I'm so confused! The problem is that I dont know exactly what the cranks are; just that Specialised call them the 'custom carbon S-2200', I am guessing that they are the SRAM X0's or similar.

I've been told I need one of these:

ww.google.co.uk/products/catalog?pq=crank+extractor&xhr=t&q=crank+extractor+isis&cp=17&hl=en&bav=on.2,or.r_gc.r_pw.&biw=1441&bih=710&wrapid=tlif131091111167600&um=1&ie=UTF-8&tbm=shop&cid=4167868785869963783&sa=X&ei=l-oiToOeKoiu8QPYq_i_Aw&sqi=2&ved=0CD0Q8wIwAw

 uhh you just need a crank puller, there called splines they keep the crank arm where it is when its under the pressure of peddaling

 Unless there are threads in the metal, which from the photo i don't think there are. It won't be Shinano Hollowtech tool.

 that a crank arm , if so i would say the hollowtech 2 tensioning tool . looks familiar to mine