Bionic lock nuts utilise a special material developed by 3M. It is a glass filled nylon which does not shrink during the moulding process. This ensures a precise and long lasting lock nut.
The main feature is the fact that the nuts have flanges on the bottom. This eliminates possible damage to the bearings and help protect them from drag and fatigue.
Due to the material choice you get a super low weight lock nut that is much more light weight than conventional steel lock nuts.
Pack of 8 Nuts