Would you change the tyres and tubes because they are old?
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Would you change the tyres and tubes because they are old?
Postby peter » Mon Oct 09, 2017 4:05 pm
Anyway, it got me thinking that may be it's time to refresh the tyre and tubes? They are not super old, around 7 years, Conti 4 Seasons 28's with matching Tour tubes. The tyres are not very worn but one of them has a deep cut from before, I used an emergency tyre boot to re-enforce.
MS Gong Ride is coming up in 3 weeks and a bit, so still have time if I order now. On the other hand, I'm not sure if that is completely necessary.
By the way, the new cycle way to Menai is amazing, albeit too short.
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Re: Would you change the tyres and tubes because they are old?
Postby 10speedsemiracer » Mon Oct 09, 2017 4:38 pm
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Re: Would you change the tyres and tubes because they are old?
Postby Thoglette » Mon Oct 09, 2017 4:54 pm
The former. Unless you left the tubes in the sun. But it does sound like one of your tyres is cactuspeter wrote: I forgot how to properly change a tube or the tubes degraded during storage.
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Re: Would you change the tyres and tubes because they are old?
Postby madmacca » Mon Oct 09, 2017 4:59 pm
If you are pinch flatting, perhaps up the air pressure. You may also want to carefully check (by feel as well as visually) for any embedded glass or foreign objects on the inside of the tyre.
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Re: Would you change the tyres and tubes because they are old?
Postby cyclotaur » Mon Oct 09, 2017 5:11 pm
I actually put brand new tyres on my bike last week. I was hoping I wouldn't get a flat as it took me a lot of effort getting the new ones on the rims to start with, but on balance I'm glad I had the new tyres.
My old ones were only 10 months old but had minimal use (<200km?) - I must admit the only reason I changed them was to swap to 28s for the 200km ride.
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Re: Would you change the tyres and tubes because they are old?
Postby eeksll » Mon Oct 09, 2017 5:32 pm
Also how big of an event is the MS Gong to you? If it is a big event then go the new tyres and tubes.
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Re: Would you change the tyres and tubes because they are old?
Postby peter » Mon Oct 09, 2017 7:08 pm
The cut is only a couple of mm, a small one, but close to the side wall. I have been riding with it for many hundred kms, so it's holding up well.
In the scheme of things a new set of tyres is probably not a huge deal, I will go ahead to have them replaced. Tubes are consumables anyway.
The Gong ride is only a social ride for me, but I have been telling people about it, so it would be good to go and actually complete it. I have done it many times before, but the upcoming one is the first after a long break.
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Re: Would you change the tyres and tubes because they are old?
Postby RonK » Mon Oct 09, 2017 7:32 pm
For peace of mind I’d replace tyres and tubes. And also inspect the rim tape and maybe replace it too if showing any signs of deterioration.
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Re: Would you change the tyres and tubes because they are old?
Postby ironhanglider » Tue Oct 10, 2017 9:35 pm
However, I recognise that tyres are relatively fragile. It only takes one piece of debris to destroy a tyre, and if that happens on a Sunday afternoon and I have to ride to work on Monday that could be a problem. As a result I always have spare tyres on hand. Fortunately for me I do enough kms to wear out a few tyres every year so my spares are always turned over.
I do know people who carry spare tyres with them when they ride. In the event of a puncture they put a new tyre and tube on, to eliminate the possibility of a repeat puncture from an undiscovered cause.
In short, definitely buy new tyres now. Whether you replace them or not will depend on their condition.
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Re: Would you change the tyres and tubes because they are old?
Postby Patt0 » Wed Oct 11, 2017 9:22 am
2-5 years is the cherry for most rubber compounds. I replace the rubber on all my vehicles if they reach 5 years.RonK wrote:7 years old is quite old to my thinking. Rubber can harden and crack over such periods. .
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Re: Would you change the tyres and tubes because they are old?
Postby foo on patrol » Thu Oct 12, 2017 8:55 am
Foo
Goal 6000km
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Re: Would you change the tyres and tubes because they are old?
Postby bychosis » Thu Oct 12, 2017 9:49 am
I've got a stack of tubes with patches that I have no idea how old they are, but I keep using them until the valve goes, or there are too many patches. Some stored in tyres inflated, some hanging in the shed, some folded and carried around for roadside flats. They all get interchanged fairly randomly so I have no idea of age or kms on them.
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Re: Would you change the tyres and tubes because they are old?
Postby Thoglette » Thu Oct 12, 2017 11:46 am
When it comes to tubes the older the better (there's a thread on poor quality of modern tubes and tube rubber somewhere)bychosis wrote:so I have no idea of age or kms on them.
I've just thrown out a tube that was, as far as I can work out, about 35 years old. Patched umpteen times but kept out of the sun. Finally, it failed around the valve insert, as is often the way
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Re: Would you change the tyres and tubes because they are old?
Postby peter » Fri Oct 20, 2017 12:07 am
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Re: Would you change the tyres and tubes because they are old?
Postby jules21 » Fri Oct 20, 2017 11:12 am
tyres - same deal. it's easy to see if a tyre has perished. it will be brittle and with mini-cracks in the tread.
other than those symptoms, I wouldn't replace either tubes or tyres that appeared to be in good working order.
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Re: Would you change the tyres and tubes because they are old?
Postby human909 » Fri Oct 20, 2017 1:31 pm
I dare not think how old the tyres are on my old loan bike are... Probably around 20 years old. It still gets regular use.
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Re: Would you change the tyres and tubes because they are old?
Postby eeksll » Fri Oct 20, 2017 2:09 pm
The front tyre on my other commute bike (old road bike) is also about 5 years old and there are cracks all through the tread. I had thought it was fairly safe based on sheldons page but I don't really know otherwise. It is a gp4000s tyre.
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Re: Would you change the tyres and tubes because they are old?
Postby jules21 » Fri Oct 20, 2017 3:10 pm
it's probably safe enough for shopping trips. I wouldn't descend Mt Baw baw on iteeksll wrote:The front tyre on my other commute bike (old road bike) is also about 5 years old and there are cracks all through the tread. I had thought it was fairly safe based on sheldons page but I don't really know otherwise. It is a gp4000s tyre.
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Re: Would you change the tyres and tubes because they are old?
Postby uart » Fri Oct 20, 2017 4:36 pm
A while ago I had an old bonterager tyre that looked in perfect condition (rubber looked perfect), when I had a puncture due to a small piece of glass that worked its way through the tread. Even though it was just a tiny cut (like about 2mm), the casing totally lost it's integrity and start to distort slightly at that spot. I know should have ditched that tyre straight away, but I continued to use it for a few weeks as it was just an old commuter.
Anyway, one day a few weeks later I was riding home when I noticed a LOT of pulsation from my front wheel so I stopped to take a look and sure enough that slight distortion had suddenly ballooned out to massive bulge. I immediately let out about 15 psi and gingerly tried to nurse it home (about 15 km away), but literally only 100m later it explosively blew out with about a 10cm rip in the tyre. Never in my life have I seen such a sudden catastrophic tyre failure!
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