This is the upgraded “SL” model, which features premium Shimano components and a lightweight aluminum frame. Great spec bike, perfect for teenagers, shorter adults, or anyone looking for a agile, comfortable ride. Wheel Size: 27.5 inches. Frame Size: Small (16″ Frame) – Ideal for riders between 5’0″ and 5’4 (154cm – 162cm). Frame Material: Lightweight Aluminium Lite. Gears: Shimano drivetrain (shifts smoothly through all gears). Tyres: High-quality rubber with plenty of deep tread remaining Condition Note: The bike is in great cosmetic shape and looks clean. Please note: The front brake lever is currently soft and goes all the way down to the handlebar, so the front brake will need attention (likely just needs a quick mineral oil bleed/top-up). The rear brake works completely fine and stops the bike perfectly.