Re: Tubeless tiresOn Apr 19, 5:30 am, XR650L Dave <spamTHIS...@yahoo . com > wrote:
> On Apr 19, 2:17 am, Eat Dirt <eatdirt...@gmail . com > wrote:
>
>
>
> > On Apr 16, 12:29 pm, JayC <j...@sysmatrix . net > wrote:
>
> > > Just ran across this:
>
> > > Tubeless operation with conventional tires? Seems cool.
>
> > > * w w w .niksindustries . com /pages/tubliss.php
>
> > > JayC
>
> > Just a few months ago I was dead last at a race. Couldn't understand
> > why, as I pushing as hard as I could. Till it finally hit me that I
> > had a flat tire. This isn't the first time a tire goes flat on me.
> > This day I had to scramble to borrow a damn tube from someone and
> > install it prior to moto 2. Managed to just in time.
>
> > So if a tubeless tire will mean worry free racing and no more silly
> > flats due to tube failure, than count me in.
>
> > btw never EVER buy heavy duty tubes. People are under the impression
> > that paying more a thicker layer of rubber to be a good thing. It
> > ain't. I learnt this the hard way too.
>
> What happened?
>
> They seem to keep me rollin'.
>
> Dave
The problem with heavy duty tubes is that they're prone to suffering
steam valve failure. More so, the rubber around it just tears. I
bought them thinking that the more money you throw on something that
claims to be heavy duty to be a good thing, especially on a front tire
with all the abuse they take on a hard packed mx track, with some nice
sized bolders along the way. Just last year I had just put a heavy
duty tube on the front tire (new tire and tube combo). It didn't last
a week. As I took it apart while at the mx track I was told by the
more experienced racers why heavy duty are a bad idea and how they
never use it. And they just had to point to the ripped steam valve to
have me convinced. Never had that happen with a "cheapo" normal tube.
They went on to say that this is a normal thing with the thicker tube
and that they had seen it time and again. To this day I don't
understand how a thicker rubber can tear more frequently than a
thinner one but I'm not about to bet on physics if taking such a
chance could render a moto with no points.
Lesson learned. It also re-emphasizes the point that not everything
that costs more to be better. I too learned this with the whole motor
oil thing.