whats the rubber tube for?
- Thread starter levemircento
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whats the rubber tube for?
rubber tube is for a few different things.
1) sliding over the schaeder tubes if they crack/tear (often occurs with cheap ones, or low pressures for DH etc).
2) as dave says, for the old school type valves (road racing bikes sometime use them as they are dinky, defo smaller than a presta.
tubeless tyres have been around a while (2002 mainstream I think). but there are benefits and erm, not so beneficial things.
can run lower tyre pressures as tube pinch don't occur
for some applications lighter in weight at the outer edge of the wheel (loosing 200g at tyre diameter has a similar effect to loosing 1-2kg in total build weight, inertia).
cost more
get a puncture, with most tubeless set you'll be there for an hour swearing and cursing as they seat VERY tightly, in the shop I used to work in we'd OFTEN get people in that just COULD NOT remove the tubeless tyre from the tubeless rim!!
1) sliding over the schaeder tubes if they crack/tear (often occurs with cheap ones, or low pressures for DH etc).
2) as dave says, for the old school type valves (road racing bikes sometime use them as they are dinky, defo smaller than a presta.
tubeless tyres have been around a while (2002 mainstream I think). but there are benefits and erm, not so beneficial things.
can run lower tyre pressures as tube pinch don't occur
for some applications lighter in weight at the outer edge of the wheel (loosing 200g at tyre diameter has a similar effect to loosing 1-2kg in total build weight, inertia).
cost more
get a puncture, with most tubeless set you'll be there for an hour swearing and cursing as they seat VERY tightly, in the shop I used to work in we'd OFTEN get people in that just COULD NOT remove the tubeless tyre from the tubeless rim!!
rubber tube is for a few different things.
1) sliding over the schaeder tubes if they crack/tear (often occurs with cheap ones, or low pressures for DH etc).
2) as dave says, for the old school type valves (road racing bikes sometime use them as they are dinky, defo smaller than a presta.
tubeless tyres have been around a while (2002 mainstream I think). but there are benefits and erm, not so beneficial things.
can run lower tyre pressures as tube pinch don't occur
for some applications lighter in weight at the outer edge of the wheel (loosing 200g at tyre diameter has a similar effect to loosing 1-2kg in total build weight, inertia).
cost more
get a puncture, with most tubeless set you'll be there for an hour swearing and cursing as they seat VERY tightly, in the shop I used to work in we'd OFTEN get people in that just COULD NOT remove the tubeless tyre from the tubeless rim!!
Daves right the tube is for a woods valve
Im running tubeless on my Mountain bike
been using them for over a year and not had one puncture (thats tempted feat) Ive found the tires very easy to change (im using Mavic 819's on Maxxis/ Conti tires) and once you have the knack its easy to fit and remove tires without any tools you put the bead into the rims well to make more room to fit them (then again a mate has DEEMAX DH wheels and they are as tight as a ducks arris.....To prevent punctures i run a sealent called stans no tubes its a soultion containing whats basicly thin copydex glue, corn flour and ethylene glycol
Its not just the ability to run lower pressures (they can Unseat off the rim if run too low) but as there is no inner tube the tire is more supple.
a new inner tube only casts 4 quid or so i paid 8 for a self sealing one.
also saves time to ( my patches always get stuck to the tire)
Still not put inner tube on tire it in a to do list
Also from the title i thought it was going to be about rubbers
Feed fish (bit late for that one)
put tank in loft
remove draws from room and burn
get a new toy for PC
learn to play guitar again
tidy room
tidy cubored to put clothes in
put scealetrix up in loft after playing with it
put rear tire on bike
put handle on cubored door
replace bathroom door (knee went thought it)
i think that's all i have to do at moment
also saves time to ( my patches always get stuck to the tire)
Still not put inner tube on tire it in a to do list
Also from the title i thought it was going to be about rubbers
Feed fish (bit late for that one)
put tank in loft
remove draws from room and burn
get a new toy for PC
learn to play guitar again
tidy room
tidy cubored to put clothes in
put scealetrix up in loft after playing with it
put rear tire on bike
put handle on cubored door
replace bathroom door (knee went thought it)
i think that's all i have to do at moment
Most self sealing tubes IME are absolute $h!t@ your better off spending the money on a better quality tire and tube...
Tried them all in the past and the slime "liners" which dont work and are a pain to keep centered when you refit the tire......
I tried it a long time ago and found that it didnt seal even small holes that well as a result they constantly leaked air (slowly) and if you got a big hole it was a problem to patch as the slime keeps seeping out preventing the patch from sticking
my mate had a blow out on his mountain bike and was covered in green slime (how we laughed at him) especially as i told him it (slime) was no good before he bought it
you might as well carry a spare tube and pump IMO
Tried them all in the past and the slime "liners" which dont work and are a pain to keep centered when you refit the tire......
I tried it a long time ago and found that it didnt seal even small holes that well as a result they constantly leaked air (slowly) and if you got a big hole it was a problem to patch as the slime keeps seeping out preventing the patch from sticking
my mate had a blow out on his mountain bike and was covered in green slime (how we laughed at him) especially as i told him it (slime) was no good before he bought it
you might as well carry a spare tube and pump IMO
I found it useful when i rode over some welding wire double puncture thought side wall
went to petrol station removed wire added air
able to get home easy
had to replace inner tube 2 months later when it had a slow puncture
went to petrol station removed wire added air
able to get home easy
had to replace inner tube 2 months later when it had a slow puncture
You was lucky it normally only works on the center of the tread due to the centrifugal force holding the slime there then again if you used a compressor it probably forced enough slime into the hole to plug it..
look at the Schwalbe range they do a section of tires with an anti puncture belt to protect the inner tube they arnt a very supple tire but fine for commuting
like this
http://www.dahon.com/components/premium/racer.htm
look at the Schwalbe range they do a section of tires with an anti puncture belt to protect the inner tube they arnt a very supple tire but fine for commuting
like this
http://www.dahon.com/components/premium/racer.htm
Valve rubber has been in the repair kits since Adam were a lad.
I used to buy a few feet of it at a time to use when I went fishing (to hold the float to the line) and it made fantastic catapults.
Oh to be a kid nowadays where you can buy silicon for use on the end of fishing poles. That stuff stretches forever & would make a fantastic catapult elastic.
The bit of metal is not only used to roughen up the rubber tube prior to applying the patch, it can also be used to shave some of the chalk - to dust the excess glue around the patch.
I used to buy a few feet of it at a time to use when I went fishing (to hold the float to the line) and it made fantastic catapults.
Oh to be a kid nowadays where you can buy silicon for use on the end of fishing poles. That stuff stretches forever & would make a fantastic catapult elastic.
The bit of metal is not only used to roughen up the rubber tube prior to applying the patch, it can also be used to shave some of the chalk - to dust the excess glue around the patch.
When I used to ride, I ran a 26x3.0 Nokian Gazzaloddi on the front and a 24x2.6 Gazzaloddi JNR on the back. I ran them with Halo Combat rims (built onto Hope Big'un hubs with straight DT straight gauge spokes ) and Maxxis DH tubes. I ran my front tyre at 11 psi and my rear at 8 psi. On the road, it was 26 psi and 30 psi on the back. I never had one puncture on that set up. If you spend a bit of money on a decent set up, you should have minimum problems.
) and Maxxis DH tubes. I ran my front tyre at 11 psi and my rear at 8 psi. On the road, it was 26 psi and 30 psi on the back. I never had one puncture on that set up. If you spend a bit of money on a decent set up, you should have minimum problems.
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gazza's are LETHAL on tarmac in any size or setup.
hence why i Have a funked knee cap, bloody nasty tyres.
but in THICK gloopy mud they're OK.
although roots where never good with them, as I found em just too hard.
maxxis uber tackies, and in dry some larger hi rollers are the way forward.
infact 2.5 high rollers all year round is pretty good by me
hence why i Have a funked knee cap, bloody nasty tyres.
but in THICK gloopy mud they're OK.
although roots where never good with them, as I found em just too hard.
maxxis uber tackies, and in dry some larger hi rollers are the way forward.
infact 2.5 high rollers all year round is pretty good by me
some larger hi rollers are the way forward.
infact 2.5 high rollers all year round is pretty good by me
im running the LUST (light weight ultimate Sidewall Technology ((tubeless))) 2.35 Highroller and they are a cracking bit of rubber..
if you think Gazza's are lethal try anything by Tioga
i dont know what tires are on my bike
i havent had it out of the shed in months
i havent had it out of the shed in months
Tut
cos most bikes have spokes. the air would leak out of the holes where the spokes go into the rim.
you can get tubes for cars.
My bike has spokes and is tubeless
the rim is air tight with a double wall and the spoke nipple is fitted into a threaded holder which is screwed into the rim from the outside.....
like this
http://www.chainreactioncycles.com/Models.aspx?ModelID=3444
you can also get kits to make your normal rims air tights
http://www.notubes.com/tubeless_system.php?cPath=21_58
wow
I didn't know that.
In the old days (I'm an old git btw) the only reason you had a tube in a wheel is if it was a spoked wheel, well, you could put a tube in a tubeless rim but you'd be risking pinching the tube. I'm talking about motorbikes here.
So now you can get tubeless, spoked wheels??? well I never. What's the world coming to?
Edit;
hang on a sec, you can't seal a normal spoked wheel cos the rim wouldn't seal even if you sealed the spoke holes. Are you sure those conversion kits work?
I didn't know that.
In the old days (I'm an old git btw) the only reason you had a tube in a wheel is if it was a spoked wheel, well, you could put a tube in a tubeless rim but you'd be risking pinching the tube. I'm talking about motorbikes here.
So now you can get tubeless, spoked wheels??? well I never. What's the world coming to?
Edit;
hang on a sec, you can't seal a normal spoked wheel cos the rim wouldn't seal even if you sealed the spoke holes. Are you sure those conversion kits work?
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yes the strip of rubber (basically an inner tube cut open and spread out) sits into the bead hook so when you seat and inflate a tubeless tire it expands into the bead hook and nips into the strip forming an air tight seal..
theres a video here on how it works....
http://www.notubes.com/movieinstall.php
theres a video here on how it works....
http://www.notubes.com/movieinstall.php
The sealant works well too. even in an old wheel barrow...
