Tire "in and out wobble" in 1st on Paddock Stand.

[TriumPhil]

I agree that the tire appears to be out of round and, apparently through no fault of your own. Perhaps remounting the tire to your wheel will help to eliminate some obvious potential cause(s) of the the problem.

Have you checked to see how old the tire is? It is possible, I would think, that either the tire was defective to start with either due to a manufacturing error or, if it's an older tire that was improperly stored, that the tire's integrity was adversely affected because of that.

One more thought, and I'm simply guessing here, isn't it also possible that viewing the tire under a no-load condition could make a minor defect appear as a more dire defect?

 

[xlr8tion]

I agree, the tyre is not seated correctly.

Thanks guys!

I mfg'd a run out stand from a bottle of Prestone Windshield washer and a piece of tape.....I also Aerospace 303'd the tire to take out any light anomalies....Looks like a 1/8" runout. When I turned the tire by hand I noticed this on what seemed to be one half(appx) of the tire and not the next. I checked the bead seating and it looked good on both tires...I will check it again as I did that first in a hurry.

Here is my high tech run out reference. If you are not handsome you better be handy!

BTW....can I reseat that myself or does the wheel have to come off?

Thanks...G

 

[Triple Trouble]

You should be able to turn the wheel by hand and find the low spot.

 

[xlr8tion]

I agree that the tire appears to be out of round and, apparently through no fault of your own. Perhaps remounting the tire to your wheel will help to eliminate some obvious potential cause(s) of the the problem.

Have you checked to see how old the tire is? It is possible, I would think, that either the tire was defective to start with either due to a manufacturing error or, if it's an older tire that was improperly stored, that the tire's integrity was adversely affected because of that.

One more thought, and I'm simply guessing here, isn't it also possible that viewing the tire under a no-load condition could make a minor defect appear as a more dire defect?

Phil...The tire has a MFG code of DJK 1215 so the the last week of March 2015-it is less than a year old.

Secondly I paid a TRIUMPH DEALER 700 dollars to mount the tires and the brake pads and the plugs(forgot to do that) which entailed spin balancing the tires.

The point is...How could a tire be MOUNTED AND SPIN BALANCED BY A TRIUMPH TECH and miss such an obvious issue? That's why I pay 80 dollars an hour is not get FUBAR'd and if the the tire was defective(what are the odds of that- really) they would not mount it so if we stick with occams razor the Tire is probably not defective due to manufacturing. It's a Bridgestone purchased from Dennis Kirk...11 months old...9 when it was mounted.

Being a safety issue...does anyone know if I can deflate and reinflate the tire to a high PSI to try and seat the bead better?

Need some advice guys on how to reset that bead...What is the max PSI I can inflate that exedra max to and let it sit over night?

Cheers.....G

 

[xlr8tion]

You should be able to turn the wheel by hand and find the low spot.

I have....what am I supposed to do after that?

According to Bridgestone's Mfging process the defect rate is 0.11%..That is 1.1 tires in per thousand...And that one got past QC and got to me through Dennis KirK? Wow.....My lucky day!

INSPECTION

The final check of each tire is a pair of human hands and eyes. Quality control workers check for shape and any defects, measuring and examining the finished product. Less than 0.11% don’t pass muster. As for the remaining 99.89%, they are stored on large racks and then shipped out the back door for worldwide distribution.

 

[TriumPhil]

I have no faith whatsoever in Triumph techs, given the consistently abysmal experiences I've had at their hands, G.

 

[GRIBINI]

Thanks guys!

I mfg'd a run out stand from a bottle of Prestone Windshield washer and a piece of tape.....I also Aerospace 303'd the tire to take out any light anomalies....Looks like a 1/8" runout. When I turned the tire by hand I noticed this on what seemed to be one half(appx) of the tire and not the next. I checked the bead seating and it looked good on both tires...I will check it again as I did that first in a hurry.

Here is my high tech run out reference. If you are not handsome you better be handy!

BTW....can I reseat that myself or does the wheel have to come off?

Thanks...G

G,

New here but watching the first video and like others I think the tyre hasn't beaded to the inside edge of the rim at points. The last rear tyre ( Metzler) I had fitted a couple of months ago took four attempts to get it to seat. This is due to the design of the rim which doesn't have a dip in the centre causing the bead to drag as it's inflated and causes the wall to roll down on to the edge of the rim looking as though it's sealed but reduces the profile - hence the 'in / out'. You'll need the wheel off the bike and tyre deflated again before cleaning the inner edges to stop it dragging, applying bead sealant and re-inflating. Here's a rough sketch of what I mean, hope it is this as it's easy to sort out!

Easiest way to check is to measure from the edge of the rim to the start of the tread line around the tyre, differences will will tell you if the bead has rolled under. Unfortunately higher pressure doesn't normally move it out, we tried along with bouncing the wheel....

Regards

Phil

 

[xlr8tion]

G,

New here but watching the first video and like others I think the tyre hasn't beaded to the inside edge of the rim at points. The last rear tyre ( Metzler) I had fitted a couple of months ago took four attempts to get it to seat. This is due to the design of the rim which doesn't have a dip in the centre causing the bead to drag as it's inflated and causes the wall to roll down on to the edge of the rim looking as though it's sealed but reduces the profile - hence the 'in / out'. You'll need the wheel off the bike and tyre deflated again before cleaning the inner edges to stop it dragging, applying bead sealant and re-inflating. Here's a rough sketch of what I mean, hope it is this as it's easy to sort out!

Easiest way to check is to measure from the edge of the rim to the start of the tread line around the tyre, differences will will tell you if the bead has rolled under. Unfortunately higher pressure doesn't normally move it out, we tried along with bouncing the wheel....

Regards

Phil

Thanks GRIB and Phil....What is the risk of riding on it as it is until I pull the wheel....Some guys in my motorcycle group think a little run out is acceptable...I don't but if it were a flat spot on the tire(GRIB I will measure as you suggest) would that not been out as the tire wears?

Thanks so much guys!....G

 

[TriumPhil]

If it isn't seated properly on the bead(s), you're asking for trouble. Not worth the risk, IMHO, Greg.

 

[GRIBINI]

Thanks GRIB and Phil....What is the risk of riding on it as it is until I pull the wheel....Some guys in my motorcycle group think a little run out is acceptable...I don't but if it were a flat spot on the tire(GRIB I will measure as you suggest) would that not been out as the tire wears?

Thanks so much guys!....G

G,

It's possible you won't have an airtight seal and could have a slow leak where the bead has rolled under. Best way to test is to pump the tyre up and brush soapy water around the rim edge to check for leaks. If it is the bead I wouldn't ride it for too long before getting it sorted as it could put unwanted stress on the sidewall of the new tyre.

Phil