Halo Fixed Cog 1/8" 15t Silver MFPN=21159 Tool Interface: 5mm and 6mm

Tool Interface:  5mm and 6mm hex key

With the all-new Genius

6-pawls with a 60-tooth drive ring for super fast engagement

390mm deck height is intended for use with 700C and 29` frames

Its intricately machined hubshell is superlight while the 25mm tall rim has the inherent stiffness necessary for efficient riding and to precisely hold a line

Halo Fixed Cog 1/8" 15t Silver MFPN=21159 Tool Interface: 5mm and 6mmCNC machined steel track cog, 1. 37"x24tpi (right handed) thread, 1 2" x 1 8" teeth Choose aluminum or steel lockrings, sold separately (HL 3891 or HL 3899) Model Fixed Cog Description Threaded Track Cog Hub 1. 37"x24tpi Teeth 15 Chain 1 8" Color Silver