Quote:
   | Originally posted by rockhopper Almost right Lisa, i think you'll find that all the 600, 620, 750 and 900 models have two valve heads, the 748,916,996 motors have four valve heads.
 | 
 
    YES I DO KNOW THAT.....If you read the first sentence I only compared the S and the SS in the fact that the s has unadjustable forks...