Upper and lower headset bearings -Cervelo r5 2013

they are 1 1/8 x 1 1/4

When I did mine I posted the same question as yourself and I had a useful reply:

if they are the same as my 2012 R3 team here is a link

http://simplybearings.co.uk/shop/p20000 ... _info.html

I fitted the bearings and it's a really easy job

and a video to show you

http://www.youtube.com/watch?v=8X3LbcjsESw