Headset parts : 

name product : NO.57 – ORBIT 1.5ZS 

manufacturer : FSA 

type : SEMI-INTERGRATED 

angle : 36° x 45 ° 

bearing diameter : 1' 1/8 : 28, 6/44 mm – 1' 1/2 : 39, 8/56, 95 mm 

Headset Cover : 8mm

Stack height : 15.8 mm 

steerer diameter : 1' 1/8 – 1' 1/2 

Wight: 105g

With Top Cap

FSA No.57 Orbit Sealed Bearing 1.5 ZS 1 1/8"-1.5" tapered Road MTB Headset

Headset parts : 

name product : NO.57 – ORBIT 1.5ZS 

manufacturer : FSA 

type : SEMI-INTERGRATED 

angle : 36° x 45 ° 

bearing diameter : 1' 1/8 : 28, 6/44 mm – 1' 1/2 : 39, 8/56, 95 mm 

Headset Cover : 8mm

Stack height : 15.8 mm 

steerer diameter : 1' 1/8 – 1' 1/2 

Wight: 105g

With Top Cap