HEADSETS - THREADED 

AR03A: Black steel sealed headset 24TPI, threaded.  

• Crown: 27.0mm 
• Head tube: 30.0mm  
• Stack height: 35mm 
• Stem: 22.2mm or 21.1mm 

AR01: Chrome plated sports bike steel headset. 26TPI, threaded.  

• Stem: 22.2mm 
• Crown: 27.0mm 
• Head tube: 30.0mm