Stronglight JD A9 ISO 1" Threaded Headset - Black


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Straightforward 1" headset from Stronglight
ISO specification
Perfect for rebuilding a vintage lugged road frame
Steel with a black finish

Detailed Specs
Standard: ISO
Cup Outer Diameter: 30.2mm 
Crown Race Inner Diameter: 26.4mm
Threading: 24 threads per inch (TPI)
For frame with steering tube Outer Diameter: 25.4mm
For 1" Stem which actually has Outer Diameter: 22.2mm
Stack height 38mm
Weight: 165g
Bearing Type: Caged Bearings