Phil Wood track cog
Phil Wood cogs are manufactured from solid stainless steel bars that are heat-treated three separate times and are polished to a mirror-like finish.
FYI: All track cogs have 1.370"x24tpi threading. ALL OF THEM. Any threaded cog can be used on any threaded track hub.
• made in USA
• standard 1.370"x24tpi threading
• 1/2 X 1/8"