Truck Tyre Problem - Any Ideas?

[Tonner]

I am a bit bored I guess, but ;)

The 5 tonne truck blew a driverside steer tyre this afternoon, I was RH lane in 100k highway when I really had a tough time holding it on the road to stop it going down the 6' deep median strip.

But I cant figure why it blew, I noticed two bumps in the sidewall eitherside of the info placard this morning when I washed it, didnt give it too much concideration except to call in and get it checked sometime soon.

The tyre is Goodyear 225x 90r 17.5 SP 350 with 95-98% tread.
Do you think I may have staked the tread and air leaked into the sidewall? Then what made it blow on a straight road?

[mmciau]

If it is "tubeless", you may have had 'ply spread" where the inner film "fractures" and allows air to get into the plys - it develops a bubble, loses pressure, gets hot through case distortion and case fails!!

Mike

[ED]

Similar to as stated before hand. I have had my fair share of blow outs with my 11R 22.5s over the past 10 years. Sometimes they are just a shit cast tyre that 'egg' in the tread (read perish) and as soon as they get hot, ba boom.

[Tonner]

I wonder how I would go making a claim from Goodyear, when I don't know where it was bought from new ? It had spent probably a year or two as a new spare.

but really thats the last of my problems , my wife was with me and she is still in shock, she doesn't usually drink but tonight she went down the road and bought two bottles of bubbly and drank most of that before heading straight to bed.
she said she saw her life flash before her eyes today, when the truck dropped down and swung onto the grass smashing a guide post, she thought I would not get it back on the road,
Pretty scary cos if we did go down in the deep median strip ,it would have came to a stop slaming into fill where the gully ended to form a crossing between the east and westbound lanes. it would have gone on its side before hitting that.

[xshore]

Some truckies I've spoken to say they don't go over 90km/hr when its sun up due to heat build up, than after sun down they can go over 100km/hr all night. Mind you I've never seen a truck not doing its max speed in the middle of the day. Also each time you hit a curb it weaks its walls apparently.