36 x 45 degree "ACB" bearing measures: 30.15mm ID x 41mm OD x 6.5mm W

Silicone Nitride ball bearings with 440C stainless races! These bearings offer great corrosion resistance and lighter weight than conventional all-steel bearings. This bearing is a drop-in replacement for the Orbit Z headset and many others. However, some headsets may use bearings with slightly different dimensions or angles. Please verify the bearing angles and dimensions before placing your order.

Fits the following 1-1/8" FSA headsets:

FSA Orbit Z
FSA Orbit Z 1.5R (Reducer headset)

BEARINGS SOLD INDIVIDUALLY