I started out with Dunlop 205's and kept them for the first 25,000
miles. At that point I switched over to Metzler MeZ4's and found them
to be better than the Dunlops. With the introduction of the Metzler
Z-6 and the resultant unavailability of the MeZ4, I switched over.
That was about 30,000 miles ago, and I'm still happy with the 6's.
Will probably stay with them as long as I've got the bike.
Oil. during the last eight years while Millerbuilt was doing my
service, I was getting Amsoil, service every 6000 miles. No
complaints about the results. Bill Miller absolutely refused to use
Triumph branded Mobil 1 4T calling it, "An overly expensive line being
perpetrated by Hinckley."
That might have some bearing as to why he's not a Triumph dealer
anymore.