PT-1860ES

IS42/28.6 | IS52/40

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1-1/8" Upper / 1.5" Bottom, Integrated Headsets

For different OD headtube

Ø28.6 * 41.8 * 51.8 * 39.8 (conical cone OD size Ø46mm)

Height:8.8+ 1= 9.8mm, top cover H: 8mm

Bearings:Cartridge ball Bearings (Economic bearings)

41.8 * 7.7 * 45° (R430) Upper

51.8 * 7.8 * 45° (R440) Lower

Material:AL6061 top cover w/ AL7075 crown race

Finish:Anodized

Option PT-1860ES crown race Ø30mm for 1-1/8" straight steerer