Neptune Sand Dollar BMX Power Disc - Blue - USA Made Skinwall the rear hub is a

the rear hub is a Cassette which will work Shimano type cogs (16t included) and will work with 6B disc rotors

Will allows for hands-free use with the PopMounts (not included)

The hubs are silver anodized alloy high flange sealed bearing with 3/8 axles front & rear

The calipers features cold-forged aluminum arms and a quick adjust/release mechanism

Seat post mount

Neptune Sand Dollar BMX Power Disc - Blue - USA Made Skinwall the rear hub is aThe Neptune Sand Dollar BMX Power Disc spider is made from lightweight, thick and strong 6061 aluminum alloy. It has a 110 BCD and 130 BCD 5 bolt pattern and a 15 16" 23. 8mm (24mm) bore, which can be used with most cranks with the use of the proper sprocket adapter (not included). This Power Disc can only be used with chainrings that are 39T or larger. This sprocket has an anodized finish and laser etched logos. Neptune sprockets are made in the USA!