Halo Fixed Cog 1/8" 15t Silver MFPN=21159 With the all-new Genius

With the all-new Genius

Axle Type 12mm TA Freehub Body Shimano Micro Spline Primary Color Red Hub Spoke Type J-bend Hub Weight 227g Hub Drilling 28H Position Rear Rotor Mount Center Lock Hub Spacing 148mm

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

Tool Interface:  5mm and 6mm hex key

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

Halo Fixed Cog 1/8" 15t Silver MFPN=21159 With the all-new GeniusCNC 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