View Single Post
  #29  
Old September 4th 17, 09:33 PM posted to rec.bicycles.tech
AMuzi
external usenet poster
 
Posts: 13,447
Default Mr.Tuffy liner for road bikes ok? Or 2nd tube?

On 9/4/2017 2:10 PM, Joerg wrote:
On 2017-09-03 19:07, John B. wrote:
On Sun, 03 Sep 2017 07:48:22 -0700, Joerg

wrote:

On 2017-09-02 18:01, John B. wrote:
On Sat, 02 Sep 2017 07:45:08 -0700, Joerg

wrote:

On 2017-08-31 18:30, John B. wrote:
On Thu, 31 Aug 2017 11:55:10 -0700, Joerg

wrote:

Yesterday I had another two (!) sidewall punctures.
Long story short I
will definitely not recommend CST Conquistare tires.
Wore out in less
than 1200mi and then weakened which is just
unacceptable. So thumbs down
from me.

This brings up two questions:

1. The Mr.Tuffy orange liners for 700c narrow tires.
They must be laid
in with a wee overlap. Will that overlap cause a 700c
25mm tire at
110psi to run bumpy? Like whop .. whop .. whop every
time the overlap
comes around?

2. What about taking a second (otherwise discarded)
thorn-resistant
tube, slit it open on the inside and slide it over
the real
thorn-resistant as a 2nd layer?

The problem is that Kenda seems to have discontinued
selling
thorn-resistant tubes with good and most of all same
thickness all
around but now the thickness tapers off towards the
sidewalls. That's
where they fail. Same for Sunlite which I had to
re-order yesterday
because those things are essentially unfixable with
those thin REMA patches.

Any words of wisdom? As usual, weight absolutely does
not matter.

In case anyone knows: I read somewhere that smugglers
"inflate" their
vehicle tires with some sort of hardening sealant
(Silicone?
Construction foam?) that makes the tires
bullet-proof. What material is
it and how do they get it in there thoroughly enough?
Would it be good
for a couple of thousand miles?

I don't know about smugglers but yes you can buy foam
to use in tires.
See
https://www.youtube.com/watch?v=pgv4UiDQa74
http://www.accellatirefill.com/

and I assume other sites.


Thanks. Tyrfil is what Andrew brought up and I'll
contact them next week.

I'd like to have a similar firm tire behavior as if it
was pumped up
with air to 110psi. Riding comfort isn't very
important, durability is.

A google search for "foam filled bicycle tires" gets
372,000 hits.
such as:

https://www.amazon.com/Bell-Solid-No.../dp/B01HY12VOU

http://www.instructables.com/id/No-more-flat-tires/
http://www.livestrong.com/article/22...-tires-review/



I did web searches. None of the result were much good. I
was looking for
something that works, preferrably via squirting through
the valve stem
into a regular tube. There was a report of smugglers who
had inflated
their tires with something from cans and that made them
not go flat when
shot at. Unfortunately the report did not state what was
in those cans.

The main objective of my post was different though, this
was just a side
question in case anyone happened to know.


There is a sort of "slime" that comes in pressurized cans
that you can
inflate auto tires with that will seal some leaks. Which
you may have
been reading about.

But I suspect that you already know about that stuff.



I've tried that stuff on my MTB. After a few months I had it
with slime and threw those tubes away. The slime oozed out
everywhere and I got lots of slow flats where I had to pump
two or three times on the ride home. In any case that
essentially ended the ride. Plus a green mess on the garage
floor that the missus didn't appreciate. Especially because
of the risk of stepping into a splotch and carrying it onto
carpet in the house.

I replaced them with thick and heavy thorn-resistant tubes
plus tire liner. Never looked back.

Now that one rider had sent me an email that tire liner
won't cause uneven rolling on a road bike I ordered a couple
rolls. Actually bid on them on EBay just for fun (my first
time bidding). I ended up winning. $1.25 plus $4 shipping.
If I'd order those at an online shop it would cost around
$12 total, $20 at a LBS and I'd have to ride to Folsom for
that. If they even stock them.


Aside from all being "things which some people put inside
pneumatic tires", there's no other similarity among Slime,
aerogel foam or urethane sealer.

--
Andrew Muzi
www.yellowjersey.org/
Open every day since 1 April, 1971


Ads
 

Home - Home - Home - Home - Home