Phil Wood 1/8" Track Cog presta The HS33 features a master

The HS33 features a master with a radial design

700x19-25mm Tube 80mm Valves Ideal for deep dish rims /wheels

reduced friction drivetrain

The saddle provides all-purpose comfort based on the proven shapes of Unicanitor

Professional-grade quality for expert riders

Phil Wood 1/8" Track Cog presta The HS33 features a masterPhil Wood track cogs are manufactured from solid stainless steel bars and tripple heat treated, making them one of the strongest cogs available. We recommend Phil track cogs with Phil Wood track hubs because they're machined to work together seamlessly, but they also work on all 1. 37" x 24 tpi English threaded hubs. Only available in 1 8 width. Additional information: Fits: Standard fixed gear threads 1. 37" x 24 tpi Chain Width: 1 8" only Tooth