I need some magic tricks on how to remove an impossible front sprocket nut.. :roll: the bike is a 1997 yzf600r with 36000kms, the offending front sprocket isnt the stock one. the bike engine was only luke-warm at the time. WD40 was applied prior to the attempt. with some maticulous help from Lordtb (I highly recommend him for any work you need done!), the rear sprocket and chain were not a problem, but the front sprocket wouldnt budge. we ended up trying a suitable size socket into something like a 1/4 inch bar (the weak point), going into a 2m brass pole. also a bar through the rear wheel instead of using the rear brake. with quite a lot of force, the small bar ended up bending but not the slightest move from the bolt :?