Whats the point of ...
 

[Closed] Whats the point of tubeless for XC?

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Been having a bit of a discussion about tubeless on another forum, and as usual everyone whos got it raves about it. However, the conversation goes like this....

Q: What about changing tyres?
A: Ah yes well thats a bit of faff so I have my spare tyres on spare wheels so I change wheels not tyres..

Q: So whats the benefit of tubeless?
A: Well I can run lower pressures and get more grip, and theres less rolling resistance.

Q: But with less pressure don't you run the risk of burping and surely less pressure means higher rolling resistance?
A: Well I get less punctures....

Q: But surely you can get less punctures with slime in a tube and then you can change tyres really easily.
A: Ah but thats heavier ......

Q: So what do you do if you rip a tyre....
A: Easy I slip a tube in as a get me home......

Q: So thats the same weight as a tube with slime then?
etc etc etc

In short I can see tubeless being beneficial on rocky gnarlyness and for downwhilling, but East Anglian XC? Is it really a benefit or is it an embuggerance?

[pushes chair back and awaits the fire storm]


 
Posted : 23/05/2012 12:34 pm
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skinny little fast rolling tyres that actually grip like fat tyres.


 
Posted : 23/05/2012 12:36 pm
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Don't use it of you don't want to....


 
Posted : 23/05/2012 12:37 pm
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rides nice but i found it a faff. might try it again soon...


 
Posted : 23/05/2012 12:37 pm
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Feels nicer.


 
Posted : 23/05/2012 12:38 pm
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teh main advantage IMO is puncture / thorn resistance. If you ride where there is hawthorn hedging then this would be a great advantage.

otherwise I think the advantage is minimal especially if you like to change tyres a lot


 
Posted : 23/05/2012 12:38 pm
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Yeah, but skinny fast rolling tyres with more pressure in will roll faster surely, and I don't need fat tyre type grip here.


 
Posted : 23/05/2012 12:39 pm
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You can't compare the lack of punctures you get with tubeless to slime in an inner tube. Come on now.
I've gone 3,4 years between punctures on tubeless at some points in time. What does a slime inner tube look like after 4 years use?


 
Posted : 23/05/2012 12:43 pm
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Yeah, but skinny fast rolling tyres with more pressure in will roll faster surely

Nope


 
Posted : 23/05/2012 12:44 pm
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as with most of these (see disc brake troll earlier) I can't really see the point of XC or the point in mountain biking in East Angliar


 
Posted : 23/05/2012 12:46 pm
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what's the point of east angular?


 
Posted : 23/05/2012 12:48 pm
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😆


 
Posted : 23/05/2012 12:49 pm
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skinny fast rolling tyres with more pressure in will roll faster surely

that's what I thought, but the same tyres running tubeless roll as fast, but can handle roots, and overzealous entry speed to corners.

just do it, it's dead easy.


 
Posted : 23/05/2012 12:49 pm
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surely less pressure means higher rolling resistance?

Rolling resistance is a function of the tread deforming (hence more RR for softer compounds) and the tyre carcass deforming (hence more RR for softer pressures) and the inner tube deforming inside it (again, hence more RR for softer pressures). I think also the friction between tube and tyre makes a difference but not sure how.

Either way, for the same bump at the same speed at the same tyre pressure, a tyre without a tube will require less work to deform, hence less rolling resistance.

The above was the only reason I liked tubeless. I didn't really suffer any less punctures and never really perfected a faff free method of fitting/fixing tyres, so gave it up in the end.


 
Posted : 23/05/2012 12:50 pm
 D0NK
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Q: So what do you do if you rip a tyre....
A: Easy I slip a tube in as a get me home......

Q: So thats the same weight as a tube with slime then?

unless you are a racer/idiot you always carry a spare inner tube so you can ignore that weight. So lighter that slime tube, can be lighter than tubes depending on hardware, occasionally you'll get a rip but then you are just back to the weight of normal tubes. Running light(ish) mud-xs for over a year and only got 1 rip, no other flats.

