There are a number of different manufacturers of roller bearing hubs today, but I feel these hubs represent the old styling while incorporating modern conveniences. These hubs are built after the Sarven style, yet without the wooden core. The mortising for the spokes is an integral part of the casting and uses a spoke very similar to the Sarven spoke (just a shorter tendon). The heavy rear flange is often machined to accommodate a drum for hydraulic brakes. These hubs come fit for four axle sizes; 1”, 1 1/8”, 1¼”, and 1½”, and use spoke sizes correspondingly.A 1¾” hub is also available for medium sized vehicles and light coaches that fit a 1¾” axle and spoke.