Profile Mini Cassette Hub - Blue RHD Full The FR-6 has four notches

The FR-6 has four notches approximately 32mm across measured inside to inside          and 40mm outside to outside

Odyssey's C5 front hub and double-walled Quadrant rim laced with 14 gauge spokes and brass nipples

Aluminum M25 Compression Bolt

100% Canadian Hard Rock Maple

Replacement axle for Cult's Astronomical freecoaster hub

Profile Mini Cassette Hub - Blue RHD Full The FR-6 has four notchesMade in the USA. Heat treated 6061 aluminum hub shell with a larger drive side flange. Precision sealed cartridge bearings. You chose the axle, driver cog and bolts nuts. Drivers are 1 piece chromoly with 4 pawls springs. 36 hole. *Note: You must select 14mm axle nuts for any 14mm Male GDH axle. *Color of non drive side collar may vary between black or polished based on availability. Weight: 17. 65 oz (14mm GDH chromoly axle and driver)