COOK BROS Aluminium chainring bolts

The COOK BROS chainring bolts kit is made of very light and resistant 7075 Aluminum. Thanks to its 2 screw lengths, 5 or 6mm,  it can adapt to almost any combination including chainrings and cranks with threaded holes, and allows an optimized adjustment according to the thickness of the chainring or the crank spider.

FEATURES :
• Aluminum 7075-T6 bolts
• Dimensions: M8.5x5mm or M8.5x6mm 
• Suitable for 5mm (BCD 104mm) or 6mm thick  chainrings
• Sold by 15