Help! What head set to get?

Hi all, new to the forum so go easy haha, I have just bought a 2013 boardman ht comp mtb frame and I'm struggling to find a suitable headset I believe it's semi integrated? 1.1/8 steerer but I don't no ID of head tube as original bearing cups are still fitted?
Any help would be great, specific headsets maybe
Cheers
Any help would be great, specific headsets maybe
Cheers
0
Posts
Or take the frame to a shop if you're not confident.
http://www.halfords.com/webapp/wcs/stor ... 10157#tab1
Thats is the direct replacement.
2012 Nukeproof Mega
2011 Haro Flightline Expert
2010 Spesh FSR XC Pro