NO.55R/57-A Headset - For 62mm OD Head tube, 1.5" w/TH-874-1, Anodized Black Turbo levo From the moment you wake

From the moment you wake up

Integrated bug mesh

It offers great protection for both oval and round chainrings

By incorporating a unique four-bolt locking mechanism in their Helix Race 8-Bolt Chainring interface

Carbon rim with unidirectional finish and a differentiated front/rear profile

NO.55R/57-A Headset - For 62mm OD Head tube, 1.5" w/TH-874-1, Anodized Black Turbo levo From the moment you wakeThe Full Speed Ahead NO. 55R 57 A is designed for use with 62mm outside diameter head tubes and features high performance 1. 5" Angular Contact Bearings (ACB) with black seals. For use with 62mm outside diameter head tubes Designed for 1 1 8" to 1 1 2" tapered forks Aluminum top cover 1. 5" angular contact bearings provide smooth movement while the black seals offer protection from the elements Compatible with Intense M1 frames