Hopefully swapping to standard tyres
Discussion
JNW1 said:
Sorry chaps but my point is that I only kept going with the run-flat by stopping at 3 different filling stations within 50 miles to reinflate with air and I thought the point of these things was you're meant to be able to keep going for that sort of distance without needing to do that?
But you didn't need to keep topping them up. You can "run on flat" for 50 miles or so. You were treating them like a normal tyre.
craigsup said:
Cheers for showing those results - yeah i'm pretty set on the Conti's. Just searching around for the best price at the moment as the 255's are over 30% more expensive than the 225's.
The reason I'm swapping away from run-flats is that the ride is terrible. The steering wheel feels numb and when going over holes/bumps, they crash around. Never had runflats before - the idea sounds good but in the practise they just don't live up to what I had hoped. Plus, If I do get a puncture I can simply phone the AA and get them to recover me to a garage where I can order a new tyre. I don't really drive enough miles to warrant the run flats as I don't use my car every day so waiting a few days for a tyre to arrive won't be a biggie, plus most punctures will be repairable (cheaply).
Fully agree with what you say on r/f versus normal tyres, r/f are only a big positive on a full on blow out situation IMHO.The reason I'm swapping away from run-flats is that the ride is terrible. The steering wheel feels numb and when going over holes/bumps, they crash around. Never had runflats before - the idea sounds good but in the practise they just don't live up to what I had hoped. Plus, If I do get a puncture I can simply phone the AA and get them to recover me to a garage where I can order a new tyre. I don't really drive enough miles to warrant the run flats as I don't use my car every day so waiting a few days for a tyre to arrive won't be a biggie, plus most punctures will be repairable (cheaply).
Edited by craigsup on Tuesday 26th January 07:46
If you get a puncture on a r/f you still need to stop before you damage the tyre.
Normal tyres DO offer more grip/feedback/handling control due to the more deformable side wall allowing a (generally) better contact patch with the road.
RicksAlfas said:
But you didn't need to keep topping them up. You can "run on flat" for 50 miles or so.
You were treating them like a normal tyre.
The second time I stopped for air the tyre was almost literally flat and the car wasn't responding properly to the steering; it was less than 50 miles home but frankly there's no way I'd have driven the car that distance in that state (I'd have felt like a danger to myself and everyone else on the road). Anyway, a full set of new boots will be fitted tomorrow morning; just over 10 miles from home to the place doing the work so I'll put plenty of air in the offending tyre before I set off - and the foot pump in the boot - and hope it doesn't shred before I get there!You were treating them like a normal tyre.
Just another quick question.
The current setup on the car is 225/40/r18 at the front and 255/35/r18 at the rear.
Would having a square setup (225/40 front and rear) affect the car?
I don't exactly push my car to the limit so I can't see there being an issue?
The current setup on the car is 225/40/r18 at the front and 255/35/r18 at the rear.
Would having a square setup (225/40 front and rear) affect the car?
I don't exactly push my car to the limit so I can't see there being an issue?
Edited by craigsup on Tuesday 26th January 13:08
craigsup said:
Just another quick question.
The current setup on the car is 225/40/r18 at the front and 255/45/r18 at the rear.
Would having a square setup (225/40 front and rear) affect the car?
I don't exactly push my car to the limit so I can't see there being an issue?
225 tyres would be quite stretched on the wider rear rims....The current setup on the car is 225/40/r18 at the front and 255/45/r18 at the rear.
Would having a square setup (225/40 front and rear) affect the car?
I don't exactly push my car to the limit so I can't see there being an issue?
A couple of years ago before I knew better I had an e39 530 Sport, which I fitted winter tyres to.
The normal rears were 255s & I went down to 235s for winter tyres, the difference in dry weather grip was MASSIVE!!!!!!!
And I do mean MASSIVE! even without trying it was virtually impossible to pull away without the t/c going bananas.
Needless to say, they didn't last the winter.
The normal rears were 255s & I went down to 235s for winter tyres, the difference in dry weather grip was MASSIVE!!!!!!!
And I do mean MASSIVE! even without trying it was virtually impossible to pull away without the t/c going bananas.
Needless to say, they didn't last the winter.