If you are a tyre swapper or never puncture probably not worth the hassle


 
Posted : 23/05/2012 12:52 pm
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surely less pressure means higher rolling resistance?

On a track bike or on a smooth road, yes. Off-road, not worth worrying about. The less you bounce around over bumps (and the greater the grip / control) the less momentum is wasted and that more than cancels the small amount of energy lost in the flexing of the tyre as it rotates.

Nothing would make me go back to tubes on an MTB and I ride southern singletracks most of the time + swap tyres depending on general conditions and where I'm riding. I love teh lower pressures and lack of flats, plus the fact the tyres tend to be tougher overall. I've had 6 punctures in 5 years now - all were small cuts that would've been much worse on a thinner carcass non-tubeless tyre. All but one were repaired with a bit of sealant (neat latex in a small squirt-bottle), a mini-pump and 5 mins trailside.
I'd not recommend them to the non-mechanically-minded though. There's a bit of faff in matching tyres to rims (or tape depth) for an easy-seated combo, but that's less faff than I have with plenty of other parts that seem to be well accepted despite high cost and regular hopelessness of a lot of them.


 
Posted : 23/05/2012 12:56 pm
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Where I ride there are loads of thorns when the farmers cut the hedgerows. On one ride a mate had 3 punctures and I had none due to the tubeless set up. As more thorns worked through the casing he had another 4 punctures during the next couple of rides. He went tubeless and hasn't had another.

When changing tyres I've counted dozens of thorns inside my tyres and haven't noticed any of them.

On most local xc rides round here with mates, one of them will have a puncture if they're running tubes. I've only had one puncture since swapping to tubeless and that was some barbed wire ripping the sidewall out of the tyre and would have punctured a tube anyway.


 
Posted : 23/05/2012 1:00 pm
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Q: What about changing tyres?
A: I find getting tyres on/off rims the faff part so no difference between tubeless and tubed. I have a stans syringe so just pop out the valve core, suck out the fluid, quick squizz with soapy water and ready for new tyre.

Q: So whats the benefit of tubeless?
A: Definitely more grip and run slightly lower pressure. Only ever had one puncture that I noticed (tyre full of thorns by end of last autumn mind) and that sealed a pretty big hole made by a nail

Q: But with less pressure don't you run the risk of burping and surely less pressure means higher rolling resistance?
A: Never had a tyre burp (run about 30psi)and rolling resistance off road has been shown to increase with higher pressures (opposite of on-road)

Q: So what do you do if you rip a tyre....
A: same answer for ripping a tyre with a tube in it - insert new tube to get home or if it's ripped too badly walk...!


 
Posted : 23/05/2012 1:02 pm
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I run tubeless on my lightweight racing wheels and tubes on my chunky trail wheels, btw.


 
Posted : 23/05/2012 1:18 pm
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Whats the point of XC?

I'm joking!!!!


 
Posted : 23/05/2012 1:23 pm
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I wasn't!! Seems like an excuse to wind the knicker elastic up to 11


 
Posted : 23/05/2012 1:29 pm
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You can't compare the lack of punctures you get with tubeless to slime in an inner tube. Come on now.
I've gone 3,4 years between punctures on tubeless at some points in time. What does a slime inner tube look like after 4 years use?

Looks like something cheap and easy to replace that doesn't mean loads of wheels in the garage to facilitate tyre changes and which works about as well as tubeless in preventing puncture faffage and weighs approximately the same, but if you want to be picky lets call it a tube filled with Stans for the sake of argument.


 
Posted : 23/05/2012 1:33 pm
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Personally, it was always tubeless when racing xc, because its lighter/faster/grippyer/no snake bites. But always had a tube, gas can and tire boot,taped to the stem just in case of a torn side wall...
Now a try to race down hill and use tubes because they came with the wheels and are super thick....


 
Posted : 23/05/2012 1:40 pm
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but if you want to be picky lets call it a tube filled with Stans for the sake of argument.

