1-1/8" Upper / 1-1/8" Bottom

PT-1800H

ZS44/28.6 | ZS44/30

1-1/8" Internal Headset
ø28.6x44x30

Height:        13+3.8=16.8mm    (top cover H:10mm )
                    18+3.8=21.8mm    (top cover H:15mm )
                    23+3.8=26.8mm    (top cover H:20mm )
                    28+3.8=31.8mm    (top cover H:25mm )
Weight:       112.1g
Bearings:     Semi Cartridge Bearings  
                    Ball Retainer: 5/32" x 22(R003)
Material:      Top cover: AL6061 
                    w/steel cups & crown race
Finish:          EDBK

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