ACROS AZ-66 Headset Lower Part | 1.8" | ZS66/46

The ACROS ZS66/46 headset lower part combines robust stainless steel angular contact ball bearings with well-designed gaskets. The result: long-lasting performance, minimal maintenance, and more relaxed time on the bicycle. 

For more information on compatibility, check out the headset finder on the ACROS website. 

Technical Specifications:

- For 1.8" steerer tube (45.8 mm)

- Inner diameter (ID): 66 mm

- Outer diameter (OD): 72 mm

- Height: 3.6 mm

- Press-fit depth: 10 mm

Lower headset bearing pressed into a bearing cup with IPS gasket and crown race.