[RBW] Re: Tire Casing Quiz
They look pretty similar in your photo. How do they feel in your fingers? On Sunday, January 12, 2014 5:51:57 PM UTC-8, Eric Norris wrote: Pop quiz: There are two tires here. Which is the Grand Bois Hetre, and which is the Col de la Vie? -- You received this message because you are subscribed to the Google Groups RBW Owners Bunch group. To unsubscribe from this group and stop receiving emails from it, send an email to rbw-owners-bunch+unsubscr...@googlegroups.com. To post to this group, send email to rbw-owners-bunch@googlegroups.com. Visit this group at http://groups.google.com/group/rbw-owners-bunch. For more options, visit https://groups.google.com/groups/opt_out.
Re: [RBW] Re: Tire Casing Quiz
To All: The casing on the top is, in fact, the Hetre. Point of my photo is that there’s little to discern the tire casings—visually, at least. As one responder noted, the Hetre has a folding bead, so that looks different; the casings, and the density of threads in the plies, looks the same. I wonder if most of the different between the Hetre and a Col de la Vie is in the tread (thickness, design, material)? The two tires certainly ride differently—the Hetre feels much better—but you wouldn’t know that to look at the casings. --Eric Norris Email: campyonly...@me.com Web: www.campyonly.com Blog: http://campyonlyguy.blogspot.com Twitter: @CampyOnlyGuy Flickr: www.flickr.com/photos/campyonlyguy On Jan 13, 2014, at 10:10 AM, Bill Lindsay tapebu...@gmail.com wrote: They look pretty similar in your photo. How do they feel in your fingers? On Sunday, January 12, 2014 5:51:57 PM UTC-8, Eric Norris wrote: Pop quiz: There are two tires here. Which is the Grand Bois Hetre, and which is the Col de la Vie? -- You received this message because you are subscribed to the Google Groups RBW Owners Bunch group. To unsubscribe from this group and stop receiving emails from it, send an email to rbw-owners-bunch+unsubscr...@googlegroups.com. To post to this group, send email to rbw-owners-bunch@googlegroups.com. Visit this group at http://groups.google.com/group/rbw-owners-bunch. For more options, visit https://groups.google.com/groups/opt_out. -- You received this message because you are subscribed to the Google Groups RBW Owners Bunch group. To unsubscribe from this group and stop receiving emails from it, send an email to rbw-owners-bunch+unsubscr...@googlegroups.com. To post to this group, send email to rbw-owners-bunch@googlegroups.com. Visit this group at http://groups.google.com/group/rbw-owners-bunch. For more options, visit https://groups.google.com/groups/opt_out.
[RBW] Re: Tire Casing Quiz
The only diff I can tell is less rubber, as you can see the threads are practically emerging from the rubber on the Hetre. But there must be something else because the Hetres cost so much. -- You received this message because you are subscribed to the Google Groups RBW Owners Bunch group. To unsubscribe from this group and stop receiving emails from it, send an email to rbw-owners-bunch+unsubscr...@googlegroups.com. To post to this group, send email to rbw-owners-bunch@googlegroups.com. Visit this group at http://groups.google.com/group/rbw-owners-bunch. For more options, visit https://groups.google.com/groups/opt_out.
Re: [RBW] Re: Tire Casing Quiz
Hi Mike. I think one reason the Hetre costs what it does is to pay for the molding. The Col de la Vie tire has been around for a long time and thus, that chunk of overhead is probably no longer a factor in its pricing. Best, Lee On Mon, Jan 13, 2014 at 3:26 PM, Michael john11.2...@gmail.com wrote: The only diff I can tell is less rubber, as you can see the threads are practically emerging from the rubber on the Hetre. But there must be something else because the Hetres cost so much. -- You received this message because you are subscribed to the Google Groups RBW Owners Bunch group. To unsubscribe from this group and stop receiving emails from it, send an email to rbw-owners-bunch+unsubscr...@googlegroups.com. To post to this group, send email to rbw-owners-bunch@googlegroups.com. Visit this group at http://groups.google.com/group/rbw-owners-bunch. For more options, visit https://groups.google.com/groups/opt_out. -- You received this message because you are subscribed to the Google Groups RBW Owners Bunch group. To unsubscribe from this group and stop receiving emails from it, send an email to rbw-owners-bunch+unsubscr...@googlegroups.com. To post to this group, send email to rbw-owners-bunch@googlegroups.com. Visit this group at http://groups.google.com/group/rbw-owners-bunch. For more options, visit https://groups.google.com/groups/opt_out.
