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"Thats IMPOSSIBLE my tires have kevlar" An LBS Story(11 posts)

"Thats IMPOSSIBLE my tires have kevlar" An LBS Storyteoteoteo
Nov 4, 2003 4:06 PM
Funny true story from today at the shop. Customer comes in throwing a tantrum because he'd paid for a flat repair yesterday--he picked up the bike, rode home and when he woke up it was flat. We take the high rode and give the guy a new tube and install it free. When he comes to pick it up he throws a second fit when the service tech gives him the thorn from his tire.

"Thats IMPOSSIBLE my tires have kevlar" and goes on to say throns can't pierce his kevlar tires. We explained the kevlar was in the bead but he still left in a huff and skeptical......
re: "Thats IMPOSSIBLE my tires have kevlar" An LBS StoryT-Doc
Nov 4, 2003 5:12 PM
Hey- it's MXL02 from Houston, changed my screen name. Anyway, just wanted to comment on your story, since my relationship with LBS's undergoes constant evolution. Recently I've been pondering the paradox that most LBS's make their money off people who aren't enthusiasts and therefore not very knowledgable, like your example above, versus, more knowledgeable riders, who wouldn't have come to you for flat repair in the first place. It's like you are condemned to put up with their idiocy, to get their business. Thoughts?
How about the high income folks, with fast motors andfrayed
Nov 4, 2003 7:02 PM
knowledge, who would rather have the shop take care of their needs than burn the time themselves.

It's all a matter of $/hr. $300/hr vs. $20/hr.

Anyway, such folks are likely in the minority, and your point is a compelling one. I see the same parellel in motorsports frequently.
Zen and the Art of Motorcycle Maintenancepitt83
Nov 5, 2003 5:12 AM
That will explain this entire argument. An excellent book. It will show you how another way of looking at things is logical to others.

What gets me in that book is the gas grill chapter. He buys a gas grill and can't put it together. But, he ratinolizes that SOMEONE knows how because someone designed and shipped the grill that way. It must be a solvable problem.

I think most cyclists and amateur wrenches will appreciate the book. Your local library undoubtedly has a copy.
THAT's why I have never worked in retail...biknben
Nov 4, 2003 6:00 PM
...and I'm thankful!!!

Bless you for putting up with this stuff.
Plenty of grateful happy customers tooCoolhand
Nov 5, 2003 7:21 AM
Nobody ever posts about them. New riders happy to be treated with respect even though they have lots and lots of basic questions. Grandmothers happy to get help picking out a nice kid's bike for their grandson. A "newly hardcore" rider who is happy for you steering them away from shaky products and into better stuff at the same price or less. The new to the area rider who is pumped to get directions to lots of new trails they had never seen. Moms that are happy that you took 30 minutes to properly fit and adjust all of the kid's helmets she just bought for her kids. The panicked out-of-town racer with the broken part and race tomorrow who you bail out, even though they came in 10 minutes before closing with a 45 minute repair.

I only do the LBS thing part-time, but there is plenty of good things about working there. Not to mention employee purchase deals. . . .

Coolhand
Put him in a bullet proof vest...Scot_Gore
Nov 4, 2003 6:07 PM
...shoot him in the head and put "That's Impossible, I Have Kevlar" on his tombstone.

my 2 cents

Scot
Sounds like another 'fred' story (nm)AJS
Nov 4, 2003 7:26 PM
~
Some tires do have kevlar in the treadCHRoadie
Nov 5, 2003 7:46 AM
Vittoria, for instance.

http://www.vittoria.com/technology.htm#kevlar

However, having owned a pair of Open Corsa CX tires (which have a layer of kevlar), I can tell you that it is just as vulnerable to glass and thorns. In fact, my Corsas were the worst wearing tires I have ever owned.
but kevlar isn't impermeable.jw25
Nov 5, 2003 10:17 AM
There was a news item a year or two ago about Army boys playing around with a kevlar vest. One decided to demonstrate with a knife, and ended up killing the guy wearing the vest.
The moral: blunt objects and sharp objects are very different things. A knife point can develop millions of foot-lbs of pressure at the tip, and very little can stand up to that. It's a matter of force vs. area - a sharp knife can taper down to tens of atoms wide at the edge, which magnifies greatly the pounds of force exerted. Glass or obsidian knives, used in delicate surgeries, can actually cleave to a single molecule wide edge, which helps explain how glass can cut through your tire so easily.
Now, some tires do have subtread belts of kevlar or some other cut-resistant material, but they tend to affect the ride, as they aren't as flexible as the casing material.
Some other tires have kevlar fibers in the tread rubber, to decrease the tread density and increase local strength of the tread, butthe fibers are much too short, and randomly aligned, to provide puncture-resistance.
Good one. I wish I had time to write a few LBS stories myself! -nmTig
Nov 5, 2003 7:49 PM