These bike tyres are as good as run flats!

[halfabusa]

i'm quite anal when it comes to inflating tyres. i bought a good electric pump some time ago which has a digital gauge and i use that to pump up the tyres. What i do is i pump a bit more than needed, then deflate to the number i want, wait for the gauge to stabilise and then take it out the valve. You do lose a bit when taking out from the valve, true, that's why i pump it just a tiny amount more than i wanted to negate that loss.

What on earth is sticktion variance ???

[MjW]

Now you made me wanna check the tyre pressure. lol


TA-pa-TA-pa-taPAtalk

[slipperyeel]

I was running Bridgestones on the Tmax and was also a bit fussy about their pressures. I generally ignore the handbook when it comes to tyre pressures and use the manufactures advice (on bikes anyway). I ran the Tmax with 36/36. When they quietly lost some pressure (those flippin road humps mostly responsible for this being quicker than normal) I would find them at approx 33/33. So clearly I could tell the difference of 3-4psi.

Oh, I always use the same garage pump to top up in te vague hope of there being some consistency. I would have to add air approx every 3wks depending on how much riding.

[MrGrumpy]

Diving off at a tangent, when I get tyres fitted at dealers I get them to inflate them to the right pressure, but when I get home and check them with my gauges, they are always way underinflated. This happens at more than one dealer. I've actually got more than one gauge, and all my gauges agree, but my gauges disagree with dealers! Are my gauges all reading too high????

[halfabusa]

more likely that the dealers didn't bother what pressure they were pumping up to. Did they all have better quality gauges than your ones? If that's the case, your gauges might not be calibrated good enough.

[Data]

Thanks data, i know there was another recent thread where ultraseal was discussed and i did post in there about my experience with that stuff but you must have missed it.

I used this on my previous burgman and followed the instructions (measure it up right, deflate, fill in, inflate, turn around the tyre, etc) but when i did have a puncture some time later, it didn't seal and i took it to the shop only to be told that they can't repair the tyre due to that stuff in it and i'd need a new tyre.

So i just stick to the old way now and just use a plug to seal any punctures.

It was the same brand i purchased off ebay (ultraseal) but somehow it didn't work for me.

It might have been due to the product being fake or me having used it improperly, but regardless of why it didn't work last time, I don't want to risk having to change a tyre again.

Out of curiousity though, do you reckon if i had it in the tyre that it would have sealed this rip that i pictured above? It's not a conventional hole so i thought the only way forward was a new tyre.

Hi Halfbusa,

That's unfortunate you didn't have success with it. I've never known it not to work, but cleary, there will be times. However, if the hole is bigger than 6mm then it won't usually always do the trick. But 6mm is very big! The tyre place you took your wheel to for repair were incorrect in what they told you. If Ultraseal has been used in a tyre and you still want to go for a conventional repair, you can. Ultraseal is non toxic and just washes out of the tyre with ordinary water. Not a messy job. A normal repair can then be carried out. It's not like the 'one shot' tyre repair inflation cans of get you home stuff, that once used, it buggers the tyre and it cannot be repaired in the normal way. I suspect the tyre place just weren't up to speed with their Ultraseal knowledge, and of course, they want to sell you a new tyre. It's perfectly possible Ultraseal would have sealed the problem with your tyre recently. It would just depend on how big a problem it is in reality. On the note about Ultraseal 'giving out' at maximum speed. That just won't happen, once fixed it doesn't leak from the same spot ever again. The DOT tested it and found it to be considerably better than a conventional patch or a plug. So good that it doesn't need a speed restriction placed on any tyre it fixes, unlike a patched repaired tyre. And that's something not to forget because a repaired tyre in the conventional way is limited in speed after repair to avoid the plug or patch being affected by heat and failing (80mph if I remember correctly). Ultraseal tyres are safe to 176mph now even if previously punctured and sealed with Ultraseal (that's subject to the tyre speed rating in the first place though).

To you guys who have had trouble with whatever sealant you put into your tyres blocking valves, I've never heard of anything like that before with Ultraseal. It could happen if the wheels are 'overdosed' with sealant. But that's really the only time. Ultraseal will not ever interfere with valves and we had it in our service vehicles, and I've used it for years in bikes and cars without a problem. But following the instructions on dosage, that's important. Too little and it won't seal, too much and it could cause valve problems. It's easy stuff to measure out though, so it should not be a problem.

[Data]

Diving off at a tangent, when I get tyres fitted at dealers I get them to inflate them to the right pressure, but when I get home and check them with my gauges, they are always way underinflated. This happens at more than one dealer. I've actually got more than one gauge, and all my gauges agree, but my gauges disagree with dealers! Are my gauges all reading too high????

Maybe you have poor quality wind!!... Must be something to do with temperature. Inflated in a warm environment at the workshop maybe and when checking them the next morning they are cooler and under read. That's really the only thing I can think of.