SDR Model differences

Hi all,
as posted before im on the lookout for a SDR.
Can anybody tell me what the differences are between the 2007 & 2008 SDR
Thanks in advance

The 2007 engine is the same as the standard SD whereas the 2008 has some work done and a 900rpm high redline (10500rpm).

Obviously the uprated suspension, single seat and orange frame are the same. There may be more small details, I'm no expert on the SDR.