Tyres - do I have a problem?

[trevd01]

You heard it here first

I didn't know, of course, when I posted above, but logic finally prevailed. It was thinking about 2wds having different sizes specified that led me to the conclusion, now finally confirmed by DemonAV.

My original theory about the spacesaver now prevails (it hardly saves much space does it?). It is there so you can have a spare when your front and rear tyre sizes are different, and fitting a different tyre size on the same axle would be illegal in many countries. But a speed limited 'spacesaver' is allowed.
What do you think of that theory?

[bigdaddycain]

That sounds fair enough to me,legalities aside though,if i was running different sized tyres front and rear, i think i'd rather chance the odd sized tyre than a space saver! Surely the "wrong" sized tyre is safer as a means to get you home, than the spacesaver?

[scanner]

Just paint your spare (whatever size) orange and stick a 80kph sign on it and it becomes a space saver.

Can't find anywhere that specifies what size a space saver should be just that it has to have the warning sign on it.

[dandywarhol]

You heard it here first

I didn't know, of course, when I posted above, but logic finally prevailed. It was thinking about 2wds having different sizes specified that led me to the conclusion, now finally confirmed by DemonAV.

My original theory about the spacesaver now prevails (it hardly saves much space does it?). It is there so you can have a spare when your front and rear tyre sizes are different, and fitting a different tyre size on the same axle would be illegal in many countries. But a speed limited 'spacesaver' is allowed.
What do you think of that theory?

Yep, I'll go along with the experts but I still like my theory about the wind up but I agree that 1% is negligible and probably won't have much effect BUT I still thing that new rears and fronts down to 2mm making it 2.5% difference could affect the VC. It's interesting to see the Japs taking it that bit further and attach a thermocouple to it to actually find out what may happen They must've had a similar theory

Still, it's good to debate and rant on the keyboard when there's much more inportant things in life to get on with

[zigzag]

A question about Trevd01's doorplate, from his post on 29th Feb - has anyone ever translated what this says, the top two line are for front and back I guess but what are line three and four telling us? The two words in the left hand column are the same in all four lines.

[Muzorewa]

When we collected ours it had 195/70's all round

Fortunately the rears were new but the fronts well worn so I put the rears on the front and had new 215/65's put on the back.

So now we have 195/70R15 97T on the front, 215/65R15 100T on the rear. The rears are really truck tyres and make quite a lot more noise than the previous ones. But I think they're the right tyres for the job.

[WISHIHADABONGO]

God knows what Iam going to do with my alloy dilema, I have some 18"'s and to get the correct tyre with at least a 96 rating I have to go for a 235 45 18 cheapest I can see at £97 inc vat fitted, I could be a bit norti and go for a 95 load tyre at 225 45 18 at £65 inc vat and fitting.

I have looked at so many Bongos running as low as 91 Load Rating on their 18"'s

I had a chat to my MOT'er and he advises me that load rating is NOT part of the MOT, but I'm more concerned about tyre wear and side wall strength

95 is sooooooo close to the magic 96 number

So come on lets her your advice!!!! or has anyone spotted any cheaper tyres???

What tyre load have you got on your 18"'s????

[scanner]

It may not an actual reason for failure of the MOT, but the tester is "advised" to bring the matter to your attention.

But try asking your insurers for their view?

[WISHIHADABONGO]

But try asking your insurers for their view?

I do agree with that statement, but with so many Bongos out there running the wrong loadings.....

Still if I can find a 96 loaded tyre at a reasonable price I will be buying them the search goes on....

[daveblueozzie]

translated from the japanese site, good luck in understanding it thanks to trevdo1 for the site link.

What is the difference of the size of the tire in the back and forth?


As for Bongofrendi, the size of the tire before and after is different. Height is high from the beginning and because the tire is Hirahe easily, it is embarrassed for a moment that the tire cannot rotate. Information of the size etc. of the tire : to the following tables.



(table)Size etc. of tire of Frendi - The diameter is a calculation value.


Front wheel(diameter)
Rear wheel(diameter)
Ground clearance

2000 gasolines

2500 diesels
195/70-15

(654mm)
215/65-15

(660.5mm)
175mm

2500 gasolines
195/80-15

(693mm)
215/70-15

(682mm)
155mm




The engine is near and the back and forth weight distribution is near 5:5 because of the midship layout if it sees from respect of weight. Because the weight distribution becomes inclined to further it back as for the AFT car when a little becoming of the back heavily, and a lot of people and luggage are put, the width of the rear wheel might be wide and it be necessary.

Moreover, the purpose is the straight advancement stability improvement according to the catalog etc. of Mazda. If height is high, and ATF etc. are equipped from the beginning, it is necessary to secure stability so that the center of gravity position may go up, too. The danger such as turning sideways is thought by causing spin when the oversteering characteristic is strong. To bring close to the understeer characteristic therefore, the front wheel might have been thinned. Whether which is correct answer it for the chain installation on the improvement of other slice corners of the front wheel and the front wheel neither idea of securing the clearance nor is understood.

Does the size of the tire of 2500 gasoline car largeness earn the ground clearance (road clearance) or do probably because of?｡The ground clearance on the spec is a value that is smaller than 2000 gasolines and 2500 diesels. The ground clearance lowers more if the size of the tire is the same. Because it is a selfish imagination, the truth is not understood about this. Anyway, when the tire is chosen, it might be safe to defend the instruction size of the manufacturer.

For your information, because the manager is reserves, there are a tire and one wheel, and is installing it, the back and forth size is the same. In own judgment and the responsibility when changing from a specified size of the manufacturer.

[WISHIHADABONGO]

After reading that little lot, and that I dont have an AFT, I recon 95's would be fine on mine...

[cheffy34]

A that went completely over my head DBO

[daveblueozzie]

dont worry i understood every word. NOT

[zigzag]

Does all that mean that lines 1 and 2 on the door plate are for front and rear with a diesel engine and that lines 3 and 4 are front and rear petrol?