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Tyre advice - Nobby Clark

Hi all.

I collected a new car yesterday, thanks to SLO who found it on Autotrader for me!! :)

Anyway, it was MOT'ed at the beginning of September and the advisory was that 1 front tyre had a cut in the side wall. So now I've collected the car I don't like the look of the cut and I want to change the tyre.

The tyre on the opposite side is perfectly fine but am I right in thinking that the tyres on the same axle should match?

If so and I cannot get the same tyre, should I then buy 2 new tyres?

Thanks everyone - Nobby :)

Tyre advice - SteveLee

With the advent of traction control/abs etc, the difference in grip between tyres is far less important than it used to be, the electronics will keep the car straight almost regardless of the grip on offer. However, having a matched pair on the driven wheels (wear wise) is sensible to avoid the risk of the TC being fooled into thinking there's slip and cutting on early and/or reducing the likelihood of snaking/torque-steer from mismatched driven wheels . I'd put the (presumably currently matched) rears on the front, moving the other front and replacement tyre to the rear.

Tyre advice - corax

With the advent of traction control/abs etc, the difference in grip between tyres is far less important than it used to be, the electronics will keep the car straight almost regardless of the grip on offer. However, having a matched pair on the driven wheels (wear wise) is sensible to avoid the risk of the TC being fooled into thinking there's slip and cutting on early and/or reducing the likelihood of snaking/torque-steer from mismatched driven wheels . I'd put the (presumably currently matched) rears on the front, moving the other front and replacement tyre to the rear.

I'd agree with SteveLee, but regarding buying tyres in the future try to get a type with a soft sidewall. That model of Honda can be prone to tramlining, and hard sidewalled tyres like Bridgestones (particularly on 17 inch wheels) were the cause. At the time when they were popular, there were many reports from owners about this.

Edited by corax on 01/10/2018 at 21:27

Tyre advice - KJP 123

It is just an advisory so not really dangerous. How worn are the tyres? Do you have a full size spare you could use? Same tyres with vastly different tread depths don’t really match. But yes, tyres should match.

Tyre advice - Andrew-T

It is just an advisory so not really dangerous. How worn are the tyres? Do you have a full size spare you could use? Same tyres with vastly different tread depths don’t really match. But yes, tyres should match.

Yes, if the damaged tyre still holds pressure, and your car has a matching spare, just swop them over - job done. Sadly that won't apply to many modern cars.

Tyre advice - Engineer Andy

With the advent of traction control/abs etc, the difference in grip between tyres is far less important than it used to be, the electronics will keep the car straight almost regardless of the grip on offer. However, having a matched pair on the driven wheels (wear wise) is sensible to avoid the risk of the TC being fooled into thinking there's slip and cutting on early and/or reducing the likelihood of snaking/torque-steer from mismatched driven wheels . I'd put the (presumably currently matched) rears on the front, moving the other front and replacement tyre to the rear.

Similarly for 4WD cars that (as HJ says) cannot accept one worn tyre and one not, or two very worn on the front or back and two new ones on the other axle. Unless the tyre has only worn down to 5mm from 7mm when new, I'd replace mine in pairs (fronts or rears) and would steer clear of part worn tyres as their quality/integrity cannot, IMHO, be guaranteed.

On FWD, you should always put the new tyres (if you're only replacing a pair on one axle) on the rears and move the rear tyres to the front, to avoid the back end stepping out when cornering (especially sharply, e.g. on roundabouts) in slipperly conditions. Not sure if the same applies to RWD cars though - some people advocate doing the opposite, which I'm not sure about at all.

Tyre advice - SLO76
Unless you’re planning on taking it on regular track days or you’re prone to licence losing ton up blasts on the motorway you can relax. Just buy a good midrange tyre and sleep easy. I like Hankook which offer decent grip and reasonable value. The marginal difference in grip will be unnoticeable.

Hope it serves you well, it certainly looked very fresh in the advert.

