Rear carrier that secures with seat stays and frame end carrier dowels. 0.4 inches (10.2 mm) Hollow Aluminum Alloy; Maximum Load: 55.3 lbs (25 kg), Supports Mounting Screws Included: Top Plate: L 11.0 x W 4.1 inches (280 x 105 mm), L 15.2 x W 6.5 inches (385 x 165 mm) (sold separately), it can be installed on bicycles without carrier dowels. Product color and size: The color of the product may look different from the actual product depending on your display settings. Product specifications, logo design, etc. may be subject to change for product improvement. We also cannot answer measurements or personal fit that the manufacturer does not announce. Please be aware of