The Blackburn Central Seatpost Rack is the epitome of versatility and simplicity. The rack features a robust aluminum construction and attaches to seatposts 22mm - 32mm in diameter. It's perfect for trunk bags and the rack deck can be flipped over to better fit different size bikes. Features: Aluminum construction is lightweight and durable Mounts to seatposts 22mm - 32mm in diameter Light and reflector mounting loop Specifications: Carrying capacity: 22 lbs / 10 kg Note: Not intended for use with carbon seatposts or seatposts that don't have a round profile