there've been through quite a number...
my last of the original Mk1s came as std with 329g bar weights, earlier stuff was lighter, later stuff was lighter, LCs went to feather weight trash... the Cymark ones I think were 260g and its not enough to make any difference on an LC
although parts drawing doesn't agree with what's on my bike when I bought it new
2004 model year
08 Handlebar vibration absorber 300G 2 32717673846 $41.17
2007 model year
08 Handlebar vibration absorber 300G 2 32717673846 $41.17
2008 adventure
04 Handlebar vibration absorber 300G 2 32717673846 $41.17