Apologies I had a mistype in my post - it's 225/40/r18 front and 255/35/r18 rear.
Does that change the circumstances in terms of putting 225/40/r18 all round?
Edit: Thinking about it, I guess it would still be a stretch. So I guess rears have to be 255/35
Does that change the circumstances in terms of putting 225/40/r18 all round?
Edit: Thinking about it, I guess it would still be a stretch. So I guess rears have to be 255/35
Edited by craigsup on Tuesday 26th January 13:20
Edited by craigsup on Tuesday 26th January 13:20
craigsup said:
Apologies I had a mistype in my post - it's 225/40/r18 front and 255/35/r18 rear.
Does that change the circumstances in terms of putting 225/40/r18 all round?
Edit: Thinking about it, I guess it would still be a stretch. So I guess rears have to be 255/35
Your correction doesn't change my point, the difference in wheel size (8 fr, 8.5 rear) dictates the tyre size differences. Does that change the circumstances in terms of putting 225/40/r18 all round?
Edit: Thinking about it, I guess it would still be a stretch. So I guess rears have to be 255/35
Edited by craigsup on Tuesday 26th January 13:20
Edited by craigsup on Tuesday 26th January 13:20
I had staggered 18s on my E46 and did wonder about square, as the fronts were cheaper!
It's probably over complicated but could you buy 2 used 18s rims to match the fronts, then have a square set up and then sell the larger rears ?
craigsup said:
Apologies I had a mistype in my post - it's 225/40/r18 front and 255/35/r18 rear.
Does that change the circumstances in terms of putting 225/40/r18 all round?
As others have said, I'd be inclined to stick with 255 on the rear as the rim width on the rear wheels will almost certainly be different from the fronts; if the rears are 8.5" wide then 225 is probably about as narrow as you dare go (see link below). If your main concern is ride quality I actually think you'll be fine with conventional tyres on 18" wheels but nothing to stop you fitting a slightly higher profile than standard (so perhaps go 255/40 on the rear?). Does that change the circumstances in terms of putting 225/40/r18 all round?
http://www.brick-yard.co.uk/forum/tyre-size-for-ri...
E-bmw said:
A couple of years ago before I knew better I had an e39 530 Sport, which I fitted winter tyres to.
The normal rears were 255s & I went down to 235s for winter tyres, the difference in dry weather grip was MASSIVE!!!!!!!
And I do mean MASSIVE! even without trying it was virtually impossible to pull away without the t/c going bananas.
Needless to say, they didn't last the winter.
That's why my winters are in the same size (225 and 255) as my summers The normal rears were 255s & I went down to 235s for winter tyres, the difference in dry weather grip was MASSIVE!!!!!!!
And I do mean MASSIVE! even without trying it was virtually impossible to pull away without the t/c going bananas.
Needless to say, they didn't last the winter.
Unless you live in a region that gets A LOT of snow, you really don't need to fit narrower winter tyres in the UK.
Smuler said:
Your correction doesn't change my point, the difference in wheel size (8 fr, 8.5 rear) dictates the tyre size differences.
I had staggered 18s on my E46 and did wonder about square, as the fronts were cheaper!
It's probably over complicated but could you buy 2 used 18s rims to match the fronts, then have a square set up and then sell the larger rears ?
Ah fair enough, I have a complete gap in my knowledge when it comes to tyres. So now I understand the width 225/255 is determined by the alloy width and shouldn't be changed. the 35/40/45 side is the height of the tyre wall.I had staggered 18s on my E46 and did wonder about square, as the fronts were cheaper!
It's probably over complicated but could you buy 2 used 18s rims to match the fronts, then have a square set up and then sell the larger rears ?
I think I'll stick to the current size, and just find the right priced and quality of tyre. Looking at the Conti Sport Contact 5 and the Goodyear Eagle F1 Asymmetric 2 (or 3 but that new so not many reviews).
The Goodyear is slightly cheaper and has similar test results to the Conti...Decisions decisions...
