It's easy to say this after the event, but whenever changing to a non-stock brand of tyre always check the correct pressures with the manufacturers.

 

I know always kept it a 42psi.

 

This is another reason I only use Shinko tires. Spectacular CS! Over the years they have come to be the best I have used and when they were Yokohama they were just as good. Even though they know you ran them at too low of a psi they are sending you a new tire. Fella I know who had a Metzler with the flying off the tire chunking tread problem was told by metz to send the tire back so they could inspect it and would get back with them in 6 or so weeks. And maybe send out a new tire if it was their fault. I would be 1,500 miles into a new tire by that time. It dont cost metz any more to make a tire than Shinko, but shinko sells them for 1/3 the price of a metz, and sends out a new tire even after you told them you ran it too low by mistake. One more reason I will continue to use their tires.

I use the 130 also. Just never did get the obese tire fad. In corners and curves they require earlier line selection and are slow switching over to the other side. 130s hit the curves so much better. I run mine on a sportster though so I run them on the lower side of the spec just fine. What are you running the front 777 at? What size front you run? I like the 90/90 21" on mine best and of any tire in any size, the 21" 777 is the straightest tracking smoothest running front I ever ran. They could charge double the price and it would still be cheaper than the cool kid big brand name tires. Wet road performance is also unmatched.

I am happy they took care of you. Your ride should be alot better too when you get the right psi in them. I notice a 2psi drop in mine when I hit the curves and bumps hard so watch that psi!

 

I been running Shinko 777's on my Sportster for over 3 years now and love em. No cupping, great grip wet or dry, get 1 year out of the back and longer on the front and I commute 50 miles round trip every day. I'm very happy with Shinko tires. Change em myself BTW.

 

Appears like said earlier burnout or drag strip. i would also state that the tire appears maybe too wide for the rim causing growth in center especially at high speeds

 

I bought four brand new Yokohama for my 2003 Audi TT Quattro. I hit a pothole, and on the passenger side two tires blew out! Sidewall blowout, and the people that sold me the tires told me there was nothing they could do. I'm 50yrs old,not some inexperienced person with stuff like this, and I just knew the tires were defective because brand new tires at $190 a piece that will blow out on the first pothole means that Yokohama is making and selling defective product, AND from what I understand, Yokohama has something to do with this brand of tire. I will pay more money for the Dunlop and I will feel safe while I am riding them as my dunlop's are now dry rot and need to be replaced after 25,000 miles on my 2001 Harley Davidson Sportster that only has 25,000 miles on it so go figure on how old those tires are and how long they last for me I will pay that for the expensive tire so at least I feel safe while I am riding

 

Year and model of bike 1996 Road King
Ohlins shocks, Ev-13 cam

Mileage (when installed): 87,000

Tire Type: Dunlop D403

Front/Rear/Both: 7,000-8,000 rear and 25,000 front

Type of riding you do: mostly highway @ 70-80 mph. No aggressive riding. One 2,000-3,000 mile trip per year.

 

10 year old thread.