Both cassettes feature Beam Spider technology for increased weight savings

Note that the main images show a red tool

Dry your Crux™ or Antidote® reservoir quickly and completely with the Reservoir Dryer

Ultegra BBR60

Brake ring thickness is optimised and specific to each diameter

Wolf Tooth Anodized Alloy Chainring Bolts - Orange - Set of 5 - 6mm Replace Images Both cassettes feature Beam SpiderWolf Tooth Chainring bolts use a large hex socket on both the bolt (5 mm) and the nut (6 mm). Bolts are 6 mm or 10mm long and have the length laser engraved on the head. These work great with Wolf Tooth or any other brand single chainrings. Designed and manufactured in the USA from 7075 T6 aluminum alloy. 6mm size sold as a set of 4 bolts+nuts for MTB cranks 10mm size is sold as a set of 4 bolts only (no nuts) for threaded 104 x 30T chainring 6mm