ACROS a04 Bearing Set for IS44 / IS52 Headsets

The fully integrated ACROS IS bearing set combines robust stainless steel angular contact ball bearings with sophisticated gaskets. The result: long-lasting performance, minimal maintenance, and a more relaxed riding experience on your bicycle.

The headset is installed, for example, on Canyon models. 

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

Technical Specifications:

- Upper angular contact ball bearing: 35x44x5.5 36°/36°

- Lower angular contact ball bearing: 40x52x7-36°/45°

- Upper press-fit diameter (ID) 44 mm

- Lower press-fit diameter (ID): 52 mm

- Canyon CIU centering ring EP1655-01

- Steel/stainless steel ball bearings