Lumala Bicycle

Brand/Model: The bicycle is a Lumstar mountain bike, likely a "Shark" or similar model.

Frame: It features an alloy frame with a blue and yellow color scheme.

Suspension: It has a dual suspension system (front suspension fork and a rear shock absorber).

Brakes: The bike is equipped with dual disc brakes.

Gears: It has a multi-speed gear system, typically 21 speed on this type of model.

Wheel Size: Common sizes for this model are 24" or 26".