Size: About 39.50X37.50X13.00cm/15.52X14.74X5.11in. The bike rear rack was made with high strength aluminum alloy material, help you ride freely in rainy days or humid conditions.Fits most of bikes like bike but not fit the rear suspension bike, soft-tailed bike, carbon fiber bike. Easily mount on the seat post or take the rear bike rack off, you can change the seat height easily. Perfect for caring some stuff on your trip, work commute, even carry the people. Side bars effectively protect your bag from scratching by the wheel or spokes and also protect people's safety. 1 x Bike Cargo Rack.