Bionic Nuts are not only for looks or to reduce weight.

Most important feature and reason for making Bionic Nuts: there is a flange built into the nut unlike standard steel lock nuts. This flange protects against denting bearing shields during the removal or assembly of the wheels. Nearly every 1/2" wrench is designed too deep for the assembly and disassembly of quad wheels. 

Bionic Nuts do not improve the speed of your bearings, they protect them from becoming damaged and losing speed that causes body fatigue.

Bionic Lock Nut Features:

Bionic Nuts are made of 3M glass filled Nylon. No shrinkage during the moulding process, super strong threads for long lasting nuts.

Pack of 8