God, tubeless tyres can be a sweat sometimes
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From: The Older Gentleman on 6 Jun 2010 11:20 Even on a little GN250.... Front, no problem, but the back is quite a fat 16" thing and much sweat was expended this afternoon[1]. I really ought to get myself a tyre changer. Anyway, two new decent quality Metzelers are now on the rims. The question, though, is this: not many of the decent brands sold in the UK seem to make tube fitment tyres for anything other than very small bikes (commuter 125s and smaller) these days. Just about everything is tubeless, take it or leave it, and if you want to shove a tube in it, go ahead. And as the GN250 doesn't have tubeless fitment wheels, that's what I've done, of course. Is it the same in the USA? Secondly, I'm assuming there's damn all difference in feel and performance, but I was just wondering if anybody has ever done a back-to-back comparison. I've nevr seen one in the press. I suppose ther's no real point, but like I say, I was just idly wondering. [1] And one tyre lever bent. -- BMW K1100LT Ducati 750SS Honda CB400F Triumph Street Triple Suzuki TS250ER GN250 Damn, back to six bikes! Try Googling before asking a damn silly question. chateau dot murray at idnet dot com
From: A.Lee on 6 Jun 2010 11:38 The Older Gentleman <totallydeadmailbox(a)yahoo.co.uk> wrote: > Anyway, two new decent quality Metzelers are now on the rims. > > The question, though, is this: not many of the decent brands sold in the > UK seem to make tube fitment tyres for anything other than very small > bikes (commuter 125s and smaller) these days. Just about everything is > tubeless, take it or leave it, and if you want to shove a tube in it, go > ahead. And as the GN250 doesn't have tubeless fitment wheels, that's > what I've done, of course. I've wondered about this. 20 years ago I fitted a tubeless tyre to the BSA with a tube in it. After 6 months or so, I had a failry rapid puncture. When taking out the tube, it was marked all the way round, from the ribs on the inside of the tyre. These were clearly rubbing against the tube and had caused the puncture. A mate who worked in the car tyre fitters next door said it was quite common with older cars that still had tubes, and they would never fit a tube into a tubleless tyre, as they knew it would blow-out at some time in the future. I bit the bullet and bought a 'new' Avon Roadmaster tubed tyre so didnt encounter it again. Have things moved on since, with tubes being compatible with tubeless tyres? Alan. -- To reply by e-mail, change the ' + ' to 'plus'.
From: wessie on 6 Jun 2010 11:42 totallydeadmailbox(a)yahoo.co.uk (The Older Gentleman) wrote in news:1jjoaf6.1hmq7qg54se0kN%totallydeadmailbox(a)yahoo.co.uk: > Even on a little GN250.... > > Front, no problem, but the back is quite a fat 16" thing and much sweat > was expended this afternoon[1]. I really ought to get myself a tyre > changer. > > Anyway, two new decent quality Metzelers are now on the rims. > > The question, though, is this: not many of the decent brands sold in the > UK seem to make tube fitment tyres for anything other than very small > bikes (commuter 125s and smaller) these days. Just about everything is > tubeless, take it or leave it, and if you want to shove a tube in it, go > ahead. And as the GN250 doesn't have tubeless fitment wheels, that's > what I've done, of course. > The semi-off road tyres, e.g. Metzeler Tourance, made for bikes like the Tiger & R-GS are dual purpose. Tubed or tubelss fitments are approved. IIRC, early Tigers have spoked wheels that need tubes. My bike has spoked wheels but of the variety where tubeless tyres fit okay as the spokes are in the rim, outside the bead. I think it is fairly common for people to fit tubes after a puncture on these bikes. I haven't done it so cant give a personal view if there is a difference in handling, but I can't see why there would be. -- wessie at tesco dot net BMW R1150GS
From: Grimly Curmudgeon on 6 Jun 2010 12:04 We were somewhere around Barstow, on the edge of the desert, when the drugs began to take hold. I remember alan(a)darkroom.+.com (A.Lee) saying something like: >When taking out the tube, it was marked all the way round, from the ribs >on the inside of the tyre. These were clearly rubbing against the tube >and had caused the puncture. A mate who worked in the car tyre fitters >next door said it was quite common with older cars that still had tubes, >and they would never fit a tube into a tubleless tyre, as they knew it >would blow-out at some time in the future. Yah, and it's never like a tyre fitter to spout bollocks, at all.
From: The Older Gentleman on 6 Jun 2010 12:06
A.Lee <alan(a)darkroom.+.com> wrote: <snip> > Have things moved on since, with tubes being compatible with tubeless > tyres? Well, that's what I assume. My own dealer said: "They're all made tubeless these days..." -- BMW K1100LT Ducati 750SS Honda CB400F Triumph Street Triple Suzuki TS250ER GN250 Damn, back to six bikes! Try Googling before asking a damn silly question. chateau dot murray at idnet dot com |