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Dec 10, 2007 17:21:30 GMT
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Do tyres harden with age ?
My suspicion is that they do - maybe to do with constant heating & cooling - not sure tho.
I know my bike tyres crack up when left in the sun all year. but not the case with car tyres.
could be good tho - harden & therfore give longer like.
Although loose grip as well !!!!!!
I fitted a set of tires that had not been used for about 6 years - they seem a tad hard & a little skittish in the wet.
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71 Alfa GT 1300 Junior
89 Alfa 75 3.0 V6 Veloce
89 Alfa 75 3.0 V6 America
2015 C220 estate Daily shunter
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Dec 10, 2007 17:24:11 GMT
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UV light causes them to harden, so keep them out of the sun!
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1997 TVR Chimaera
2009 Westfield Megabusa
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slater
Club Retro Rides Member
Posts: 6,390
Club RR Member Number: 78
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Do tyres harden with age ?slater
@slater
Club Retro Rides Member 78
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Dec 10, 2007 17:29:41 GMT
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yeh they do, my mini tyres which are probably of 70s vintage are rock solid  |
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Dec 10, 2007 17:37:28 GMT
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they harden and crack even if not in sunlight (in this country lol)
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2001 HONDA CT110 (NOT RCV)
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Dec 10, 2007 17:40:48 GMT
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Definitely, I had a set of 7yr old tyres on our Beetle when we bought it, stored in a garage, tyres rotated regularly, we fitted new ones all round and the car was transformed ;D
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Dec 10, 2007 19:10:06 GMT
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UV is certainly one agent of destruction, though the carbon black is used to combat that.
Another enemy of rubber is ozone from electric motors. Bag your tires when not in use and store them away from furnace handlers and laundry driers!
Norm
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Last Edit: Dec 10, 2007 19:11:09 GMT by Team Blitz
 Team Blitz Ford Capri parts worldwide: Restoration, Road, or Race. Used, Repro, and NOS, ranging from scabby to perfect. Itching your Capri jones since 1979! Buy, sell, trade. www.teamblitz.com blitz@teamblitz.com |
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dugong
Posted a lot
One Of Us Will Live To Rue The Day We Met Each Other (Wire : 2008)
Posts: 3,292
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Dec 10, 2007 19:11:25 GMT
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Yep, they definitely do. Ask reanimation what the front tyres on my Volvo are like  |
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Dec 10, 2007 19:23:13 GMT
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You can buy some stuff that you paint on them and it softens them up again. my mate used to use it on his slicks after they'd been in the garage all winter.
I cant remember what its called but demon tweeks sell it.
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Dec 10, 2007 19:40:27 GMT
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you are supposed to replace rubber every 7 years regardless of wear as the rubber stiffens and weakens and cracks up.
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1937 Austin Street Rod - 1941 Wolseley Not Rod - 1956 Humber Hawk - 1957 Daimler Conquest - 1966 Buick LeSabre - 1968 Plymouth Sport Fury - 1968 Ford Galaxie - 1969 Ford Country Squire - 1969 Mercury Marquis - 1970 Morris Minor - 1970 Buick Skylark - 1970 Ford Galaxie - 1971 Ford Galaxie - 1976 Continental Mark IV - 1976 Ford Capri - 1976 Rover V8 - 1994 Ford Fiesta
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perry
Part of things
Posts: 290 
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Dec 10, 2007 20:09:41 GMT
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grip tyre softener
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Dec 10, 2007 20:31:26 GMT
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sod tyre softener. Once a tyre starts to perish I'd be scared of it disintigrating. The skyline ones are on the way out, cracks in the tread but nothing in the walls yet. Good job i'm getting a new set of wheels and tyres soon!
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Snoozin
Posted a lot
Toyophile
Posts: 1,557
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Dec 10, 2007 20:51:27 GMT
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Since you've got a Skyline + tyres you no longer care for... there's only ONE possible way to dispose of said tyres I believe.  |
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spacekadett
Part of things
F*cking take that Hans Brrix!!
Posts: 818
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Dec 10, 2007 21:36:46 GMT
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Oh yes and if your really lucky the carcass can go as well, giving you a lovely square tyre!  Old Pirellis used to be favourite, especially the rear on FWD stuff. distort long before they wear out. Got some really nice Colway remoulds that were on the Opel when I got it. I don't think the tread dropped all the years I used them  |
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Mechanic's rule #1... If the car works, anything left on the floor after you finished wasn't needed in the first place |
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Dec 10, 2007 21:54:39 GMT
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All four tyres on our Mini started bulging and cracking like you wouldn't believe. Replaced the lot. Not a lot of expense for peace of mind.
Tyre aging is an oft-forgotten issue. It isn't just a case of tread depth and pressure.
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1986 Citroen 2CV Dolly Other things. Check out my Blog for the latest! www.hubnut.org |
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Dec 10, 2007 22:09:04 GMT
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Didnt some old boy get killed in his MGB when he took it down the motorway and a "new old stock" rear tyre blew out? I wasnt too bothered about cracked tyre walls before but I am now!
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1987 Maestro 1.6 HL perkins diesel conversion 1986 Audi 100 Avant 1800cc on LPG 1979 Allegro Series 2 special 4 door 1500cc with vynil roof. IN BITS. HERITAGE ISSUES.  |
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Dec 10, 2007 22:20:48 GMT
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Yup, the tyres turned out to be over 20 years old! Makes me sick to think of myself doing 80mph in my P6B - complete with bulging sidewalls...
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1986 Citroen 2CV Dolly Other things. Check out my Blog for the latest! www.hubnut.org |
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Dec 11, 2007 22:15:58 GMT
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I've some on a J import here, only 4 years old but all of them are square!! lethal they are
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Resident Toyota Geek Current Fleet: HDJ81 Landcruiser, GZ20 Soarer, JZX81 Cresta
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Dec 11, 2007 22:57:23 GMT
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do you think products put on to rubber like all these waxing agents can be detrimental? or is it just use/lack of use?
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I've got some wheels and tyres on the T3, just to keep it off the floor. Have no intention of using said tyres on the road since they appear to be older than me... they're radials, but they're the old 165R15 type, not 165/65R15. The sidewalls have massive cracks in and they have flatspots where they've stood for two years or more, semi-inflated. When inflaed properly, the flatspots remain!
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Never trust a man
Who names himself Trevor.
Or one day you might find
He's not a real drug dealer.
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Dec 12, 2007 12:21:41 GMT
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do you think products put on to rubber like all these waxing agents can be detrimental? or is it just use/lack of use? the rubber int he tyres breaks down due to a photosensitive reaction with sunlight. They basically just rot like a vampire, but slower. |
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1937 Austin Street Rod - 1941 Wolseley Not Rod - 1956 Humber Hawk - 1957 Daimler Conquest - 1966 Buick LeSabre - 1968 Plymouth Sport Fury - 1968 Ford Galaxie - 1969 Ford Country Squire - 1969 Mercury Marquis - 1970 Morris Minor - 1970 Buick Skylark - 1970 Ford Galaxie - 1971 Ford Galaxie - 1976 Continental Mark IV - 1976 Ford Capri - 1976 Rover V8 - 1994 Ford Fiesta
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[*]
[*]
Old Pirellis used to be favourite, especially the rear on FWD stuff. distort long before they wear out. Got some really nice Colway remoulds that were on the Opel when I got it. I don't think the tread dropped all the years I used them 