I've tried that actually. Tubes with sealant in are less puncture resistant than tubeless - especially (obviously) for pinch flats.

Tubeless can be the holy grail for some, not for other - it really depends on what/how you ride. If you never get punctures with tubes, I wouldn't bother. If you do (particularly pinch flats as were the bane of my life), then tubeless is well worth trying.

FWIW, I don't really swap tyres. njee who races and does regularly change them says that he's never had an issue changing. IME, using tubeless specific wheels (eg not ghetto, ideally not rim strips) makes this way easier.


 
Posted : 23/05/2012 1:41 pm
 Nick
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Clearly given the first post, responding to this is a waste of time, berm bandit has already made up his mind and isn't interested in changing it.

Therefore all I will add is that I ride XC, I use tubless, it works for me, I like it.


 
Posted : 23/05/2012 1:51 pm
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I'll bite.

When I've had slime tubes, the bike felt like it was dead, didn't get that with tubeless, if anything there was a bit more of spring in its step.

You don't need as much latex as people put in.

Around here, with thorns, little flints etc I can go a year without touching anything on tubeless, whilst my other mtb and road bike I'd expect 20 odd punctures between them. 7 in one memorable road ride once.

When you hit something nasty enough to rip the tyre, it's pretty academic.


 
Posted : 23/05/2012 2:01 pm
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Surely the point is it's an advantage in any way you want it to be?

Lower pressure for the same rolling resistance

More grip for the same pressure (or more pressure for the same grip)

etc etc

less punctures too

So so yes you can cancel out the advantages, but that just creates another advantage elswhere.

That and it's definately lighter. My tape and valve came to 40g, 60g of stans fluid, normal (maxxis SPC and specialized normal and 2bliss) tyres. So that's 100g saved form the wheels over normal 150g tubes.

And changing tyres is easy, either pour away the sealent (wastes about a pound per wheel) or pour it into the new tyre. Either that or stop being a fanny and just ride on the same tyres.


 
Posted : 23/05/2012 2:02 pm
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Tubeless is one of those things. It seems like an interminable faff with little point or benefit. Then you try it and its like "ahh now I get it"

From the first turn of the wheels you can feel the difference


 
Posted : 23/05/2012 2:15 pm
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Clearly given the first post, responding to this is a waste of time, berm bandit has already made up his mind and isn't interested in changing it.

I think you might need to get those GCSE English books out again Nick, a sentence that ends in one of these "?" is a question, not a statement.

I really am interested, because as you can see from above the responses are far from consistent as to what the advantages are. In fact I find that almost as many people reckon its not worth it as reckon it is. Generally with new concepts the benefits are pretty obvious, like external BB's and disc brakes and so forth. Tubeless seems less so, and so far no one has been able with any degree of certainty to turn to any aspect and say "if you do this you will without fear of contradiction gain X". Generally its very anecdotal and almost always contradicted by another tubeless user as soon as its said.

I well remember discs coming in, and it was a no brainer. Better more efficent braking, still pretty effective in crappy conditions and no rims splitting after being worn to nothing by grit.

A good example of what I'm saying being these two statements

it's definately lighter. My tape and valve came to 40g, 60g of stans fluid, normal (maxxis SPC and specialized normal and 2bliss) tyres. So that's 100g saved form the wheels over normal 150g tubes.

unless you are a racer/idiot you always carry a spare inner tube so you can ignore that weight

&
But always had a tube, gas can and tire boot,taped to the stem just in case

So actually far from being a weight benefit as claimed by thisisnota spoon, its would appear by his own numbers to be a 50g penalty when the idiots tube is taken into account, and I hasten to add that peretty much everyone I speak to admits to an idiots tube, not just the two examples given here.

See what I mean?


