Headset bearings

[F1fan]

Hi

Does anyone know what headset bearings would fit a Specialized Crosstrail Comp Disc 2013.

Thanks

 

[thedatastream]

I found these sites helpful when looking for a new headset for my Cube MTB

http://problemsolversbike.com/files/tech/shis_standards.pdf

http://www.parktool.com/blog/repair-help/headset-standards