Tyres. Front tyres.
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From: Andy Bonwick on 9 Apr 2010 18:05 On Fri, 09 Apr 2010 22:25:44 +0100, Nige <ni(a)btinternet.com> wrote: >On 09/04/2010 22:19, Andy Bonwick wrote: >> 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. >> > >I got 6k out of a front with 3 rears :) I hope you're very happy.
From: ogden on 9 Apr 2010 18:08 doetnietcomputeren wrote: > On 2010-04-09 23:29:26 +0200, ogden <ogden(a)pre.org> said: > > > But since you're now talking about car tyres, > > I already was, but I hadn't realised that WUN wasn't, IYSWIM.> > > the grounds for failure > > for a car include: > > > > "The grooves of the tread pattern are not at least 1.6mm throughout a > > continuous band comprising 1) the central three-quarters of the breadth > > of tread, and 2) round the entire outer circumference of the tyre. > > Note: Each side of the central band of the tyre can be devoid of tread > > (ie. ?bald?) and still meet the pass standard although in practice such > > tyre wear is unlikely to occur. See diagram below" > > So, my point that, the outer edge can be near as bald as it gets If you ignore "and 2) round the entire outer circumference of the tyre", sure > , as > long as the actual tread pattern (which is the bit with wear > indicators), was about right then. Sounds pretty scientific to me. -- ogden | gsxr1000 | rgv250
From: Thomas on 9 Apr 2010 18:16 On Apr 9, 1:34 pm, Wicked Uncle Nigel <w...(a)wicked-uncle-nigel.me.uk> 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. Called "cupping" around here. Some is normal, but low tire pressure exacerbates it. > So how do you judge when it needs changing? I could care less what's legal. I change tires when I don't feel safe on them. Or when I'm traveling and know it'll be a while before I can get a new tire. If there is any part of the tire where the tread has disappeared, it's time to change, but I usually ride past where the wear bars say. I was very surprised once to see a tire had worn to the cords in one area, but had plenty of tread on the rest of the tire. I spin tires all the way round now when checking.
From: Lozzo on 9 Apr 2010 19:34 ogden wrote: > 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. I tend to sell the bike before it needs tyres and buy something different -- Lozzo Versys 650 Tourer, CBR600F-W racebike in the making, TS250C, RD400F (somewhere)
From: Ace on 10 Apr 2010 02:39
On 9 Apr 2010 23:34:56 GMT, "Lozzo" <lozzo(a)lozzo.org.uk> wrote: >ogden wrote: > > >> 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. > >I tend to sell the bike before it needs tyres and buy something >different Nige? Is that you? |