The Sinz BMX MX3 Crankset features a sleek black color and is made of durable aluminum material. With a length of 155mm, this single chainring crankset is designed specifically for BMX bikes. This set includes the crankset without a chainring, perfect for those looking to upgrade their bike with a high-quality component. With a simple one-speed design, this crankset is a reliable choice for cycling enthusiasts looking for performance and durability. Was mounted but never used. Comes as pictured.