Thread: Flat repair
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Old August 14th 18, 08:34 PM posted to rec.bicycles.tech
Duane[_2_]
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Default Flat repair

On 14/08/2018 3:32 PM, Ralph Barone wrote:
Duane wrote:
On 14/08/2018 12:07 PM, jbeattie wrote:
On Tuesday, August 14, 2018 at 7:10:28 AM UTC-7, wrote:
On Monday, August 13, 2018 at 5:25:28 PM UTC-7, jbeattie wrote:
On Monday, August 13, 2018 at 3:49:02 PM UTC-7, wrote:
On Monday, August 13, 2018 at 3:03:25 PM UTC-7, news18 wrote:
On 14/08/18 04:15, wrote:
Can you people explain to me why you would buy innertubes, flat
repair kits and various methods of inflating flatted tires when you
don't have to flat a tire and only need to inflate it if you happen
to get a large enough hole in it release sufficient air to soften
the tire before it seals again?

1. Lock-in. For the ignorant, and you have to be ignorant not to have
noticed how manufacturers try to lock customers into their product by
making it incompatible with products from other manufacturers. Heck,
they even make their new products incompatible with their own products.

2. Performance. I always laugh at claims of superior performance when
they relie on results from very narrow test conditions.

3. Reliability; tubeless setup fails once. Tube and tyre need to fail
twice to have you walking.

1. Exactly HOW are manufacturers trying to "lock us in" to their
product when virtually every new wheels and every new tire tubeless compatible?

2. If you have ever run tests on mechanical components in your life
than you know that it is impossible to test for every condition. What
we have seen is testing by at least a half dozen source from tire
manufacturers to Cycling News testing the rolling resistance of
narrow to wide tires and they all report the same outcome - the
rougher the roads the less rolling resistance wider tires at lower
pressures have compared to narrower higher pressure tires. That is
not "very narrow test conditions". The last video showed rolling
resistance of the three different TYPES of tires. This was not meant
to give precise measurements but relative differences. And as should
come as not surprise to anyone capable of engineering, the tire that
has the least intercomponent friction the less the relative rolling
resistance. Again, these do nothing more than burst myths that have
been surrounding bicycle tires for a long time. Anyone that went from
the older 18 mm tires at 160 psi to 23 mm tires at 110 psi could and did report this.

3. Tubeless tires cannot fail from small goathead thorns or wires
left on the road by wearing through steel belted tires that give you
a tube tire flat. A dramatic cut in the tire will destroy them BOTH equally.

Obviously you like carrying around two tubes, a patch kit, two CO2
cartridges and a filler and a mini-pump because it seems romantic to you.

You are perfectly free to feel that the same technology used on every
other rubber tired vehicle in the world is not suited to bicycles but
if you're going to argue, don't use inadequate responses like "lock
you in to their products"
or "testing procedures are only for very narrow test conditions."
when this isn't the case at all. It is far easier to test bicycle
tire performance than those of a motorcycles.

What do you do if a tubeless tire goes belly-up on a ride? Nothing is
indestructible. I would still carry a tube and a pump and/or a CO2
cartridge even if I was on tubeless.

-- Jay Beattie.

How does a tubeless tire go "belly up" on a ride under different
conditions than it would a tube tire? Explain to us all what you do if
you get a massive cut or a broken cord on your tube tire? I really have
a hard time dealing with people that don't think out what they are responding with.

I boot casings with a dollar bill or a Cliff bar wrapper, held in place
by an inner tube. What's the fix on a tubeless tire when you cut a
casing or get a hole that won't self-seal?


Same here. And the new paper money in Canada is plastic which works
really well for booting a slit tire.
I have no idea what you would do for tubeless tires.



Yeah, but at an MSRP of $5, there's a real incentive to use something else
to boot your tire, like a chunk of Tyvek.


It's not like I'm going to keep the 5 bucks in the tire for very long
once I get home...
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