the bashguard

This design feature allows bearing/cup to be easily installed and removed from hub shell without any special tools

Weighing roughly under 445g which includes the disc

and a freecoaster hub

Profile AC-2 Race Front Hub supplier_54522452083014 the bashguardOverview AC 2 = Dual Angular Contact. This describes the use of both angular contact bearings and angled bearing cups hub bores used in the hub design. The AC 2 hub features revolutionary bearing installation and function never seen before in a bicycle hub. It has been designed from the ground up for ease of maintenance and optimal bearing performance. Here are a few key points of the AC 2 BMX Front Hub: The AC 2 hubs use 20mm Angular Contact bearings