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Stronger rubber cement?
On 2017-01-18 17:36, Phil Lee wrote:
Joerg considered Mon, 16 Jan 2017 10:01:41 -0800 the perfect time to write: On 2017-01-05 08:31, AMuzi wrote: On 1/5/2017 9:59 AM, Joerg wrote: On 2017-01-05 07:34, wrote: On Wednesday, January 4, 2017 at 8:47:35 PM UTC-8, Phil Lee wrote: Joerg considered Wed, 04 Jan 2017 07:38:10 -0800 the perfect time to write: On 2017-01-04 01:19, Tosspot wrote: On 04/01/17 01:04, Joerg wrote: Gentlemen, Is there something stronger than the usual rubber cement in the patch kits? Ideally something that won't dry out so fast or where multiple cheap small tubes are available. The reason is that I sometimes have larger holes from side wall blow-outs. Not inch-long gashes but one or two tenths of an inch long. The tubes I use are super thick and, therefore, expensive. $15-20 each and that's not something to be thrown out lightly. Instead of the li'l REMA patches I need to use thicker rubber from an older sacrified tube but this has to be vulcanized/cemented really well. UK, but must be available all over http://www.tyre-equipment.co.uk/acat...r-Patches.html Go up to 180mmx95mm and are less than a UKP per patch. Thanks! Time for a trip to the autoparts store since there is http://www.vipal-usa.com/repair_line_e.html Looks like a Brazilian company. The 30mm patches are 13 squids per 100! Surely, surely even Joerg can't get through that amount that fast! I hardly get flats but when I do they are hardcore. Typically caused by those notorious #%&^!! flimsy side walls of bicycle tires. Which is also why I am always on the lookout for tires with better side walls. For the MTB I found that Asian ones do better in that domain but haven't found any yet for the road bike. Will try CST, their Conquistare tires look promising but I could not find reviews. Heavier tires are generally better and finally those appeared for 29". For 700c it's still slim pickens. You do know that 29" ARE 700c, both using a bead seat diameter of 622mm? It's just that one description is used for MTB and the other for road use. I have been told that many times. But my CX bike feels absolutely NOTHING like the 29er did. On that the wheels felt massive and heavy. On the CX bike they are nothing of the sort. Phil should try to mount a 29" Intense Trail Taker tire or similar on a 700c road bike. Then it would quickly sink in why this will never work :-) Joerg, don't be ridiculous. Phil Lee was correct. Tires formally labeled as 29" are simply not available in 25mm. At least AFAICT. I know you struggle with the real world, and complex mathematical concepts like wheel diameters, but surely even YOU can add 2x 25mm to 622mm, and conclude that the result is less than 29"! Just in case, 672mm = 26.46, or in round figures, 26 1/2", so it's hardly surprising that it is not mislabeled as 29"! A 559mm 26x2.3 tire will mount on the rim but can't possibly fit inside the frame or fork of a Bridgestone CB1. So what? A perfectly common 700-35C touring tire won't clear in your road bike either. That unsuitably wide tires exist for any given rim diameter in any given frame doesn't make them different ISO sizes. There are a spectrum of widths for almost every ISO format, choice is good! Well, there aren't skinny 29" tires. The thing you need for compatibility is BEAD SEAT DIAMETER, which is 622mm for both the so-called 29" (which isn't really 29" except in 2.25" width, and even then only roughly), and so-called 700C (which again, isn't really 700mm in diameter in anything other than 39mm width either). The move from using overall diameter of a mounted and inflated tyre to the use of bead seat diameters, as approved by ISO and ETRTO is because it is only by using the bead seat diameter that you can tell which tyre fits which rim. And any 29", 700C, xx-622 will fit your rims, whatever width it may be. Of course, it may not be the ideal width for the rim, or too wide for the frame or forks, but it WILL mount on the rim. GET IT? The thing you need is the tire to _fit_ _through_ the chain stay. _No_ 29" tire does on my road bike. Get it now? I can only hope that you never have to deal with the complexities of the various 26" formats! p.s. A 700-18 ultralight tire would fit your road bike rim as well. For you, I'd suggest a wider tire. Yes, I had very narrow tires before and found that 25mm is better for where I now ride. 28mm would theoretically fit but only when the rear is very well trued which does not hold for long on my routes. I am also not very talented for trueing a wheel. Maybe that (along with your notable level of machinery abuse) is the real reason you insist that only disk brakes are worth using. They are vastly superior to rim brakes in rain, mud, sleet et cetera. Any MTB rider worth their salt knows this. Oh, they have a "minor" additional advantage: They do not eat rims. -- Regards, Joerg http://www.analogconsultants.com/ |
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