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Old September 1st 17, 02:30 AM posted to rec.bicycles.tech
John B.[_3_]
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Posts: 5,697
Default Mr.Tuffy liner for road bikes ok? Or 2nd tube?

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.
--
Cheers,

John B.

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