ACB MR136 Giant Od2 Upper 11/4-41.8x33x6mm

Headset bearings for Giant OD2 headsets, with some models available in different material options. SL Light bearings have an alloy outer race to reduce weight, although expect more frequent replacement intervals than with chrome steel or stainless bearings.

Please refer to the schematics in the gallery for reference, and compare bearing OD (outer diameter), ID (inner diameter), height and angle measurements to determine the correct size.