Tire experts opinion asked

Azur · 26th August 2021, 15:11

Hello,

all 4 of my Avon tyres have at least 6 to 8 mm of tread left, but the inner tread has longitudinal cracks all around the tyre.
What is your opinion? Should the tyres be replaced or not? Regardless of the age of the tyre, there are no other defects but this is what I would like to know.

Thanks in advance.

Kind regards,

Emiel

Jamiewelch · 26th August 2021, 15:20

Quote:

Originally Posted by Azur

Hello,

all 4 of my Avon tyres have at least 6 to 8 mm of tread left, but the inner tread has longitudinal cracks all around the tyre.
What is your opinion? Should the tyres be replaced or not? Regardless of the age of the tyre, there are no other defects but this is what I would like to know.

Thanks in advance.

Kind regards,

Emiel

Replace them. Tyres and brakes are an area that you shouldn't risk it.

slovcan · 26th August 2021, 15:43

Over here those tires would not pass the bi-annual safety inspection (aka MOT). I had Michelins do this. It can happen in as little as 4 years. I was told it is due to EU mandated change in manufacturing processes and/or materials for ecological reasons. I have had much older Japanese and Korean tires that didn't do that.

euro44 · 26th August 2021, 16:17

totally agree, they are a serious risk to your safety, dont risk it.

Azur · 26th August 2021, 17:11

Thanks for the advice. I already took the wheels of the car to let them changed. DOT 2016. Weird that all of them have no wear at all, only that part, all four of them. Seems maybe a production failure, week point? Not a huge ammount of sunshine on it, it is on the inner side of the wheels.

Anyway, safety first.

Tnx, Emiel

COLVERT · 26th August 2021, 17:34

To be on the safe side they do need to be changed.---They are date stamped.---Make sure your new tyres actually are new.---Those cracked tyres might have been old at the time they were fitted.---

Jamiewelch · 27th August 2021, 07:50

Quote:

Originally Posted by Azur

Thanks for the advice. I already took the wheels of the car to let them changed. DOT 2016. Weird that all of them have no wear at all, only that part, all four of them. Seems maybe a production failure, week point? Not a huge ammount of sunshine on it, it is on the inner side of the wheels.

Anyway, safety first.

Tnx, Emiel

I wouldn't have thought 5 years of life was too bad for a tyre. If you do the average 10k a year they should have done around 50k which would be very good going for a soft compound grippy tyre. If you've still got virtually all the tread on them then they have probably cracked due to lack of use. Same with suspension rubbers and components, if they aren't used they dry up and then crack when flexed.

trikey · 27th August 2021, 07:38

A common fault with Avon’s apparently!!

torque2me · 31st August 2021, 19:24

Quote:

Originally Posted by trikey

A common fault with Avon’s apparently!!

Then I've been lucky as I started to once again to use Avon's in 2001. Not had that sort of deteriation in the many, many sets I've had. As a previous poster has mentioned, compounds change all the time and adherence to regulations have to be made.
it could be any make having this sort of issue if made in the EU

Kev

Mike Trident · 31st August 2021, 19:42

I have avons on mine all round. The rears look like that, and they are only about 3 years old.

The mot guy mentioned I should keep an eye on the rear tyres, didn't understand what he meant until I had a good look.

26th August 2021, 15:11	#1
Azur Loves to post Rover 75 Saloon. 2,5 V6 Conn.SE auto, Moonstone green, White gold, Dorchester red Join Date: Mar 2018 Location: Hollandscheveld Posts: 479 Thanks: 684 Thanked 280 Times in 117 Posts	Tire experts opinion asked Hello, all 4 of my Avon tyres have at least 6 to 8 mm of tread left, but the inner tread has longitudinal cracks all around the tyre. What is your opinion? Should the tyres be replaced or not? Regardless of the age of the tyre, there are no other defects but this is what I would like to know. Thanks in advance. Kind regards, Emiel __________________

26th August 2021, 15:43	#3
slovcan Gets stuck in 75 Tourer CDT MK2 manual in Glorious Grey Join Date: Jan 2018 Location: Slovakia Posts: 987 Thanks: 926 Thanked 346 Times in 252 Posts	Over here those tires would not pass the bi-annual safety inspection (aka MOT). I had Michelins do this. It can happen in as little as 4 years. I was told it is due to EU mandated change in manufacturing processes and/or materials for ecological reasons. I have had much older Japanese and Korean tires that didn't do that. __________________ Southern Slovakia Anything can happen in Formula 1 and usually does - Murray Walker 1999 Triumph Trophy 900, Saddlesore 1600, Iron Butt Riders Association #63720 2005 Rover 75 CDT Tourer MK2

26th August 2021, 17:11	#5
Azur Loves to post Rover 75 Saloon. 2,5 V6 Conn.SE auto, Moonstone green, White gold, Dorchester red Join Date: Mar 2018 Location: Hollandscheveld Posts: 479 Thanks: 684 Thanked 280 Times in 117 Posts	Thanks for the advice. I already took the wheels of the car to let them changed. DOT 2016. Weird that all of them have no wear at all, only that part, all four of them. Seems maybe a production failure, week point? Not a huge ammount of sunshine on it, it is on the inner side of the wheels. Anyway, safety first. Tnx, Emiel __________________

27th August 2021, 07:38	#8
trikey Premium Trader Rover 75 Join Date: Nov 2010 Location: Devon Posts: 33,772 Thanks: 8,837 Thanked 14,831 Times in 8,030 Posts	A common fault with Avon’s apparently!! __________________ Lest we forget..

31st August 2021, 19:42	#10
Mike Trident Posted a thing or two Rover 75 CDTi Saloon & Citroen C1 Join Date: Jun 2016 Location: Oakenshaw, Near Bradford Posts: 1,622 Thanks: 385 Thanked 552 Times in 328 Posts	I have avons on mine all round. The rears look like that, and they are only about 3 years old. The mot guy mentioned I should keep an eye on the rear tyres, didn't understand what he meant until I had a good look. __________________ Rover 75 2.0 CDTi (131Ps) Conn SE Saloon. (Manual) 160 Remap, cruise control, electric window blind, temp gauge, Real walnut / ZT interior, FBH with GSM control. BORN Tuesday, 5th October 2004 @ 12:35:52 This vehicle was the 104,679th 75 to run off the production line, out of 112,381 This vehicle was the 3,318th 75 CDT Connoisseur SE (135) to be made out of 4,744 This vehicle was the 12,440th 75 in Starlight Silver (code: MBB) to be made out of 14,280 Starlight Silver 75s

26th August 2021, 16:17	#4
euro44 Avid contributor mg zt-t 226th made from total of 396 Join Date: Nov 2019 Location: chelmsford Posts: 155 Thanks: 175 Thanked 55 Times in 37 Posts	totally agree, they are a serious risk to your safety, dont risk it.

26th August 2021, 17:34	#6
COLVERT This is my second home R75 Saloon. Join Date: Feb 2009 Location: France/or Devon. Posts: 14,003 Thanks: 3,851 Thanked 2,167 Times in 1,816 Posts	To be on the safe side they do need to be changed.---They are date stamped.---Make sure your new tyres actually are new.---Those cracked tyres might have been old at the time they were fitted.---