On 2017-08-31 17:38, Doug Landau wrote:
On Thursday, August 31, 2017 at 11:55:06 AM UTC-7, 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?
Those who are serious about not getting flats make their own mr tuffys from old tires
How do you do the overlap? It has to be cut because the radius inside is
a smidgen smaller than normal.
I was thinking about making my own Mr.Tuffy from a 2nd thorn-resistant
tube that is slit open lengthwise on the rim side. I'll see when the new
tube gets here next week. There should be enough compliance in the
rubber so there won;t be any wrinkles. Hopefully. The othe issue is that
the smallest these tubes come is 700 x 23/25mm and even 23mm is a bit
large if there is a another thick tube in there.
--
Regards, Joerg
http://www.analogconsultants.com/