Tyres. Front tyres.
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From: ogden on 9 Apr 2010 17:01 Wicked Uncle Nigel wrote: > No, not a "which one" thread. More of a "when?" thread. > > Look, this is a little embarrassing... > > OK, modern front tyres don't have a whole hell of a lot of tread to > begin with. And I have real trouble deciding what's legal, and what's > not when they get worn. > > My front tyres tend to "feather" in that the individual tread blocks > wear on the leading corner, so I end up with a tyre that looks pretty > worn and pretty new at the same time. > > So how do you judge when it needs changing? I tend to have mine replaced as a set, and the rear always wears out first. I know I could save a few quid by stringing the front along a bit longer but it hardly seems worth the effort. -- ogden | gsxr1000 | rgv250
From: ogden on 9 Apr 2010 17:05 doetnietcomputeren wrote: > On 2010-04-09 22:34:29 +0200, Wicked Uncle Nigel > <wun(a)wicked-uncle-nigel.me.uk> said: > > > No, not a "which one" thread. More of a "when?" thread. > > > > Look, this is a little embarrassing... > > > > OK, modern front tyres don't have a whole hell of a lot of tread to > > begin with. And I have real trouble deciding what's legal, and what's > > not when they get worn. > > > > My front tyres tend to "feather" in that the individual tread blocks > > wear on the leading corner, so I end up with a tyre that looks pretty > > worn and pretty new at the same time. > > > > So how do you judge when it needs changing? > > As I understand it, only the part of the tyre that has a wear indicator > is measurable.[1] You understand wrong. It has to be within limits for a continuous unbroken area covering 3/4 (I think) of the width of the tyre. That is to say it can't be within wear limits for the 1/4 nearest the edge on one side and the whole of the other side, but it can be fucked for the quarter nearest the edge on one side. -- ogden | gsxr1000 | rgv250
From: Ace on 9 Apr 2010 17:12 On Fri, 09 Apr 2010 21:54:10 +0100, YTC#1 <bdp-spambin(a)ytc1.co.uk> wrote: >On Fri, 09 Apr 2010 22:52:32 +0200, Ace wrote: > >> On Fri, 9 Apr 2010 21:34:29 +0100, Wicked Uncle Nigel >> <wun(a)wicked-uncle-nigel.me.uk> wrote: >>>So how do you judge when it needs changing? >> >> Same as it ever was - if there's still some rubber covering the canvas >> there's still some life left. > >Canvas ! > >Pah ! Yebbut, these days they're all tubeless, innit?
From: doetnietcomputeren on 9 Apr 2010 17:13 On 2010-04-09 23:05:55 +0200, ogden <ogden(a)pre.org> said: > doetnietcomputeren wrote: >> On 2010-04-09 22:34:29 +0200, Wicked Uncle Nigel >> <wun(a)wicked-uncle-nigel.me.uk> said: >> >>> No, not a "which one" thread. More of a "when?" thread. >>> >>> Look, this is a little embarrassing... >>> >>> OK, modern front tyres don't have a whole hell of a lot of tread to >>> begin with. And I have real trouble deciding what's legal, and what's >>> not when they get worn. >>> >>> My front tyres tend to "feather" in that the individual tread blocks >>> wear on the leading corner, so I end up with a tyre that looks pretty >>> worn and pretty new at the same time. >>> >>> So how do you judge when it needs changing? >> >> As I understand it, only the part of the tyre that has a wear indicator >> is measurable.[1] > > You understand wrong. really? > > It has to be within limits for a continuous unbroken area covering 3/4 > (I think) of the width of the tyre. That is to say it can't be within > wear limits for the 1/4 nearest the edge on one side and the whole of > the other side, but it can be fucked for the quarter nearest the edge on > one side. So tell me how that works on this: http://www.ziemasriepas.lv/images/upload/MichelinPilotSportCup/large_Michelin_SPORT_CUP.jpg given that there is no measurable tread on the outer 1/3rd of the tyre when new. -- Dnc
From: Andy Bonwick on 9 Apr 2010 17:19
On Fri, 9 Apr 2010 22:01:52 +0100, ogden <ogden(a)pre.org> wrote: >Wicked Uncle Nigel wrote: >> No, not a "which one" thread. More of a "when?" thread. >> >> Look, this is a little embarrassing... >> >> OK, modern front tyres don't have a whole hell of a lot of tread to >> begin with. And I have real trouble deciding what's legal, and what's >> not when they get worn. >> >> My front tyres tend to "feather" in that the individual tread blocks >> wear on the leading corner, so I end up with a tyre that looks pretty >> worn and pretty new at the same time. >> >> So how do you judge when it needs changing? > >I tend to have mine replaced as a set, and the rear always wears out >first. I know I could save a few quid by stringing the front along a bit >longer but it hardly seems worth the effort. This ties in with the way I work it. A front will last maybe 50% longer than a rear tyre but if the front is fucked when the rear is still good you tend to ignore it until both need replacing. Not a good idea. |