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Cartridge Bearing system
Lightweight and strong duraluminum alloy construction
Tange Seiki original sized 4T5 Cartridge Bearings
Fully Sealed Mechanism
Specifications:
Stock steel brompton headset 168g, titanium brompton 123g
Material | Height | Information | ||
Top Lock Nut | A6061-T6 | Light Alloy | 7.5mm | 8 flats 36mm width, 5mm Threading |
Key Washer | SPCC | Steel | 2.0mm | |
Adjusting Cone | A6061-T6 | Light Alloy | 9.8mm | 8 flats 36mm width, 9.8mm threading |
Upper Stationary Cup | A6061-T6 | Light Alloy | 18.3mm | Insertion 34.0 +0.1 -0/ 10mm depth |
Lower Stationary Cup | A6061-T6 | Light Alloy | 20.5mm | Insertion 34.0 +0.1 -0/ 10mm depth |
Crown Cone | SS41 | Steel | 4.5mm | Insertion 30.0 +0 -0.1 |
Lower Seal Ring | Nylon 66 | Plastic | 0.75mm | 5/32"x16 Balls |
Cartridge Bearing X2 | SUJ-2 | #1508 | ||
Color valiations | Silver, Black |