Black / Blue

Titan-Matt / Black / Red

TEKTRO HD-M276, disc hydraulic (6" rotors)

Big wheels. Big possibilities.
For riders who want confidence and control in every terrain.
Author A-Matrix 29D is a mountain bike built around the stability of 29" wheels and reliable components for everyday off-road riding.
A lightweight aluminum frame, suspension fork and hydraulic disc brakes create a balanced setup that delivers confidence on forest trails, gravel roads and longer rides in nature.
The large 29" wheels provide smoother rollover, improved stability and better tracking in more demanding terrain. This makes riding more stable, efficient and less fatiguing, even on longer distances.
A-Matrix 29D is an ideal choice for riders looking for a versatile mountain bike with a strong balance of performance, handling and reliability. Suitable for riders 143–175 cm tall, available in frame sizes 14", 16" and 18".
Technical specifications for confident off-road riding
29" wheels – stability, better terrain rollover and smooth ride
Suitable for riders 143–175 cm – frame sizes 14", 16", 18"
Lightweight aluminum frame – strength, low weight and durability
Suntour SF18-XCE28 suspension fork – comfort and control on rough terrain
SHIMANO 9-speed drivetrain (11–46) – wide gear range for climbs and flats
TEKTRO hydraulic disc brakes – powerful and precise braking in all conditions
The Author A-Matrix 29D is a mountain bike that delivers stability, confidence and control on every ride. An ideal companion for everyday riding, training and exploring new off-road routes.

Author A-Matrix 29D

A 29″ aluminum frame road youth bike with mid-range components and tektro hydraulic disc brakes.

Weight	31.1 lbs
Frame	Aluminum
Suspension	Hardtail, 80mm
Wheels	29″ Aluminum
Drivetrain	1 × 9
Groupset	CUES
Brakes	Tektro Hydraulic Disc

Frame	alloy 29" Colors: Black / Blue; Titan-Matt / Black / Red
Fork	SUNTOUR XCE28 29 (80 mm) Travel: 80mm Spring Type: Coil
Stem	alloy
Handlebar	alloy, rise 20 mm, 660mm
Saddle	AUTHOR Cadet
Seatpost	alloy (27.2) Type: Rigid
Pedals	plastic

Rear Derailleur	SHIMANO Cues 4000
Crank	PROWHEEL, 32 teeth, 170 mm cranks
Shifters	SHIMANO Cues 4000 (9)
Cassette	SHIMANO CS-LG300-9, 11-46 teeth (9)
Chain	KMC XGlide
Brakes	TEKTRO HD-M276, disc hydraulic (6" rotors) Type: Tektro Hydraulic Disc

Rims	AUTHOR Argon 29, 32 holes
Spokes	black stainless steel 1.8 mm
Front Hub	QUANDO Disc, 32 holes
Rear Hub	QUANDO Disc, 32 holes
Tires	KENDA Aptor 29" x 2.10"

2026 AuthorA-Matrix 29D

2026 Author
A-Matrix 29D