Tyres, yes that old potato

[kwnelson]

Bought a pair of 16" Toyo T1R's to replace the rear well worn but legal Bridgestone's and went for a ride up Swaledale as anyone would. fronts are Toyo's, recent but old stile tread, rears new stile.   Seemed "overly" responsive, put that down not being eased in.   Had reason to go to the big city, Darlington via A1M/A66 later that day, It was like driving a supermarket trolley.  Took it back to tyre place and he checked pressure 32psi, spot on. only done a few miles on B roads since Friday  What is the problem

[AdamR28]

Do you mean you have used T1R up front and new TR1 at the rear?

[1979scotte]

Do you mean you have used T1R up front and new TR1 at the rear?

I would imagine that's exactly what he is saying.

I've got AD08R on the front and AR08RS on the rear and it doesn't feel as confidence inspiring as it should IMHO.

[jvanzyl]

you're one of the first people I know of to try the new style Toyos... it's very possible that there is some trial and error in getting the pressure right.. maybe drop it down to 30 psi and see what it feels like? They're supposed to have stiffer side walls - so it's maybe possible they don't need to be as higher pressure as the old one's needed to be..

[Joesson]

As @kwnelson said "maybe they need easing in".
There are "stiff" walled tyres still with mould release agent and nibs etc on the rear and "run in" soft walled on the front , that makes them " different tyres until "eased in".
Although, I don' t know what Toyo customer relations are like. Here we have a loyal brand customer, old style front, new improved rear, and he is at present unsure. He is a member of a respected motoring organisation whose members are poised to decide what their next tyres will be etc.
Worth an email for sure.

[Carolyn]

I do think one has to take tyre pressure standards as a guide.  With the Nankangs I have on the front, I found too much bump-steer at 26 psi and it is much much better at 28.

I'd play with 2 psi less and 2 psi more to see what gives.

[1979scotte]

Takes a while to bed them in agree with @Joesson.

Dont agree with @jvanzyl i have run ad08r with extremely stiff sidewall at stock pressures with no issues.
I wouldn't be surprised if the toyo are still soft in that department and need a touch more.

@kwnelson did you check fronts were 26 at the same time?
When was the last time the car had an alignment i always tried to have mine done once a year not that it always worked out that way.

[Gaz mr-s]

@kwnelson  - I've never used the Toyo, but often heard of people increasing the front pressure of TR1's because of the soft sidewalls.

That doesn't explain why your old (& presumably age-hardened Bridgestones) didn't have the same effect though.

[kwnelson]

Thanks for all the excellent replies. I think that I will "SUCK IT AND SEE" how they behave after settling in, before I start medaling with pressures, bearing in mind that before changing tyres it was like running on rails.  Must have known there was a problem on the horizon, bought a digital pressure gauge about a couple of months ago!

[Zxrob]

I run the new TR1 on my FL and having played about with the pressures a bit I found the following suits me/the car and driving style (spirited road)

Fronts 195/55/15, 25 to 26 PSI cold
Rears  225/45/16, 29 to 30 PSI cold

Rob

[jvanzyl]

I run the new TR1 on my FL and having played about with the pressures a bit I found the following suits me/the car and driving style (spirited road)

Fronts 195/55/15, 25 to 26 PSI cold
Rears  225/45/16, 29 to 30 PSI cold

Rob

Ha! in your face! @1979scotte    

but in all seriousness - how do you find the tyres? any good or generally ok and value for money?

[1979scotte]

I run the new TR1 on my FL and having played about with the pressures a bit I found the following suits me/the car and driving style (spirited road)

Fronts 195/55/15, 25 to 26 PSI cold
Rears  225/45/16, 29 to 30 PSI cold

Rob

Ha! in your face! @1979scotte    

but in all seriousness - how do you find the tyres? any good or generally ok and value for money?

Not in my face at all John cos Rob hasn't got stock sizes 😛😜🤪😝

[Joesson]

Thanks for all the excellent replies. I think that I will "SUCK IT AND SEE" how they behave after settling in, before I start medaling with pressures, bearing in mind that before changing tyres it was like running on rails.  Must have known there was a problem on the horizon, bought a digital pressure gauge about a couple of months ago!

I wouldn't be without my tyre inflator, plugs into the cigarette lighter/ power socket, complete with digital pressure gauge. Mine is an old Michelin (not unlike #7 in the link) that was a hand me down from my eldest brother.
https://www.thesun.co.uk/sun-selects/8700229/best-tyre-inflators/

[Zxrob]

I run the new TR1 on my FL and having played about with the pressures a bit I found the following suits me/the car and driving style (spirited road)

Fronts 195/55/15, 25 to 26 PSI cold
Rears  225/45/16, 29 to 30 PSI cold

Rob

Ha! in your face! @1979scotte    

but in all seriousness - how do you find the tyres? any good or generally ok and value for money?

To be honest, haven't tried the more expensive makes that some folk use so cant compare, however, for the price I am more than pleased with them, they grip well when warmed up and haven't given me any issues yet and I do like to play a bit

Rob

[Zxrob]

A few things I will point out and down to experience, I dont push in my cars until I have a few miles on them and get some heat in the tyres.

Tyre pressures will be discussed for ever and a day, thats how it is, they are an important piece of the jigsaw puzzle, but there are other governing factors when we are talking about handling

On the same subject but slightly different, I run really sticky tyres on track with my bikes, same compound as the guys/girls do in British Superbikes, now, manufacturer's recommended HOT pressures are 24-27 PSI, now I find on MY BIKE, WITH MY SUSSPENSION SET UP that I need to run 23 PSI or I get tyre tare

What I'm saying is, tyres have an operating range, work on manufactures recommended pressures as guidance only

Rob