JNW1 said:
As others have said, I'd be inclined to stick with 255 on the rear as the rim width on the rear wheels will almost certainly be different from the fronts; if the rears are 8.5" wide then 225 is probably about as narrow as you dare go (see link below). If your main concern is ride quality I actually think you'll be fine with conventional tyres on 18" wheels but nothing to stop you fitting a slightly higher profile than standard (so perhaps go 255/40 on the rear?).
http://www.brick-yard.co.uk/forum/tyre-size-for-ri...
Cheers http://www.brick-yard.co.uk/forum/tyre-size-for-ri...
What would the taller profile offer? Looking at the sizing of tyres, the higher profile (40 from a 35) doesn't alter the price much so no real difference unless there is a performance/ride quality increase?craigsup said:
JNW1 said:
As others have said, I'd be inclined to stick with 255 on the rear as the rim width on the rear wheels will almost certainly be different from the fronts; if the rears are 8.5" wide then 225 is probably about as narrow as you dare go (see link below). If your main concern is ride quality I actually think you'll be fine with conventional tyres on 18" wheels but nothing to stop you fitting a slightly higher profile than standard (so perhaps go 255/40 on the rear?).
http://www.brick-yard.co.uk/forum/tyre-size-for-ri...
Cheers http://www.brick-yard.co.uk/forum/tyre-size-for-ri...
What would the taller profile offer? Looking at the sizing of tyres, the higher profile (40 from a 35) doesn't alter the price much so no real difference unless there is a performance/ride quality increase?On that subject I've thought quite hard about Contact Sport 5's in the past but what's put me off has been the numerous reports of them not wearing very well. If you want ultimate performance from the sounds of it Pilot Super Sports take a lot of beating although I've no experience of them myself; however, they're quite a bit more expensive than the Conti's or the AS2's and I'm about to switch my F31 335d to the Goodyears. Had them on an E91 335d and an E92 335i and they're very good tyres IMO.
JNW1 said:
A higher profile means a slightly bigger (taller) sidewall and, all other things being equal, a more compliant ride; the lower the profile the less sidewall you've got to absorb road imperfections and hence ultra low profile tyres can tend to result in compromised ride quality. Having said that, I still think you'd be fine sticking to the standard sizes on 18" wheels if you fit a decent conventional tyre.
On that subject I've thought quite hard about Contact Sport 5's in the past but what's put me off has been the numerous reports of them not wearing very well. If you want ultimate performance from the sounds of it Pilot Super Sports take a lot of beating although I've no experience of them myself; however, they're quite a bit more expensive than the Conti's or the AS2's and I'm about to switch my F31 335d to the Goodyears. Had them on an E91 335d and an E92 335i and they're very good tyres IMO.
Brilliant, thank you for your help/advise. Yeah the wear reviews on the CCS5 seem to indicate they don't last very long. I think I'm going to go for Goodyear AS2's. On both http://www.tyrereviews.co.uk/Tyre-Size/18-Inch-Tyr... and http://www.tyrereviews.co.uk/Tyre-Size/18-Inch-Tyr... the AS2's are very near the top (if you ignore the tyres which haven't had many reviews / miles done in them). And I'm currently looking at around £370 for the 4 tyres which doesn't sound too bad.On that subject I've thought quite hard about Contact Sport 5's in the past but what's put me off has been the numerous reports of them not wearing very well. If you want ultimate performance from the sounds of it Pilot Super Sports take a lot of beating although I've no experience of them myself; however, they're quite a bit more expensive than the Conti's or the AS2's and I'm about to switch my F31 335d to the Goodyears. Had them on an E91 335d and an E92 335i and they're very good tyres IMO.
Going to spend the next couple of days shopping around to see if any discounts / bargains appear!
craigsup said:
Brilliant, thank you for your help/advise. Yeah the wear reviews on the CCS5 seem to indicate they don't last very long. I think I'm going to go for Goodyear AS2's. On both http://www.tyrereviews.co.uk/Tyre-Size/18-Inch-Tyr... and http://www.tyrereviews.co.uk/Tyre-Size/18-Inch-Tyr... the AS2's are very near the top (if you ignore the tyres which haven't had many reviews / miles done in them). And I'm currently looking at around £370 for the 4 tyres which doesn't sound too bad.
Going to spend the next couple of days shopping around to see if any discounts / bargains appear!
