... .Steel rim or aluminum alloy rim 3.Size: 16", 18", 20", 24" 4.Color; Red, blue, chrome ... ,etc U-16A (16", Aluminum rim or steel rim) Features: 1) Size: 16 ... 2) Materials: Aluminum rim, chromed frame (made from steel tube) 3) Fork: Clamp type, electro-plated or ... post: electro-plated finish 10) Seat post clamp: Chrome steel Quick Release clamp, getting the seat height just ...