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

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