This is nice looking vintage Mavic 630 crankset. I consider this item usable, nut please notice in the pictures there is a hairline crack in the drive side spider. I have included super close up pictures from the side and from the back. This is not a crankset that should be raced or hammered on. It is good for a restoration and casual vintage rides. Use your own discretion and use at your own risk. Sold by Trued Wheel in conjunction with Vintage Velo Venice.