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Introduction Of A New 145/10 Tyre


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#46 unburntfuelinthemorning

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Posted 06 May 2020 - 02:20 PM

For optimum roadholding a 165 section tyre is arguably best, but for the pure handling and retro feel a 145 is great. A 145 makes a Mini feel the way the original classic Mini used to feel and handle.
With a 145 the steering geometry is 'as designed' and the tyre contract pressure onto the road is just right.
Remember, originally the Mini came with a 5.20 x 10 crossply. Fortunately radials soon replaced the crossplies, but my first 850 came with Dunlop C41 crossplies.

Is the difference between 145s on a 3.5" rim and 145s on a 4.5" rim very noticeable?



#47 Cooperman

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Posted 06 May 2020 - 07:47 PM

 

For optimum roadholding a 165 section tyre is arguably best, but for the pure handling and retro feel a 145 is great. A 145 makes a Mini feel the way the original classic Mini used to feel and handle.
With a 145 the steering geometry is 'as designed' and the tyre contract pressure onto the road is just right.
Remember, originally the Mini came with a 5.20 x 10 crossply. Fortunately radials soon replaced the crossplies, but my first 850 came with Dunlop C41 crossplies.

Is the difference between 145s on a 3.5" rim and 145s on a 4.5" rim very noticeable?

 

I doubt the difference would be very noticeable in normal driving.

My first Cooper which I bought in 1964 had 3.5" wheels and Dunlop SP41 tyres as standard handled well and the road-holding was as good as any other 1960's car on then current tyres. It was competitive on rallies of that era and sometimes I used Firestone 'Town & Country' tyres for gravel.

A few years ago I drove an MPI on 145 x 12 tyres in the wet and it did remind me of how well a Mini can handle on a narrower tyre.

It seems a modern fad to fit overly-wide tyres, but on a car which was not designed for them they can be a disadvantage and spoli the 'retro- feel of a classic car.



#48 HUBBA.HUBBA

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Posted 06 May 2020 - 08:15 PM

For a high powered mini. Would a 165 tyre on a 4.5 wheel be better suited than a 145 tyre?

#49 Minigman

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Posted 06 May 2020 - 08:22 PM

You’d certainly get more grip on the corners. In a straight line it’s a bit irrelevant.

#50 Cooperman

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Posted 06 May 2020 - 09:34 PM

You’d certainly get more grip on the corners. In a straight line it’s a bit irrelevant.

Only in the dry. In the wet I think a 145 might have the edge.

A lot depends on why you want to own and drive an old classic car.

Most classic car owners do so because they want to drive a 'retro' type car which drives the way driving used to be. 

I have a good friend who has a 1934 Rolls-Royce with a Hooper body. It sure drives like the old car it is, but it would be far from ideal to try to fit wider wheels and tyres as it would no longer be like a 1934 car. To me the Mini is a 'child of the '60's' and for maximum enjoyment it should drive as such. It is not and cannot be a modern car, because the design is now 62 years old.

Remember, the basic design never changed because it was simply so good to begin with. That's why it handles best on 145 tyres, with max dry grip coming from a 165.



#51 Minigman

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Posted 06 May 2020 - 11:35 PM


You’d certainly get more grip on the corners. In a straight line it’s a bit irrelevant.

Only in the dry. In the wet I think a 145 might have the edge.
A lot depends on why you want to own and drive an old classic car.
Most classic car owners do so because they want to drive a 'retro' type car which drives the way driving used to be.
I have a good friend who has a 1934 Rolls-Royce with a Hooper body. It sure drives like the old car it is, but it would be far from ideal to try to fit wider wheels and tyres as it would no longer be like a 1934 car. To me the Mini is a 'child of the '60's' and for maximum enjoyment it should drive as such. It is not and cannot be a modern car, because the design is now 62 years old.
Remember, the basic design never changed because it was simply so good to begin with. That's why it handles best on 145 tyres, with max dry grip coming from a 165.
100% agree.

My mk1 with its 41bhp is running 145 blockleys and my mk3 with 90bhp is running 165 A008s. I wouldn’t fancy my mk3 much on 145s.

Edited by Minigman, 06 May 2020 - 11:36 PM.


#52 unburntfuelinthemorning

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Posted 07 May 2020 - 05:00 AM

What characteristics do the 145 Blockleys have compared to other tyres the same size?



#53 HUBBA.HUBBA

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Posted 07 May 2020 - 08:56 AM

You’d certainly get more grip on the corners. In a straight line it’s a bit irrelevant.

Only in the dry. In the wet I think a 145 might have the edge.
A lot depends on why you want to own and drive an old classic car.
Most classic car owners do so because they want to drive a 'retro' type car which drives the way driving used to be.
I have a good friend who has a 1934 Rolls-Royce with a Hooper body. It sure drives like the old car it is, but it would be far from ideal to try to fit wider wheels and tyres as it would no longer be like a 1934 car. To me the Mini is a 'child of the '60's' and for maximum enjoyment it should drive as such. It is not and cannot be a modern car, because the design is now 62 years old.
Remember, the basic design never changed because it was simply so good to begin with. That's why it handles best on 145 tyres, with max dry grip coming from a 165.
100% agree.

My mk1 with its 41bhp is running 145 blockleys and my mk3 with 90bhp is running 165 A008s. I wouldn’t fancy my mk3 much on 145s.
so on a 120-130hp mini use 165's?

#54 Cooperman

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Posted 07 May 2020 - 10:42 AM

Remember in the '60's the rally cars had up to around 100bhp amd they usd to run on 145/80 x 10 Dunlop SP44 Weathermaster tyres. That is what we used for rallying in the Welsh lanes and they were fine.

Times & tyres have changed, but for our old cars there is nothing wrong with a 145 section tyre. Personally I run my 1964 'S' on 165 tyres on 4.5" Minilites or 5" BWA and when I could get them the Colway 'Nora' knobbly for gravel, although there doesn't seem to be a 165 knobbly tyre available in 10" now and only the 145 x 10 Hakka is available for gravel or snow/ice.

It is worth remembering that when the Escort Twin-Cam was introduced it came on 165 x 13 tyres, as did the Lotus-Cortina  & GT Cortina. Most people went to 175 x 13 tyres. Even our 'works' rally Datsun 240Z with 250 bhp had 175 tyres unless we were running on full racing tyres.

There is a tendancy to 'over-tyre' cars these days and although it can give better road-holding in the dry, it can ruin the handling and wet grip. Of course, tyre compound plays a big part in tyre technology and choice. 



#55 HUBBA.HUBBA

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Posted 07 May 2020 - 01:27 PM

Remember in the '60's the rally cars had up to around 100bhp amd they usd to run on 145/80 x 10 Dunlop SP44 Weathermaster tyres. That is what we used for rallying in the Welsh lanes and they were fine.
Times & tyres have changed, but for our old cars there is nothing wrong with a 145 section tyre. Personally I run my 1964 'S' on 165 tyres on 4.5" Minilites or 5" BWA and when I could get them the Colway 'Nora' knobbly for gravel, although there doesn't seem to be a 165 knobbly tyre available in 10" now and only the 145 x 10 Hakka is available for gravel or snow/ice.
It is worth remembering that when the Escort Twin-Cam was introduced it came on 165 x 13 tyres, as did the Lotus-Cortina  & GT Cortina. Most people went to 175 x 13 tyres. Even our 'works' rally Datsun 240Z with 250 bhp had 175 tyres unless we were running on full racing tyres.
There is a tendancy to 'over-tyre' cars these days and although it can give better road-holding in the dry, it can ruin the handling and wet grip. Of course, tyre compound plays a big part in tyre technology and choice.

So is that a yes or no?

#56 Cooperman

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Posted 07 May 2020 - 09:29 PM

 

Remember in the '60's the rally cars had up to around 100bhp amd they usd to run on 145/80 x 10 Dunlop SP44 Weathermaster tyres. That is what we used for rallying in the Welsh lanes and they were fine.
Times & tyres have changed, but for our old cars there is nothing wrong with a 145 section tyre. Personally I run my 1964 'S' on 165 tyres on 4.5" Minilites or 5" BWA and when I could get them the Colway 'Nora' knobbly for gravel, although there doesn't seem to be a 165 knobbly tyre available in 10" now and only the 145 x 10 Hakka is available for gravel or snow/ice.
It is worth remembering that when the Escort Twin-Cam was introduced it came on 165 x 13 tyres, as did the Lotus-Cortina  & GT Cortina. Most people went to 175 x 13 tyres. Even our 'works' rally Datsun 240Z with 250 bhp had 175 tyres unless we were running on full racing tyres.
There is a tendancy to 'over-tyre' cars these days and although it can give better road-holding in the dry, it can ruin the handling and wet grip. Of course, tyre compound plays a big part in tyre technology and choice.

So is that a yes or no?

 

It's your own choice. However, the choice of compound probably means a 165 will be the obvious choice for you.






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