[RBW] Re: Tire Casing Quiz
And well worth it. On Monday, January 13, 2014 5:26:21 PM UTC-6, Michael wrote: The only diff I can tell is less rubber, as you can see the threads are practically emerging from the rubber on the Hetre. But there must be something else because the Hetres cost so much. -- You received this message because you are subscribed to the Google Groups RBW Owners Bunch group. To unsubscribe from this group and stop receiving emails from it, send an email to rbw-owners-bunch+unsubscr...@googlegroups.com. To post to this group, send email to rbw-owners-bunch@googlegroups.com. Visit this group at http://groups.google.com/group/rbw-owners-bunch. For more options, visit https://groups.google.com/groups/opt_out.
[RBW] Re: Tire Casing Quiz
Making a tire with less rubber (i.e., a thinner casing) means there is less room for error and tolerances need to be tighter. This is probably part of what necessitates the extra cost. Also, I could imagine that making tires to higher standards means there are fewer tires that meet those standards which then get thrown out. Another way cost is added to the process. Aaron just speculating Young The Dalles, OR On Mon, Jan 13, 2014 at 3:26 PM, Michael john11.2...@gmail.com wrote: The only diff I can tell is less rubber, as you can see the threads are practically emerging from the rubber on the Hetre. But there must be something else because the Hetres cost so much. -- You received this message because you are subscribed to the Google Groups RBW Owners Bunch group. To unsubscribe from this group and stop receiving emails from it, send an email to rbw-owners-bunch+unsubscr...@googlegroups.com. To post to this group, send email to rbw-owners-bunch@googlegroups.com. Visit this group at http://groups.google.com/group/rbw-owners-bunch. For more options, visit https://groups.google.com/groups/opt_out. -- You received this message because you are subscribed to the Google Groups RBW Owners Bunch group. To unsubscribe from this group and stop receiving emails from it, send an email to rbw-owners-bunch+unsubscr...@googlegroups.com. To post to this group, send email to rbw-owners-bunch@googlegroups.com. Visit this group at http://groups.google.com/group/rbw-owners-bunch. For more options, visit https://groups.google.com/groups/opt_out.
Re: [RBW] Re: Tire Casing Quiz
The biggest difference between the Grand Bois tires (standard model) and the lesser Panaracer tires (Pasela, Col de la Vie) is the angle of the casing layers. Zero degrees would be a radial tire, but that doesn't work without a steel belt to hold it all together. However, the closer you get to a radial, the more supple the tire gets. As others pointed out, when you get closer to the edge, you have to work much more carefully, since the margin of error is smaller. That – and the cost of the mold – are the main reasons the Hetre is more expensive to make. The tread rubber is a little different, which adds to the cost, too. For the Extra Leger version, the casing is made of finer threads (higher TPI), but that alone doesn't account for the better performance. There are a few other, proprietary things that make that tire even more comfortable and fast, but unfortunately, also more expensive. In the car world, the Pasela would be a BMW 3 series, the standard Grand Bois a BMW M3, and the Extra Léger one of the race-optimized special editions of the M3. The basic 3-series costs about 1/4 of the most expensive versions, even though they look the same from the outside... Jan Heine Compass Bicycles Ltd. www.compasscycle.com Follow our blog at http://janheine.wordpress.com/ -- You received this message because you are subscribed to the Google Groups RBW Owners Bunch group. To unsubscribe from this group and stop receiving emails from it, send an email to rbw-owners-bunch+unsubscr...@googlegroups.com. To post to this group, send email to rbw-owners-bunch@googlegroups.com. Visit this group at http://groups.google.com/group/rbw-owners-bunch. For more options, visit https://groups.google.com/groups/opt_out.
