Info please about metal tyre valves/cores and metal caps

Podney

Podney

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As some will know,I recently posted about Nexen tyres. They offer a tyre called Nexen Roadian CT8.

I have now received a quote for 5 new tyres at £94 each,which includes fitting,valves,and wheel balancing. Not bad, I thought.

But I then asked 2 questions:

1. Will the tyres all be the same date of manufacture? Answer,no idea,and no way of knowing till they arrive and can see the date code.

2. Can I please have metal valves/cores,and metal caps? Answer,sorry don’t know anything about those,despite asking a local caravan and motorhome dealer,and a national tyre fitting company.

The garage giving me the quote is fairly new in the area but the guys seem to know what they are doing,so I want to support them if possible. It’s really the issue about the valves that I wish to know about.


So can anyone please educate me about tyre valves,and make any suggestions???

Many thanks....again!!
 
Tr600 are good but they need to be fitted with kid gloves.
My local tyre guy damaged 2 on fitting. He knew straight away so removed them.
I then supplied him with 4 new metal valves and no issues.
 
Standard rubber valves are only good for up to 65psi so no good for many Moho or van tyres and defo not Michelin's at 80psi. Metal valves are good to 200psi when the tyre will explode anyway.

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The usual rubber valve stems don't cope very well with 5.5bar pressure that some manufacturers quote for tyre pressures. The valve inserts are just the same as used in rubber

Metal caps are not a great idea as they corrode and are a bugger to get off when needed. Never at a great time usually
 
Podney said:
As some will know,I recently posted about Nexen tyres. They offer a tyre called Nexen Roadian CT8.

I have now received a quote for 5 new tyres at £94 each,which includes fitting,valves,and wheel balancing. Not bad, I thought.

But I then asked 2 questions:

1. Will the tyres all be the same date of manufacture? Answer,no idea,and no way of knowing till they arrive and can see the date code.

2. Can I please have metal valves/cores,and metal caps? Answer,sorry don’t know anything about those,despite asking a local caravan and motorhome dealer,and a national tyre fitting company.

The garage giving me the quote is fairly new in the area but the guys seem to know what they are doing,so I want to support them if possible. It’s really the issue about the valves that I wish to know about.


So can anyone please educate me about tyre valves,and make any suggestions???

Many thanks....again!!
Click to expand...

Do your present rims that you are going to re-tyre, not already have metal valve stems ?
 
If you already have metal valves you only need to replace the core., they are the same as standard valve cores.

Tyre dealer regard tyres up to 2 years old as new. The Toyo's I bough last year were 9 months old didn't bother me as they will be worn out in 3 - 4 years.

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Two on Tour said:
Do your present rims that you are going to re-tyre, not already have metal valve stems ?
Click to expand...
Ah! I think I get it now.....Schoolboy error,I didn’t realise the valves are part of the rims. Currently on Michelin Agilis at 80psi,so guess they must be metal valve stems or they’d have gone bang by now. I’ll get the fitters to check. Thanks.
 
Lenny HB said:
If you already have metal valves you only need to replace the core., they are the same as standard valve cores.

Tyre dealer regard tyres up to 2 years old as new. The Toyo's I bough last year were 9 months old didn't bother me as they will be worn out in 3 - 4 years.
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Thanks. I was going to reject tyres more than 6 months old,but I’ll rethink that.

I get your point about the valves,thank you.
 
Big thank you to everyone who has responded....very useful! :giggle: :giggle::giggle:
 
TheBig1 said:
Metal caps are not a great idea as they corrode and are a bugger to get off when needed. Never at a great time usually
Click to expand...
Yep, I've had the threaded end of the valve crumble when I took off a metal cap..... Wouldn't have been so bad but the valve incorporated the TPMS.

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When using the metal valves with the correct metal valve caps I found it efficacious to just apply a small dab of copper anti-seize grease to the thread of the cap . Worked well on land-rover used in arduous conditions over decades . :)
 
Podney said:
Ah! I think I get it now.....Schoolboy error,I didn’t realise the valves are part of the rims. Currently on Michelin Agilis at 80psi,so guess they must be metal valve stems or they’d have gone bang by now. I’ll get the fitters to check. Thanks.
Click to expand...
The valves are not part of the rims. The metal ones are in two halves and screw together through the rim.
 
Podney said:
Ah! I think I get it now.....Schoolboy error,I didn’t realise the valves are part of the rims. Currently on Michelin Agilis at 80psi,so guess they must be metal valve stems or they’d have gone bang by now. I’ll get the fitters to check. Thanks.
Click to expand...
At 80psi you must have a very hard ride
 
denisejoe said:
At 80psi you must have a very hard ride
Click to expand...
Yes! But that’s what Michelin suggest,as does the plate on the van,so that’s what I was doing. Despite that,now reduced to 65 on fronts which is better. Have fitted new Hankooks on rear as not convinced that Michelin are any good,my rears were cracking in the side walls at 5 years old. I will put Hankooks on front and spare within the next year.
 

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