FSD

Big Hit Cr-Mo Strength headset

Heat-treated Cr-Mo Upper/ lower cups and crown race.

Oversized cartridge bearing on lower unit for increased durability and bigger hits.

Standard size cartridge bearing on upper unit for weight savings.

Tange Seiki exclusive EZ system on upper unit.


Technical Information


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Material Height Information
Top Cover A7075-T6 Light Alloy 13.4mm ID 28.6mm / Pre-assembled compression ring (pat.p)
Upper Stationary Cup SUS450C Stainless Steel 21.1mm Insertion 34.0 +0.1 -0/ 12.5mm depth
Lower Stationary Cup SUS450C Stainless Steel 27.1mm Insertion 34.0 +0.1 -0/ 12.5mm depth
Crown Cone SS41 Steel 6.9mm Insertion 30.0 +0 -0.1
Press Inserted Bearing SUJ2 Steel #1508 Upper cup only
Cartridge Bearing SUJ2 Steel #1528 OD 44.8mm large size Cartridge Bearing for Lower cup only
Lower Seal Ring Nylon Plastic 1.0mm