-Lightweight racing hubs for riders under 100 lb. -Rear shell from CNC machined 6061 T6 aluminum alloy. -Front shell from carbon. -Hollow 7075-T6 alloy axle. -Sealed cartridge bearings. -48 click 4 pawl engagement. -Shimano compatible cog system 12-18T (threaded or with lockring). 16T standard. -28/36H. -Rear hub available in anodized black, silver, red, blue and gold. Front hub in carbon only.     -Racing hubs for riders over 100 lb. -Shell from CNC machined 6061 T6 aluminum alloy. -Hollow 7075-T6 alloy axle. -Sealed cartridge bearings. -48 click 4 pawl engagement. -Shimano compatible cog system 12-18T. 16T standard. -36H. -Available in anodized black, silver, red, blue and gold.       -Shell from CNC machined 6061 T6 aluminum alloy. -Hollow crmo/alloy axle. -Sealed cartridge bearings. -28/36H. -Available in anodized black, silver, red and blue.         -Shell from CNC machined 6061 T6 aluminum alloy. -Hollow crmo axle. -Sealed cartridge bearings. -28/36H. -Available in anodized black, silver, red and blue.         -Economical cassette hubset. -10 mm threaded crmo axle. -12T-18T crmo cogs. -36H. -Available in black.