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Hello and thanks for checking out this listing of a nice pre-owned Chris King No Threadset 

Suitable for 1-1/8" to 1-1/2" tapered fork and frame that accepts 44mm press-in cups.

Upper: 1-1/8" Zero Stack (ZS44/28.6) 
Lower: 44mm External Cup (EC44/40) 

Bearings are perfectly smooth. These are built to last forever. Cosmetic blemishes from brake line rub and prior install and removal.