A Keysto bicycle. It is 27.5 inches, which is the wheel size in inches. Here are the most important specifications of this type of bicycle: For mountain and hybrid bikes to provide a balance between speed and control. Gear system: Often available with 21 speeds (3 front sprockets and 7 rear) to facilitate riding on inclines and different roads. Materials: The frame is usually made of steel or aluminum depending on the category, with front suspension to absorb shocks. Brake system: Often equipped with disc brakes to ensure effective stopping power. These bicycles are considered a good economical option for beginners in mountain biking or for daily commuting 👍🏼 For communication WhatsApp ( Phone number appears when clicking the contact button )