Edited by SLO76 on 01/10/2018 at 21:50

Tyre advice - Nobby Clark

Thank you for your help everyone! :)

Tyre advice - John F

If you are worried about the possibilty of a blow out, inflate the tyre to the maximum pressure allowed for a day or so (it's written on the side of the tyre) and drive carefully but occasionally 'stress' the tyre with some harsh braking. Surviving the test will give you peace of mind. Thick car tyres run at very low pressures compared with thin bicycle tyres (often >100psi) so even with canvas showing (if still used) or bits of steel mesh poking through they rarely 'blow out'.

These so-called 'advisories', much valued by the garage trade, are misnomers, leading you to believe you have been 'advised' to repair or replace something. They should be called 'alerts'.

Edited by John F on 02/10/2018 at 12:43

Tyre advice - skidpan

If you are worried about the possibilty of a blow out, inflate the tyre to the maximum pressure allowed for a day or so (it's written on the side of the tyre) and drive carefully but occasionally 'stress' the tyre with some harsh braking. Surviving the test will give you peace of mind.

More excellent advicse - NOT.

Testing with a known defect like this on a public highway even at legal speeds would be extreemly ill advised. If it did blow, cause an accident and the facts emerged the driver would face serious charges.

As SLO says, simply buy a mid range tyre, preferably a pair. I bought a set of Uniroyal Rain Experts last year and so far they have proven to be excellent. Testers critisised their soft sidewalls but at the speeds you drive at on the public highway they are fine, better than fine in truth since they give an excellent ride. They also track in a perfectly strait line, something the stiffer Yoko's that preceeded them never did.

Tyre advice - SLO76
I don’t agree with John’s thinking here at all. Why take a possible life ending risk for the sake of £60-£70? It may we’ll stand up for a while but it’s weakened and may cause a blowout at speed. I take a dim view of those who take risks with other people’s lives.
Tyre advice - Avant

Agree with Skidpan and SLO, and thank you both for the restraint in your comments which gives them extra value.

Readers of this thread, please note that John F's suggestion of over-inflating an already defective tyre makes a blowout more likely, and this is * potentially dangerous * . I leave the post in rather than deleting it, so that you can see what it is that we're commenting on.

Note also that Nobby, the original poster, talks about a cut in the sidewall which he isn't happy with and quite reasonably wants to replace the tyre. This thread is about what to replace it with.

Edited by Avant on 03/10/2018 at 00:50

Tyre advice - catsdad
Unless I've missed it nobody has suggested where to get tyres from? Whatever you decide its likely to be cheapest to buy online with fitting at one of their partners included.

When I've been searching around in the past I've never found any one supplier to be consistently cheapest as they have different and changeable offers. For what its worth my last two best buys were - very surprisingly - Halfords (booked online, don't just turn up) and Blackcircles.There are lots of alternatives of course.

You might be lucky and find a good deal at local independents but its not the case where I live.
Tyre advice - John F

Readers of this thread, please note that John F's suggestion of over-inflating an already defective tyre makes a blowout more likely......

Yet again, a misinterpretation. Please read my cautious suggestion carefully. I specifically did not suggest 'over-inflating' (which I understand to mean above the maximum allowed) a 'defective' tyre.

As a previous poster pointed out, it's just an advisory, the tyre is not considered to be dangerous and so is not sufficiently imperfect to be classed as 'defective' . Caution here is getting a bit OTT methinks. In any case, thanks to modern suspension geometry and tyre construction, a sudden deflation even at high speed rarely causes injury, let alone death.

Tyre advice - skidpan

In any case, thanks to modern suspension geometry and tyre construction, a sudden deflation even at high speed rarely causes injury, let alone death.

More excellent advice. I trust you will put your theories to the test and get back to us with a report certified by an independant authority.

Readers please note, JohnF is risking peoples lives with his often given ill advised and dangerous advice.

Tyre advice - Andrew-T

<< Readers please note, JohnF is risking peoples lives with his often given ill advised and dangerous advice. >>

Realistically, we are all risking people's lives (mostly our own) whenever we get in our cars and drive. Probabilities attach to anything we do, and I suppose JohnF's suggestion has a slightly higher risk than normal. Some people are more risk-averse (worried?) than others, and some hardly think about the risks. You may be trying to bait J-F, or the other way round, or both, but sometimes I think you try a bit too hard.

