Cervelo R3SL headset required

colinsmith123

Please help, using the Cane Creek headset finder has not been able to find a suitable headset for my Cervelo R3SL

The IS41 bottom bearing I have ordered does not fit on to the top of the crown race as the ID is too small.

Here are the measurements taken with digital calipers (zeroed)

Steerer tube OD 28.68mm
Top frame OD 40.85mm
Bottom frame OD 40.92mm
Crown race 32,43mm

Thanks

Edit. A good night's sleep revels the old inner race is still stuck on the fork, so off to my LBS later. Problem solved!