 
Posted : 23/05/2012 2:23 pm
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Looks like something cheap and easy to replace that doesn't mean loads of wheels in the garage to facilitate tyre changes and which works about as well as tubeless in preventing puncture

Nope, slime tubes are pants compared to tubeless when it come to punctures


 
Posted : 23/05/2012 2:27 pm
 D0NK
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See what I mean?
no, presumably you use tubes at the moment, do you have a spare tube in your bag? I'm presuming yes, most tubeless riders also carry a spare tube. both 'systems' have a spare tube so you can ignore that weight as it is the same for either.

Dunno maybe you use tubes but only carry a puncture repair kit - brave, what if you get a monster snakebite/split too big to patch (has happened to me) or rip the valve (yep had that too)?

I'm not saying tubeless is 100% what everyone needs I use tubeless on the bikes/wheels I was getting loads of pinch punctures on and on my SS where I realised I could lose some weight. Tubes on the rest.


 
Posted : 23/05/2012 2:30 pm
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So actually far from being a weight benefit as claimed by thisisnota spoon, its would appear by his own numbers to be a 50g penalty when the idiots tube is taken into account, and I hasten to add that peretty much everyone I speak to admits to an idiots tube, not just the two examples given here.

Nope, you're not reading it right, they are saying everyone carries a tube, whether you run tubes or not. So a spare tube is the same for everyone


 
Posted : 23/05/2012 2:33 pm
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Generally with new concepts the benefits are pretty obvious, like external BB's and disc brakes and so forth. Tubeless seems less so, and so far no one has been able with any degree of certainty to turn to any aspect and say "if you do this you will without fear of contradiction gain X". Generally its very anecdotal and almost always contradicted by another tubeless user as soon as its said.

Not really, everyone on the thread has mentioned greater puncture resistance. And I'll add my name to that list.

Rolling resistance, feel - these are all a bit more subjective or hard to measure. You can definitely run lower pressures with less risk of pinch flatting (puncturing again!) which does improve traction, although as with rolling resistance and feel the improvement is hard to quantify exactly.


 
Posted : 23/05/2012 2:36 pm
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And changing tyres is easy, either pour away the sealent (wastes about a pound per wheel) or pour it into the new tyre. Either that or stop being a fanny and just ride on the same tyres.

This. Since going tubeless I have been less inclined to faff around changing tyres, which has made little or no difference to the majority of my riding (bar a few particularly muddy weeks over winter), thus saving me considerable time in not having to read "what tyres" threads.


 
Posted : 23/05/2012 2:38 pm
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i was a little dubious about tubeless to until the other day when i changed my rear tubless tyre, it must have had at least 8 or 9 punctures (you can tell where the punctures were due to the sealant hardening) but i didnt even notice, in fact i didnt even have to put any air in the tyre all winter as the punctures sealed so quickly. tubeless all the way for me. other than that you dont have to carry tubes when riding therefore saving weight on a ride- i just have a co2 canister nothing more....


 
Posted : 23/05/2012 2:39 pm
 Nick
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Your opening post is obviously rhetorical, including the ?

You misread/misunderstood the point about idiots, that is everyone, regardless of whether they run tubeless or not carries a tube, unless they are an idiot.


 
Posted : 23/05/2012 2:40 pm
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I struggle with long sentences
I get a bout two punctures a year so it has no appeal to me

Each to their own though I dont have any real opinion on the issue


 
Posted : 23/05/2012 2:40 pm
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if you do this you will without fear of contradiction gain X

Tubeless rolls better, grips better and feels better than tyres with tubes.

If these things appeal to you then go tubeless.

Don't go tubeless to save weight.

UST rims and tyres are the easiest way to go tubeless but other systems have lower weight / expense.

I've not had issues with punctures either but then this was never a big problem with tubes either.

Carrying a tube is just sensible, anything that makes a repair easier when you are on the trail is worth the effort. A puncture outfit is lighter than a tube but most people running tubes carry a spare tub because its easier than patching a tyre at the side of the trail. You carry one for the same reason when you have tubeless.

As this is STW i'm full prepared to be contradicted but in STW tradition I also know I am right 😉


 
Posted : 23/05/2012 2:41 pm
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I swapped over from tubes because I fancied the idea of no more snakebites.

