Full Speed Ahead NO.55R/57-A Headset - For 62mm OD Head tube 1.5" w/TH-874-1 Anodized Black. The 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