My bike has maybe 20K at most miles on it.
I had close to bald tires on and could go about 130mph "wind to my back!" and ran perfectly stable other than the wind was nasty at those speeds!
I do have a windshield that saves me.
1. I went in and put two new tires on.... both Metzlers on Front and back.... the rear was a radial not sure about the front but at any rate developed a front end wobble at speeds 85mph +... most pronouced over 100 mph.
Yes people say "you don't need to be going that fast"...
Please allow me to justify myself!
Well all I can say is when your cruising at 75mph and 4 and 18 wheelers start boxing you in, you need sudden speed to climb out of a hole and get out in front of the mess before it closes in on you and you find yourself trapped in peoples blind spots and behind slow goers in front and tailgaiters in back!
In those sudden burst, its quite easy to reach 100mph for a few seconds before you coast back down to cruising speed in front of the crowd.
The worst thing to happen is to blast in front of a crowd only to do a show worthy of selling tickets too.... yes, the watusy dance, and in front of everybody!
Not only is it dangerous but quite "non dignified"!
A bike should be stable to its max WOT... period IMO.
I took it to the victory dealer and was told by the service manager and two other techs I needed to tighten my steering bearings.
I told them it didn't do it before the tire change, why should I chase expensive rabbit trails doing things that may improve it a tad but never address the real issue?
I told them I would rather do it the other way around... get me riding stable again, then we can talk about routine maintenance!
Sorry, but its hard to find real mechanics that can diagnose a problem.... any grease monkey can look at the book and see when things are due and start replacing parts at the customers expense until the problem if finally fixed thousands of dollars later!
I checked to make sure they were placed with the right rotation, balance point was at the stem etc etc.
I didn't have a out of balance feel like would get when at certain rpms the tire wants to vibrate, this was more of a "wobble".. the front end started "weaving" like it was doing in and out of dimes placed every 50 feet on the pavement..... most annoying.
Enough ranting..... a great Mechanic at another shop didn't agree that it was the front steering bearings as they were fine but thought it could be a mismatch of bias verse radials.
Bingo!.. I also got the dunlop rep to call me back and he said my bike "2004 Vegas" needed to have bias tires "not" radials which have thinner sidewalls and are dependent upon modern suspension to run properly.
To make things even more confusing...
I couldn't find my size tire in a bias version "180/55/18" without going back to the dealer.
Get this!!!! Victory calls for the rear to be a D417. When you look that up on the internet it comes back as a 160 16" rather than a 180 18"!
I found out from the Dunlop rep that only from Victory Corporate can you get that tire and its called a D417.
To make matters even worse, the Victory corporate website "their supply" had the tire mislabeled as a 5.5 X 18 which is equivalent to a 140 size tire much smaller.
We had to get the stock supply guy to go put his hands on it to verify it was really a 180.
At any rate when I took the radial Metzler off and the Dunlop D417 all my problems went away !... I can now run Full WOT and its rock solid again!
For anyone with similar problems, I'm running the bias ply Dunlop Elite 3 on front and it does well.
It took me 3 weeks of driving these poor tech crazy until we finally found the problem so I thought I surely wanted to share.
I'm sure many put the radials on and swear by them on the older bike and never had issues.. but I bet they keep their speeds down too!
Some bikes just have to have the bias tires and some don't.
If you develop front end wobble at high speeds immediately after tire replacement, I would look into this for sure!
One last note... tire pressure should be on the high side of range if you intend to run at high speeds according to Dunlop.... basically the same as for 2up riding.