Not had one since I did, a result!


 
Posted : 23/05/2012 2:42 pm
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Snakebites are not a major issue in rural East Anglia, which takes me back to the original post, like I said I get tubeless for rock where you realy do need a tyre to deform and grip a surface, and under inflation with a tube is a proper hazard, but round here its either Sand or Clay. In the dry its like riding on a dusty road, and in the wet its mud so if the lower pressure thing is right in those conditions, why don't road riders do it??


 
Posted : 23/05/2012 3:05 pm
 D0NK
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you dont have to carry tubes when riding therefore saving weight on a ride- i just have a co2 canister nothing more....
I predict a long walk home looming

Had far far too many punctures in the past, I'm quite belt and braces about this sort of thing, carry a proper pump, a patch kit, a tubeless repair kit, duck tape (as a tyre boot) and a spare tube (2 for a long ride).

BB we've told you what we think is good about it, you don't beleive/accept them so don't bother. No one is trying to twist your arm.


 
Posted : 23/05/2012 3:11 pm
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So actually far from being a weight benefit as claimed by thisisnota spoon, its would appear by his own numbers to be a 50g penalty when the idiots tube is taken into account, and I hasten to add that peretty much everyone I speak to admits to an idiots tube, not just the two examples given here.

Errrr, no the wheel is 50g lighter tubeless. The tubes in my backpack would be there whether I had tubeless or not. You'd be unpopular on agroup ride if you punctured with no spare and faffed for 10 minutes patching a tube. The only difference is I've not had to use the spare tube in 5 years of tubeless 🙂

As for the rest of the advantages.

Grip, rolling resistance, comfort, are all affected by pressure. Tubeless makes them all a little better, and you've got the ability to run lower pressures which maximises grip and comfort even further, whilst rolling resistance is still comparable to a tubed tyre. Or you could run the same high pressure as a tube tyre and still have more grip and less rolling resistance. Or even higher pressure again for the same grip as a tubed tyre but even less rolling resistance.


 
Posted : 23/05/2012 3:17 pm
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in the wet its mud so if the lower pressure thing is right in those conditions, why don't road riders do it??

Why would a road rider ride in mud? CXers do, and ride tubular tyres at lower prssures.


 
Posted : 23/05/2012 3:19 pm
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As TJ said thorns are not really an issue with tubeless, I pulled out numerous when my wall split and had to put in a tube to get home, I'll probably leave the tube in until I want to change tyres. Get the right tyre, wheel and sealant combo and it's pretty hassle free.


 
Posted : 23/05/2012 3:33 pm
 FOG
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I went tubeless 5years ago after a plague of punctures. However I have gone back to tubes on a purely cost and faff basis. I don't have a compressor so every tyre change was a faff. On the last change the valve on the rim strip broke and the other one looked dodgy, quite a big outlay when compared to the odd tube.


 
Posted : 23/05/2012 4:53 pm
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I don't have a compressor so every tyre change was a faff.

Good tyre and rim combos seat with a bit of sealant and a track or hand pump - I've never used a compressor on any of my tyres / wheels? And old valves cut from inner tubes do the job just fine, saves a few £.


 
Posted : 23/05/2012 5:41 pm
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Good tyre and rim combos seat with a bit of sealant and a track or hand pump - I've never used a compressor on any of my tyres / wheels? And old valves cut from inner tubes do the job just fine, saves a few £.

+1

I spend some time figuring out what worked best with new rims, some just needed a layer or two of electrical tape, some took 5 or 6 layers, otheres a stans style rim strip. But all my tyres go on with just a mini pump now if nececary. I guess a compressor would mean I could use less tape/strips which might save 50g in the worst case of using stans strips.


 
Posted : 23/05/2012 5:56 pm
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I resisted for years,but am now a recent convert to tubeless.

