Yamaha has had alot of issue with slider wear on ther 05 and 06, alot of guys are putting the larger Kimpex idler wheels on and open all the track windows.. it has seemed to do the trick...My 07 Venture has all the windows on the track open, the windows are larger and there are some extra wheels in there..I have not noticed any slider wear yet..I have 1200 miles on so far...