Specialized Roubaix Comp 2010 Headset Bearings

colinsmith123 Posts: 579
edited March 2015 in Workshop
Does anyone know what bearings I need to order for a 2010 Specialized Roubaix Comp. I've done the google thing with no success. Specialized Concept Store want to sell me a new headset for £50 which is not what I need. They did give me a part number w7793120.if that helps at all. Also I cannot order on line from Specialized.

The old bearings are fooked but just about rideable so I don't want to dismantle to measure as the bearings will all fall out if I did.

Thanks in anticipation of your help.
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