FSA headset Orbit NO57.E-1 1-1/8 1.5 R semi integrated tapered 50 62 mm 15 mm stack 16.9 + 2.9 = 19.8 mm 121-0491

FSA Headset
121-0491 HS NO.57E-1 15 mm alloy 1-1/8 – 1.5 / R

FSA NO.57E-1 1-1/8″ Semi-Integrated Headset

FEATURES

• Headset type: Zero Stack (semi-integrated)

• Fork tube: 1-1/8″ (adapter included)

• Upper headtube diameter (I.D. / O.D.): 44 / 50 mm

• Bottom headtube diameter (I.D. / O.D.): 55.95 / 62 mm

• Stack height: 16.9 + 2.9 = 19.8 mm

• Bearings: Stainless steel

• Upper bearing: ACB (36°/45°)

• Lower bearing: ACB (36°/45°)

• Upper cup material: Aluminum

• Bottom cup material: Aluminum

• Top Cap: included

• Star nut: included

• Weight (manufacturer): 129 g

• Color: Black

Spares

• Upper Bearing: TH873 (160-1648)

• Lower Bearing: TH073 (160-6761)

• Crown Race: 1-1/8″ (H6089, 160-5540)