In my experience the thing that screws up the frount end most of all is soft forks & not enough tyre pressure. Standard springs seem to go dangerously soft by the time you have done over 20k KMs. Holding the bike at standstill & bouncing the frount end, mine was like a fekking rockinghorse ( same with a mates bike) .I put progressive springs in ( well MPE in Beerwah, Queensland did) & the frount is transformed. much stiffer & corners SOOO much better. I also reckon 41-42 psi makes a huge difference in the tyre ( better) than if youve let it drop to 38 or so.