RIDERBOY Mountain Cycle 21 Gear Black

Brand: RIDERBOY.

Type: Mountain/hardtail cycle targeted at teen/adult riders (frame size roughly ~17 inch) with 26-inch wheels.

Gear system: 21-speed (3 chainrings up front × 7 rear? typical for 21-speed) – allows greater flexibility when climbing/descending. 

Brakes & suspension: Front suspension (fork) only; dual disc brakes (or at least “dual disc” label) for stronger stopping power. 

Frame/Material: Steel (mild steel) frame for durability. 

Wheel size: 26 inch. 

Colour / variant: There is mention of a “Black” version in social media posts. 

instagram.com

Target rider: The product page mentions age group “13+ years” for some variants: applicable for teen/adult riders.