Finally this year after 5 years of riding various WRs in the woods I got new YZ450F. Actually I was third among our group to chaange the bike and I know the craze swept on and 2 other YZ arriving to WR owners before next season... What can I say - I only did running in hour today - put the organic Motul for this purpose and changed it to synt Motul afterwards. The bike feels very light and thin even after alluminium WR and prone to lift the front wheel any time. We lifted the head breather tube into the air filterbox and installed the hour meter. On the way are the ICO rally comp to keep track of kms and time, usual WR style radiator guards and acerbis hand guards plus the good old heavy glide plate. We all (new YZers) agreed to install similar larger tanks so as to match fuel quantity with WRs on a longer rides together. We already have nice halogen 1,5 hours life battery helmet lights. Some put the 18' rear wheel - some keep the 19. All with heaviest duty tubes. And yes- the latest and now the favourite mod - the Scotts damper (me still waiting for 08 version to appear). All that will make a very sweet and light WR (less the starter of course). From YZ forums I read that I might benefit from 51 rear sprocket. Hopefully I will like this set and by the end of the next season keep the bike I will update this thread with things I m sure I am to discover while using my YZ (our YZs) in the woods.