26" x 1.95"

2026 AuthorA-Matrix 26D

2026 Author
A-Matrix 26D