MK5 Golf GTI

All Things Mk5 => Mk5 General Area => Topic started by: Mandy on July 20, 2012, 09:02:05 am

Title: Tyre wear, inner and outer edges.
Post by: Mandy on July 20, 2012, 09:02:05 am
What does it mean if both rear tyres have tread as follows:

Outer:   Middle:    Inner:
7mm     8mm       7mm

Does it mean they need to be inflated a bit more? (Currently 37psi).

 :smiley:
Title: Re: Tyre wear, inner and outer edges.
Post by: Apollo on July 20, 2012, 09:03:37 am
The wear would indicate UNDER inflation ...

(https://www.mk5golfgti.co.uk/forum/proxy.php?request=http%3A%2F%2Fwww.valuetyres.co.uk%2Fimages%2Fmisc%2Finflation.jpg&hash=26f82769dd706b2c013a8fe8fb35b769466f6eb2)
Title: Re: Tyre wear, inner and outer edges.
Post by: rich83 on July 20, 2012, 09:06:58 am
The wear would indicate OVER inflation ...

Wrong way around :happy2:


Sounds like  a fraction under inflation mandy... but 37PSI is correct!  :confused:

I would expect some variation over the width of the tyre.
Title: Re: Tyre wear, inner and outer edges.
Post by: Apollo on July 20, 2012, 09:08:31 am
Yeah have corrected and added a pic ......I cant multi task - Dunking my bourbon into my coffee and typing/thinking at the same time......epic fail  :fighting:
Title: Re: Tyre wear, inner and outer edges.
Post by: Mandy on July 20, 2012, 09:09:23 am
Thanks, I thought it meant that,

It's not on my golf but my bf's, maybe he should try 39psi on the rears?
Title: Re: Tyre wear, inner and outer edges.
Post by: rich83 on July 20, 2012, 09:10:55 am
.... i wouldnt do that. More air in rear tyres = potentially less grip = into a tree backwards  :signLOL:

What tyres are they mandy?
Title: Re: Tyre wear, inner and outer edges.
Post by: Apollo on July 20, 2012, 09:11:55 am
Thanks, I thought it meant that,

It's not on my golf but my bf's, maybe he should try 39psi on the rears?

Inside the fuel cover is a sticker with tyre pressure on it - For a standard Mk5 GTI its 2.40 bar = 35 psi without passengers/load
Title: Re: Tyre wear, inner and outer edges.
Post by: Mandy on July 20, 2012, 09:15:10 am
.... i wouldnt do that. More air in rear tyres = potentially less grip = into a tree backwards  :signLOL:

What tyres are they mandy?

 :signLOL:

I think they are some sort of Falkens...
Title: Re: Tyre wear, inner and outer edges.
Post by: rich83 on July 20, 2012, 09:17:39 am
Ahh.... Falkens are awful and in my experience they wear badly and unevenly. Leave the pressure as stated in the fuel cap (as apollo said)
Title: Re: Tyre wear, inner and outer edges.
Post by: Mandy on July 20, 2012, 09:26:55 am
Ah ok, thanks to you both. :happy2:
Title: Re: Tyre wear, inner and outer edges.
Post by: RENNTAG on July 20, 2012, 12:26:43 pm
Yes, i would say its the falkens.

I currently have falken FK425's  :ashamed: and have been getting more wear on the edges than i should. and not down to alignment as this has been done twice in the last year due to suspension mods.
Title: Re: Tyre wear, inner and outer edges.
Post by: tony_danza on July 20, 2012, 12:38:57 pm
It's because the tyre wall is soft and it deforms and scrubs at the edges on cornering, rather than using the whole footprint. sh*t tyre basically.
Title: Re: Tyre wear, inner and outer edges.
Post by: Mandy on July 20, 2012, 12:56:11 pm
It's because the tyre wall is soft and it deforms and scrubs at the edges on cornering, rather than using the whole footprint. sh*t tyre basically.

So is it worth inflating it up to 39psi or just leave it as it is?
Title: Re: Tyre wear, inner and outer edges.
Post by: rich83 on July 20, 2012, 01:04:22 pm
It's funny. This is the only forum where you can slate falken tyres and not get shot down for being a hater. :-)

Id leave the pressure as is Mandy you don't want over inflation. Just hope they wear down fast, then replace with decent tyres.
Title: Re: Tyre wear, inner and outer edges.
Post by: tony_danza on July 20, 2012, 01:30:38 pm
Leave them alone, 1mm isn't bad considering.
Title: Re: Tyre wear, inner and outer edges.
Post by: keano on July 21, 2012, 09:49:15 am
You should see the tyres on those 17s I bought rich. Wanleechingchonga's. They are hilariously bad.
Title: Re: Tyre wear, inner and outer edges.
Post by: RedRobin on July 21, 2012, 09:58:52 am
.
What does slight extra wear on just the inside edge of one front tyre indicate?
Title: Re: Tyre wear, inner and outer edges.
Post by: QD MBE on July 21, 2012, 10:09:45 am
probable Tracking issue, too much camber on that side etc.
Title: Re: Tyre wear, inner and outer edges.
Post by: fab5freddy on July 21, 2012, 10:17:16 am
.
What does slight extra wear on just the inside edge of one front tyre indicate?

Robin I've been running 2.5- neg camber with the TT arms and ball joints for a good year now and have had no issues with inside wear. Too the best of my knowledge it's incorrect toe + or - that will cause uneven wear  :happy2:
Title: Re: Tyre wear, inner and outer edges.
Post by: RedRobin on July 21, 2012, 10:20:04 am
^^^^
Cheers, Freddy  :happy2:

I'll be having a full alignment done when my SuperPro bushes are fitted soon, so that'll be a good time for any correction.
Title: Re: Tyre wear, inner and outer edges.
Post by: rich83 on July 21, 2012, 11:26:51 am
^^^^
Cheers, Freddy  :happy2:

I'll be having a full alignment done when my SuperPro bushes are fitted soon, so that'll be a good time for any correction.


As above.. tracking, or maybe even worn bushes.
Title: Re: Tyre wear, inner and outer edges.
Post by: alackofspeed on July 21, 2012, 08:19:20 pm
.
What does slight extra wear on just the inside edge of one front tyre indicate?

Pretty common on FWD mac-strut cars. Generally it's the inside edge of the offside front that gets scrubbed slightly more than the nearside, due in the main to roundabouts. It's not necesssarily a static geometry issue.
Title: Re: Tyre wear, inner and outer edges.
Post by: RedRobin on July 21, 2012, 08:44:05 pm
.
What does slight extra wear on just the inside edge of one front tyre indicate?


Pretty common on FWD mac-strut cars. Generally it's the inside edge of the offside front that gets scrubbed slightly more than the nearside, due in the main to roundabouts. It's not necesssarily a static geometry issue.


....It is precisely that: The offside front's inner edge. I do enjoy attacking roundabouts, especially as I have a Quaife diff and a nice suspension setup. It's good to know it's not a static geometry issue. Thanks  :drinking: