Tubes in UST Tires??



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T_blood

Guest
Quick Question....is it normal for bike manufacturers to put tubes in UST tire sets? I have a fairly
new bike that I have never had the tires off of before. I wasn't pleased with the stock tires so I
bought a new set of UST'S. Well....today while replacing them I took the stock UST tires off and
they had tubes in them! Is this normal practice? My set-up is a 2002 Giant ACDS 2 with Michelin UST
DH comps with Rigida UST rims. I thought maybe at first one of the two components weren't UST but I
checked and the tires have the bead as well as a place for the bead on the rim. Does anyone know
where I may purchase a valve stem for these rims so I can use the tires like they were designed? I
just put the new tires on with tubes for now. Thanks..Mike
 
P

Peter TøNnesen

Guest
"T_Blood" <[email protected]> skrev i en meddelelse
news:[email protected]...
> Quick Question....is it normal for bike manufacturers to put tubes in UST tire sets? I have a
> fairly new bike that I have never had the tires off of before. I wasn't pleased with the stock
> tires so I bought a new set of UST'S. Well....today while replacing them I took the stock UST
> tires off
and
> they had tubes in them! Is this normal practice? My set-up is a 2002 Giant ACDS 2 with Michelin
> UST DH comps with Rigida UST rims. I thought maybe at first one of the two components weren't UST
> but I checked and the tires
have
> the bead as well as a place for the bead on the rim.

Sounds pretty stupid and no, its NOT normal :) I dont see the idea in putting tubes in UST
tires. The UST tires are heavy enough as they are, so putting in tubes only makes them heavier,
makes no sense.

Maybe the Rigida rim and the Michelin tire didnt do well together? It might lose air? And an easy
solution is to put in a tube :)

Actually i didnt know that Rigida made UST rims? I only thought it was Mavic and Bontrager?

> Does anyone know where I may purchase a valve stem for these rims so I can use the tires like
> they were designed? I just put the new tires on
with
> tubes for now. Thanks..Mike

LBS? Maybe Bontrager or Mavic valves will work? My Crossmax doesnt look that special :)

Peet
 
T

T_blood

Guest
"> Actually i didnt know that Rigida made UST rims? I only thought it was Mavic
> and Bontrager?

Yeah..my new ust tires even state that they are compatible with Mavic and Rigida UST rims.
 
C

Chris

Guest
"T_Blood" <[email protected]> wrote in message news:[email protected]...
> Quick Question....is it normal for bike manufacturers to put tubes in UST tire sets? I have a
> fairly new bike that I have never had the tires off of before. I wasn't pleased with the stock
> tires so I bought a new set of UST'S. Well....today while replacing them I took the stock UST
> tires off
and
> they had tubes in them! Is this normal practice? My set-up is a 2002 Giant ACDS 2 with Michelin
> UST DH comps with Rigida UST rims. I thought maybe at first one of the two components weren't UST
> but I checked and the tires
have
> the bead as well as a place for the bead on the rim. Does anyone know where I may purchase a valve
> stem for these rims so I can use the tires like they were designed? I just put the new tires on
with
> tubes for now. Thanks..Mike
>

The removable valve stems for tubless use should have been included with your bike, if the original
wheelset was tubeless. Go back to the LBS and tell them you want your stems.

I see quite a few tubeless bikes ship with tubes...Gary Fisher bikes do that a lot, and I would
assume Trek also. It's pretty freaking stupid - but you'd be surprised how little some mechanics
know about tubeless technology. Also, it makes for a poor display bike when you have to pump the
tires every day so it doesn't look like it has two punctured tubes. In the end, it's easier for bike
manufacturers to ship UST bikes with tubes. I didn't say it was right, mind you, just easier.

Chris (CANNOT get his new set of Serac XC USTs to mount...after a week of trying. Maybe tubeless
does suck)
 
T

T_blood

Guest
> The removable valve stems for tubless use should have been included with your bike, if the
> original wheelset was tubeless. Go back to the LBS and tell them you want your stems.

well..bought the bike online so that might prove to be difficult....know of any web based store
selling them?

I didn't say it
> was right, mind you, just easier.
>
> Chris (CANNOT get his new set of Serac XC USTs to mount...after a week of
trying.
> Maybe tubeless does suck)

I have a lot of experience mounting auto tires and when a bead would not seal then I would pound the
side wall with a big hammer right above the leaking bead, test it in water and normally it worked. I
don't see why this technique would not do the same on UST's (mind you..using a small ball peen
hammer and taking great caution not to hit the rim!!). Mike
 
B

B A R R Y B U R

Guest
On Sat, 07 Jun 2003 03:53:51 GMT, "Chris" <[email protected]> wrote:

>
>Also, it makes for a poor display bike when you have to pump the tires every day so it doesn't look
>like it has two punctured tubes.

None of the UST's in our shop lose air that fast. They don't actually "show" air loss for 3 weeks or
more. My own Crossmax XL's don't lose air any faster than my tuded bikes.

If USTs are losing air daily, it's time to dispmount the tire, clean the beads, and remount, using a
bit of water on the beads.

Barry
 
C

Chris Phillipo

Guest
In article <[email protected]>, [email protected] online.de says...
> Quick Question....is it normal for bike manufacturers to put tubes in UST tire sets? I have a
> fairly new bike that I have never had the tires off of before. I wasn't pleased with the stock
> tires so I bought a new set of UST'S. Well....today while replacing them I took the stock UST
> tires off and they had tubes in them! Is this normal practice? My set-up is a 2002 Giant ACDS 2
> with Michelin UST DH comps with Rigida UST rims. I thought maybe at first one of the two
> components weren't UST but I checked and the tires have the bead as well as a place for the bead
> on the rim. Does anyone know where I may purchase a valve stem for these rims so I can use the
> tires like they were designed? I just put the new tires on with tubes for now. Thanks..Mike

In shipping the tires deflate and the bead would be broken so maybe they do this so the bike shop
doesn't have to reinstall them. It doesn't seem likely a bike company would spend $1.50 more than
they have too though.
--
_________________________
Chris Phillipo - Cape Breton, Nova Scotia http://www.ramsays-online.com
 
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Chris Phillipo

Guest
In article <[email protected]>, B a r r y B u r k e J r . <n/[email protected]> says...
> On Sat, 07 Jun 2003 03:53:51 GMT, "Chris" <[email protected]> wrote:
>
> >
> >Also, it makes for a poor display bike when you have to pump the tires every day so it doesn't
> >look like it has two punctured tubes.
>
> None of the UST's in our shop lose air that fast. They don't actually "show" air loss for 3 weeks
> or more. My own Crossmax XL's don't lose air any faster than my tuded bikes.
>
> If USTs are losing air daily, it's time to dispmount the tire, clean the beads, and remount, using
> a bit of water on the beads.
>
> Barry
>

Just what a shop mechanic wants to do on 150 new bikes every March. Maybe putting tubes in there
from the factory is a good idea.
--
_________________________
Chris Phillipo - Cape Breton, Nova Scotia http://www.ramsays-online.com
 
S

Sorni

Guest
"B a r r y B u r k e J r ." <n/[email protected]> wrote in message
news:[email protected]...
> On Sat, 07 Jun 2003 03:53:51 GMT, "Chris"

> My own Crossmax XL's don't lose air any faster than my tuded bikes.

What, your bikes think they're better than ours?!?

Bill "beating Baker to it just feels right" S.
 
C

Chris

Guest
"T_Blood" <[email protected]> wrote in message news:[email protected]...
>
> > The removable valve stems for tubless use should have been included with your bike, if the
> > original wheelset was tubeless. Go back to the LBS
and
> > tell them you want your stems.
>
> well..bought the bike online so that might prove to be difficult....know
of
> any web based store selling them?

E-mail the web retailer, then. Better yet, call customer service. They owe you the valve stems.
Failing that, e-mail your rim manufacturer and tell them you need a replacement set (mention how
much you love the rim, even if you don't). Don't tell them you never had a set, say you need
another. Ask for a catalog, saying you're looking to pick up a set for another bike, even if you're
not. Include your address - obstensibly for the catalog, but hopefully they will send you the stems
too. If not, they will at least tell you where to get them.

>
> I didn't say it
> > was right, mind you, just easier.
> >
> > Chris (CANNOT get his new set of Serac XC USTs to mount...after a week of
> trying.
> > Maybe tubeless does suck)
>
> I have a lot of experience mounting auto tires and when a bead would not seal then I would pound
> the side wall with a big hammer right above the leaking bead, test it in water and normally it
> worked. I don't see why
this
> technique would not do the same on UST's (mind you..using a small ball
peen
> hammer and taking great caution not to hit the rim!!). Mike

It's not a matter of seating the bead - I find USTs to do that almost automatically - it's just a
matter of getting the tire onto the rim. I think the tire may be undersized just enough to keep it
from going over. I took it into the shop where I work yesterday, and all three of us (the mechanics)
couldn't get the tire onto the rim, even using 4 hands (and 4 QuikStiks) at once. USTs have always
been difficult to pull over the rim, but never impossible. It gives me a headache.

Chris
 
C

Chris Phillipo

Guest
> It's not a matter of seating the bead - I find USTs to do that almost automatically - it's just a
> matter of getting the tire onto the rim. I think the tire may be undersized just enough to keep it
> from going over. I took it into the shop where I work yesterday, and all three of us (the
> mechanics) couldn't get the tire onto the rim, even using 4 hands (and 4 QuikStiks) at once. USTs
> have always been difficult to pull over the rim, but never impossible. It gives me a headache.
>
> Chris
>

There's a reason you use a big ass machine to put most other tubeless tires on rims. I genuinely can
not beleive Park in't marketing a $6500 tubeless tire installation machine yet. Perhaps that's more
proof that UST hasn't really taken off they way the partners had hoped.
--
_________________________
Chris Phillipo - Cape Breton, Nova Scotia http://www.ramsays-online.com
 
E

El Barista

Guest
Chris wrote:

> It's not a matter of seating the bead - I find USTs to do that almost automatically - it's just a
> matter of getting the tire onto the rim. I think the tire may be undersized just enough to keep it
> from going over.
I
> took it into the shop where I work yesterday, and all three of us (the mechanics) couldn't get the
> tire onto the rim, even using 4 hands (and 4 QuikStiks) at once. USTs have always been difficult
> to pull over the rim, but never impossible. It gives me a headache.

Are you finishing at the valve side? My tubeless experience is limited to Rolf Dolomites and Mavic
Crossrocs, both with Continental USTs and Michelin USTs. When I first switched I was starting at the
valve like tubed tires. Once I began FINISHING at the valve I was able to get them mounted by easily
popping the bead over. Make sure you get the tire down in the deepest part of the rim to give as
much slack as possible.

-will
 
C

crazy6r54

Guest
I remember from my motorcycle years the 70s. Putting tubes in tubeless tires mag wheels so you just
pull out the tube and patch it or replace it with a new tube. It saved time and labor due to pluging
repair kit. And if your rim wouldn't hold air or a slow leak the tube work wonders.

Fire up MTB 03
 
B

B A R R Y B U R

Guest
On Sat, 07 Jun 2003 14:29:31 GMT, "Sorni" <[email protected]> wrote:

>"B a r r y B u r k e J r ." <n/[email protected]> wrote in message
>news:[email protected]...
>> On Sat, 07 Jun 2003 03:53:51 GMT, "Chris"
>
>> My own Crossmax XL's don't lose air any faster than my tuded bikes.
>
>What, your bikes think they're better than ours?!?
>
>Bill "beating Baker to it just feels right" S.
>

Yep! <G>

My bikes have "tudes". The Crossmax XL's are "tudeless" and get along better on group rides.

Barry
 
B

B A R R Y B U R

Guest
On Sat, 7 Jun 2003 10:19:23 -0300, Chris Phillipo <[email protected]> wrote:

>>
>> If USTs are losing air daily, it's time to dispmount the tire, clean the beads, and remount,
>> using a bit of water on the beads.
>>
>> Barry
>>
>
>Just what a shop mechanic wants to do on 150 new bikes every March. Maybe putting tubes in there
>from the factory is a good idea.

Chris, We have to do this on maybe 5% (5 of every 100) tubeless wheels. Our bikes that ship with
tubeless tires are not sitting on the sales floor, or in the warehouse, with flat tires.

I really don't see what the big deal is.

Barry
 
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