Full Speed Ahead NO.55R/57-A Headset - For 62mm OD Head tube 1.5" w/TH-874-1 Anodized BLK MFPN=1-ST-EXBBT-SOC-4416 Sold in Pairs

Sold in Pairs

18 Bolt Mount Diameter 6

35mm RockShox

The tread's 48 precision-formed vortex-generating cavities create controlled turbulence ensuring prolonged airflow attachment to the rim resulting in reduced aerodynamic drag and improved crosswind stability

Full Speed Ahead NO.55R/57-A Headset - For 62mm OD Head tube 1.5" w/TH-874-1 Anodized BLK MFPN=1-ST-EXBBT-SOC-4416 Sold in PairsFull 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