Tyre pressures

[Marcus]

Over the past two weeks I have had 7 punctures. I usually run 110-120 psi front and back. I put new Continental Ultra on last week and have suffered 3 since, two of these have been pinch puntures, I think. I have pumped up to 100 ad 110 psi with the new tyres but still got flats.

I have a decent track pump (paid £40) so I'd like to think the gauge is accurate. I weigh 90kg.

What can I do to reduce this number?

[Ivor]

[quote]What can I do to reduce this number?

[Dombo]

Maybe pump them a bit higher. I'm 65kg and run the same pressure as you, and I don't get pinch punctures. That's with Conti 4000S tyres, which have a recommended max of 120psi. Vredestein Fortezza Tricomps are maxed at 175psi. Both probably have a margin of safety a few psi over.

[Andrew G]

[quote="Dombo"]Maybe pump them a bit higher. I'm 65kg and run the same pressure as you, and I don't get pinch punctures. That's with Conti 4000S tyres, which have a recommended max of 120psi. Vredestein Fortezza Tricomps are maxed at 175psi. Both probably have a margin of safety a few psi over.

[Marcus]

I ride approx. 3-5 times / week. I already check for flints and Use Andrew G's tip of filling in holes and cuts with Super glue, which works a treet.

The roads I ride are probably the cause, many seem to have gravel and flints and poorly kept, I have also had two cuts in the tyre sidewalls recently

Advice to self - don't ride down roads covered in flints orgravel.

[Mike I]

[quote="Ivor"] we've all had a week of constant punctures.... and I haven't had one for ages - months.

[quote="Mike I"][quote="Ivor"] we've all had a week of constant punctures.... and I haven't had one for ages - months.

[Dominic]

I thought I read on a tyre thread on YACF many moons ago that Continentals are particularly prone to flint induced punctures. My only experience with Conti HPs was Gatorskins and I had 4 punctures in one 200k ride when they were brand new

[Marcus]

[quote="Dominic"]I thought I read on a tyre thread on YACF many moons ago that Continentals are particularly prone to flint induced punctures. :

[Andrew G]

I always tend to run Contis and don't have any problems. Some cut a bit more than others - 3000s cut quite a bit and 4Seasons which are pretty much the same but with an added puncture protection belt, 4000s hardly seem to cut at all despite being a soft compound race tyre.

I run 4000s on my good bike and 4 Seasons on my winter/commuter, think it's a mix depending on what I had on fixie etc.

I don't think 25s will make any difference to cuts, they will give a bigger contact patch and be a bit more comfy. I've run some in the past (Panaracer Extreme Duro) which are very good, still got a spare pair to go on at some point.

[George]

Mark go for continental 4 seasons for best puncture resistance commuting or clubrun

go for gatorskins if you want some grief with punctures

avoid conti 4000 at all costs

but conti 4000(S) is the best winter training/racing tyre

[Marcus]

Thanks guys, I have been considering the 4 seasons and will definately get some now. Will stick with 23s.

Hopefully my quota of punctures are now over, as I had another 2 yesterday. I may have to go back to mountain biking for the winter.

[Andrew G]

That is a lot of punctures. Are the rims okay? You haven't got a chip or anything that might be cutting in have you? Maybe just a faulty batch of tyres, the amount that are made there's bound to be a few iffy ones get made.

[Marcus]

[quote="Andrew G"]That is a lot of punctures. Are the rims okay? You haven't got a chip or anything that might be cutting in have you? Maybe just a faulty batch of tyres, the amount that are made there's bound to be a few iffy ones get made.

[Rob W]

i have been using Vittoria With the green strips for training and the blue strips for my good bike and racing and touch wood had very little trouble.Although by joining in this post i have probably doomed myself to many punctures now.