After searching through related threads giving info on fork oil amounts, I decided that the correct amount of oil for my '06 Tiger was 682cc per leg with the oil level 107mm from the top of the tube fully compressed with springs removed. This seemed to be the general consensus. However, when I drained the oil, only about 560cc came out. Hmmm... I decided to put in 682cc and the reading from the top of the tube was 107mm. Any ideas why the discrepency in oil amounts. By the way, my forks knock more now with the new oil which is 15W. Is it the "extra" oil, or is it the 15W I put in that is creating the extra knocking, or something else. I understand most Tigers have fork knock?