The GT Power Series 22mm American Bottom Bracket Kit in silver is a high-quality aluminum bottom bracket designed specifically for BMX bikes. Made by the reputable brand GT in the United States, this kit includes a bottom bracket shell with a 22mm American size. It is compatible with BMX bikes, including models from GT, Dyno, and other BMX brands. This set is perfect for those looking to upgrade their old school BMX with a durable and lightweight bottom bracket.