This NOS - DURA-ACE crankset is a top-of-the-line product for BMX bikes. It has a crankarm length of 170mm and comes in a sleek silver color. The brand name DURA speaks for itself in terms of quality and durability. This crankset is an essential component for any serious cyclist looking to enhance their performance. It is perfect for those who want to upgrade their current bike or for those building a new one.