ACROS Bearing Set for IS52 / IS47 Headsets

The fully integrated ACROS IS headset combines robust stainless steel angular contact ball bearings with sophisticated 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:

- Upper steerer tube: 1 1/8" lower: 1 1/4"

- Upper angular contact ball bearing: 42 x 52 x 7 - 45°/45°

- Lower angular contact ball bearing: 34 x 46.8 x 7 - 45°/45°

- Upper press-fit diameter (ID) 41 mm

- Lower press-fit diameter (ID): 47 mm

- Ball bearings made of steel/stainless steel