AUTHOR A-Matrix 24D 2026 12.5" Matte Titanium/Black/Red

The AUTHOR A-Matrix 24D kids' bike is designed for young riders from 8 years of age who have already mastered the basics and want to experience the feel of a mountain bike. Thanks to its sportier geometry and 24-inch wheels, children will gain confidence for longer routes and more technical terrain. The lightweight aluminium frame is complemented by a suspension fork that helps absorb bumps. Safe stopping is ensured by reliable hydraulic disc brakes, while the 8-speed derailleur offers plenty of gears.

Sporty Geometry for a Confident Ride

The AUTHOR A-Matrix 24D bike is designed for children who want to ride actively and try new challenges. The sportier frame geometry gives young riders the confidence to tackle faster rides and more technical sections. The lightweight duralumin frame, combined with the ZOOM suspension fork with 50mm of travel, helps to handle uneven terrain and increases comfort and control over the bike. This makes for a smoother and less tiring ride.

Reliable Brakes and Precise Shifting

For safety in every situation, the bike is equipped with TEKTRO hydraulic disc brakes. These provide powerful and responsive braking performance in all weather conditions, allowing children to control their speed precisely. The gear system combines a Shimano TOURNEY RD-TX800 derailleur with a Shimano Acera shifter, offering 8 speeds. The 11–34 tooth cassette provides enough gears for both uphill and flat riding.

Durable Components and Construction

The foundation of the bike is its components, which can withstand even rougher handling. The 1.95-inch wide KENDA Aptor tyres offer good stability and off-road capability. The wheels are built with double-wall aluminium rims, which increase their strength and resistance to damage. The sealed bottom bracket minimises maintenance requirements. The aluminium handlebars and stem contribute to the bike's overall low weight.