The BMX Crank Arms by Fitbikeco. are designed for BMX bikes with a 175mm length and made from durable steel material. The set includes a single chainring and is in a sleek black colour. These crank arms are perfect for enthusiasts looking to upgrade their bike with a reliable and high-quality component. The 1-speed design ensures a simple and smooth riding experience, making them ideal for sporty individuals who enjoy the thrill of cycling.