Tyre advice - skidpan

Whatever you decide its likely to be cheapest to buy online with fitting at one of their partners included

I have bought winter tyres fitted to new steel rims from MyTyres and they were ££££'s cheaper than buying from UK suppliers.

But

When i wanted 4 new tyres last year the prices using on line sites fully fitted were no lower than well known and respected local indepedents.

But I noted some issues buying like this:

The fitting partners for the on line sellers in our are mostly local scrap yards, I for one would not want such a place removing/fitting tyres to my expensive alloys.

If there is a problem with a tyre bought on line it would be the buyers responsibilty to get it removed and then send it back, both of which will cost money. What would the buyer do then with a tyre missing from the car, they would have to buy a replacement locally or leave the car on bricks. Ita ll too risky even if it saves a few pounds.

The tyres I bought were Uniroyals, from memory buying on line and using a propper tyre shop was just over £50 each, for the record a scrappy would have save me about £3 a tyre. My local indy quoted me £196 for 4 fully fitted inc disposal.

But when they came to fit them they discovered a problem. The wheels are racing alloys with the valves in a position that protects them from being damaged during any wheel to wheel contact, they are especially popular with oval racers. The valves need to be stubby ones but the valve seat in the alloy is thicker than normal and the valve needs a longer slim area to fit, these valves have been discontinued, the ones in the rims were fitted in 2008. They showed me that whilst an ordinary valve appears to fit OK once you move it about it will potentially fall into the wheel causing an instant loss of pressure. The only solution was bolt in alloy valves which their supplier had in stock and delivered within the hour. Obviously I had to pay a bit extra, cost me £2 a wheel.

I ask myself, how many tyre shops would be professional enough to recognise this issue and instead left me in a potentially dangerous car.

So buying locally actually saved me money and potentially saved my life, they are both a bargain.

Tyre advice - skidpan

You may be trying to bait J-F, or the other way round, or both, but sometimes I think you try a bit too hard.

I am not trying to bait JohnF, I am trying to stop readers who see his post thinking its good sensible advice.

But I do think that JohnF is trying bait myself and others who appreciate that his ideas are totally stupid into posting inflamatory posts.

Tyre advice - FP

"...I do think that JohnF is trying bait myself and others who appreciate that his ideas are totally stupid into posting inflamatory posts."

Herein lies the problem. Exaggeration (and misrepresentation/misquotation, as seems frequently to happen) don't do anyone any favours in what should be rational discussion.

Do you really mean JohnF's ideas are "totally stupid"? Because I don't. I may not agree with a lot of them, but I don't crudely bracket them all together.

"...trying bait myself and others... into posting inflamatory posts." As you obviously realise that you are prone to being provoked in this way, I suggest you keep a lid on things. You don't have to react.

What I have put above explains a lot of the ill-feeling that has recently been generated in several threads. A bit more clear-headedness and less knee-jerk reaction would help to make the forum a more pleasant place.

Tyre advice - skidpan

Do you really mean JohnF's ideas are "totally stupid"? Because I don't. I may not agree with a lot of them, but I don't crudely bracket them all together.

So you think its good advice to recomend that owners:

never to change their cam belt

change their oil 4 times over 28 years

continue to use 20 year old tyres

never change brake fluid

use brake pads down to the metal

change brake pads singularly i.e. not in sets of 4

test damaged tyres on a public highway by pumping to higher than normal pressures and driving in a manner that may or may not cause them to blow

state that a blowout is unlikely to cause death or injury

Probably missed some of his gems but I think its enough to prove he is in a club of one and probably only comes on here because no one else will allow him to post.

Tyre advice - FP

You can't stop yourself, can you?

You are distorting and misrepresenting again. However, I'm not going to prolong this discussion with a detailed deconstruction of what JohnF said (or didn't say). That's been done elsewhere.

"... probably only comes on here because no one else will allow him to post." And you have some evidence of that, presumably.

Really, this post in response to my criticism of your over-sensitivity and lack of calm reason is just another example of the problem.

I'm not going to say any more. It's up to Avant to deal with it.

Edited by FP on 03/10/2018 at 16:48

Tyre advice - Avant

Nobby has had the advice he asked for, and kindly came back to thank people for it.

That was all that was needed on this thread. Closed.