• Cups and Covers: 6061 T-6 Aluminum Internally relieved to reduce weight
• Tall and short aluminum and carbon covers offered on many ZS models
• Durable steel crown races
• Dependable black-oxide coated, sealed bearings
• Interlok spacer compatible
• Innovative Clip-Seal completely seals the top assembly and captures the compression ring to reduce the number of loose parts
• High-quality, low friction face seals on the crown races
• Stack Heights:
• External Cup (EC) 16mm top, 12mm bottom
• ZeroStack (ZS) 8mm or 15mm top, 4mm bottom

Cane Creek has developed the most comprehensive tapered headset solution available today. The 40-Series tapered solution offers the most comprehensive and innovative line of tapered headset options available.