Kahomvis 27.5-in Adult unisex Road bike

27.5-in Adult unisex Road bike. Sturdy and durable aluminium alloy frame, provide safe and stable cycling experience,comes 85percent assembled.. 7-speed rear derailleur and 7 speed shifter ,make gear changes easy and smooth.. Aluminum rims, 700x28C High-performance tires,good riding experience.. Front and rear double disc brakes , Sensitive braking system More secure and faster. Size 47 cm for people between 5ft1inch to 5ft7inch