NO.55R/57-A Headset - For 62mm OD Head tube, 1.5" w/TH-874-1, Anodized Black Turbo levo while vertical adjustments provide a

while vertical adjustments provide a custom fit

From the moment you wake up

Integrated bug mesh

High quality steel cable with two looped ends and a PVC-coating to prevent damage to bike's paint

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

NO.55R/57-A Headset - For 62mm OD Head tube, 1.5" w/TH-874-1, Anodized Black Turbo levo while vertical adjustments provide aThe 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