The Conti's have probably finished higher in more professional reviews than the Goodyears but the people doing those reviews are testing new tyres over a relatively low mileage. That certainly doesn't make their findings irrelevant or invalid but for normal users how long the tyre will last and reproduce that performance is also an important factor and the conclusion I reached was that the Goodyears seemed to have the edge in that respect. Michelins also last reasonably well in my experience but only the Pilot Super Sport appears to better the AS2's and they cost a fair bit more. Going to spend the next couple of days shopping around to see if any discounts / bargains appear!
On the subject of price £370 for 4 AS2's on 18" wheels sounds very competitive so who's that with? Assume it doesn't include fitting/balancing but even including those things you're looking at less £450 which is a good deal!
JNW1 said:
The Conti's have probably finished higher in more professional reviews than the Goodyears but the people doing those reviews are testing new tyres over a relatively low mileage. That certainly doesn't make their findings irrelevant or invalid but for normal users how long the tyre will last and reproduce that performance is also an important factor and the conclusion I reached was that the Goodyears seemed to have the edge in that respect. Michelins also last reasonably well in my experience but only the Pilot Super Sport appears to better the AS2's and they cost a fair bit more.
On the subject of price £370 for 4 AS2's on 18" wheels sounds very competitive so who's that with? Assume it doesn't include fitting/balancing but even including those things you're looking at less £450 which is a good deal!
That's true - and while optimum performance is great, if that tyre wear is significantly higher I'd rather take the slightly less optimum and have the tyre last a lot longer. AS2's seem like the best compromise for me On the subject of price £370 for 4 AS2's on 18" wheels sounds very competitive so who's that with? Assume it doesn't include fitting/balancing but even including those things you're looking at less £450 which is a good deal!
www.tyres-outlet.co.uk have 2x 255/35/18 and 2x 225/40/18 inc delivery for £383. It doesn't include fitting etc just delivered to your house.
craigsup said:
www.tyres-outlet.co.uk have 2x 255/35/18 and 2x 225/40/18 inc delivery for £383. It doesn't include fitting etc just delivered to your house.
Good price, need to make a note of them for future reference! On a like for like basis I'm paying about £20 more for my set of AS2's but I need the car for a longish trip tomorrow afternoon and hence require the tyres fitting tomorrow given one of the existing run-flats has a puncture. Looks like these people are talking about 2 working days minimum for delivery which would be fine in most circumstances but is no good to me on this occasion!
t load of rain!craigsup said:
AS2's seem like the best compromise for me
Just by way of an update, a set of AS2's went on my F31 yesterday and I've since done a round trip of just under 400 miles (mainly motorway and dual carriageway running). Although the ride wasn't too bad on the Bridgestone run-flats it's definitely better on the Goodyears but the most apparent difference on the drive I did yesterday and today is how much less road noise there is with the AS2's; perhaps other makes of run-flat aren't as bad as the Bridgestones but the AS2's make the car noticeably more refined on a long run. Not had a chance to give it a run on any twisty stuff as yet but already confident the Goodyears have made a favourable difference to the way the car drives!JNW1 said:
Just by way of an update, a set of AS2's went on my F31 yesterday and I've since done a round trip of just under 400 miles (mainly motorway and dual carriageway running). Although the ride wasn't too bad on the Bridgestone run-flats it's definitely better on the Goodyears but the most apparent difference on the drive I did yesterday and today is how much less road noise there is with the AS2's; perhaps other makes of run-flat aren't as bad as the Bridgestones but the AS2's make the car noticeably more refined on a long run. Not had a chance to give it a run on any twisty stuff as yet but already confident the Goodyears have made a favourable difference to the way the car drives!
That's good I'm looking forward to getting the AS2's - glad you've noticed an improvement over ride quality as mine is very harsh at the moment.
When I picked up my summer wheels out of storage the other day, I noticed that either the passenger side or the drivers side (can't remember which) tyres have worn unevenly, so much so that I don't think they'd pass an MOT. Booked my car in to AutoDynamics in Sheffield to get it put on their Hunter alignment thing and he's sorting out the tyres for me. Seems like a decent chap there.
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