Full Speed Ahead NO.55R/57-A Headset - For 62mm OD Head tube 1.5" w/TH-874-1 Anodized BLK CheckoutTitle=Cygolite Dice TL 50 Rechargeable Taillight - 50 Lumens Internal Lock Size Metric 85cm

Internal Lock Size Metric 85cm Bracket No Thickness In mm 6mm Lock Type Combination Primary Color Black

Petroleum free formula for eco protection

Mesh cut-out back eliminates fabric bunching and irritation while adding air flow

Precision engineered in Switzerland

Full Speed Ahead NO.55R/57-A Headset - For 62mm OD Head tube 1.5" w/TH-874-1 Anodized BLK CheckoutTitle=Cygolite Dice TL 50 Rechargeable Taillight - 50 Lumens Internal Lock Size Metric 85cmFull 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