ZS225

Zero Stack system on tapered head tube

Lightweight and strong duraluminum alloy construction

Tange Seiki original sized 4T5 Cartridge Bearing upper

Tange Seiki original sized 1.5” Cartridge bearing lower

Fully Sealed Mechanism


Technical Information


  Material   Height Information
Top Cover A6061-T6 Light Alloy 13.7mm ID 28.8mm / Pre-assembled Seal ring
Compression Ring A6061-T6 Light Alloy 6.0mm ID 28.6mm
Upper Adapter Cup A6061-T6 Light Alloy 7.6mm Insertion 44.0 +0.1 -0/ 6.3mm depth
Lower Adapter Cup A6061-T6 Light Alloy 12.6mm Insertion 56.0 +0.1 -0/ 10.8mm depth
Crown Cone SS41 Steel 4.6mm Insertion 39.74mm +- 0.25
Upper Cartridge Bearing SUJ2 Steel #1508 41/30.2/6.3
Lower Cartridge Bearing SUJ2 Steel #1728 52/40/8