Specialized Allez replace headset bearings

Hi,
I just bought a specialized Allez 2013 model and wish to replace the headset bearings for service. I am having trouble finding the correct version I need on Chain reaction cycles. Spec list is as follows
1-1/8" sealed Cr-Mo cartridge bearings integrated w/ headset, 20mm alloy cone spacer, w/ 20mm of spacers
Can anyone send me links as to what I need?
Thanks
Paul
I just bought a specialized Allez 2013 model and wish to replace the headset bearings for service. I am having trouble finding the correct version I need on Chain reaction cycles. Spec list is as follows
1-1/8" sealed Cr-Mo cartridge bearings integrated w/ headset, 20mm alloy cone spacer, w/ 20mm of spacers
Can anyone send me links as to what I need?
Thanks
Paul
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Posts
Might have changed though as my Allez is the 2011 Elite (E5).