Using proper tubless wheels it was a doddle to get the tyres inflated.I can see tyre changes might be messy,but most of the problems associated with tubeless seem to be imagined/preceived by folk who`ve never actually tried it. I can include myself as not being convinced until I tried it

As for weight I was previosly running Schwalbe lightweight tubes which were 120g,and rim strips which were 20g each.Tubeless strips are the same and Im running 60ml (60g) of Stans in each sealant.So as Im running the same tyres as I was with tubes that`s 120g saving by my reckoning.

There was a very noticeable difference in ride feel straight away,with the tubeless set up being much more supple.And that was before I started experimenting with lower pressures.

I`d carry a spare tube regardless of whether I has tubes or not,unlees I was a racer.

This to me is of as much value as the increased puncture protection.


 
Posted : 23/05/2012 5:57 pm
 mboy
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The smug feeling of changing a tyre after 6/12/18 months of use, and finding a number of thorns embedded in it, but it still stayed up all that time, is worth it alone IMO.

That aside, when I first went tubeless I did so because I was always pinch puncturing. If I ran my tyres hard enough not to pinch (about 45psi or so) they didn't grip very well, and if I ran them low enough to get the grip I wanted (about 32-35psi) then I just constantly pinch flatted. Tubeless fixed this for me overnight!

Tubeless isn't for everyone, it's a bit like the flats vs SPD's debate. If you're the kind of person that has a set of different tyres for every day of the week, then probably don't bother. Likewise if you don't think you'd benefit at all from being able to run lower pressures without pinch puncturing. But for lots of us, tubeless is worth a lot more than the slight faff of fitting/sealing a difficult tyre/rim combo once in a while.

Oh, and in 8 (or is it 9?) years of running tubeless exclusively on mountain bikes (except for one ride on a new bike, when guess what, I punctured!) I've not had a puncture or a single burp.


 
Posted : 23/05/2012 6:00 pm
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XT rims and spesh 2bliss work like a dream with track pump, cup of stans, inflate to 60 or until bead pings and deflate to 30 or whatever - done.


 
Posted : 23/05/2012 6:52 pm
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Tubeless... can see the handling benefits in theory but not anything on the puncture front compared with running tubes and a tyre liner.

Tubeless and UST are just more of a marketing thing to con MTBers out of money as per usual


 
Posted : 23/05/2012 9:58 pm
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not anything on the puncture front compared with running tubes and a tyre liner.

How does a tyre liner protect against pinch flats? What if the liner slides round?

IME they make tyre changes far more awkward than tubeless tyres!

Marketing con? You must ride lopsided with that giant chip on your shoulder 🙄


 
Posted : 23/05/2012 10:01 pm
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Low pressure so more grip with no pinch punctures is how it works for me. Total convert.


 
Posted : 23/05/2012 11:25 pm
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The smug feeling of changing a tyre after 6/12/18 months of use, and finding a number of thorns embedded in it, but it still stayed up all that time, is worth it alone IMO.

Need to get out more?


 
Posted : 23/05/2012 11:28 pm
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I have tubeless on one bike and tyre liners on the other...Tubeless was a right bloody faff to get dialled but now I've got the setup sorted it's dead easy to remount tyres and it does ride nicer. I really like it actually, though I live in fear of the old sidewall slice as I'm on Rons...they're great but I will probably go to Snakeskin Ralphs for peace of mind at some point. (when it's too late, probably!)

The tyre liners are good if you want a no fuss basic solution. I have the Panaracer flataways which stick to the inside of the tyre so you can't swap them over (not an issue for me). Adds about 30g per wheel. I reckon good for a 2nd bike / winter bike where you don't want any hassle.

For XC and especially for racing or riding fast, I think you're missing out a bit if you're on tubes. It's just not *quite* as nice.


 
Posted : 23/05/2012 11:33 pm
 grum
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Q: What about changing tyres?
A: Why do you need to change tyres all the time?

Q: So whats the benefit of tubeless?
A: It's better


 
Posted : 23/05/2012 11:40 pm
 mboy
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Tubeless and UST are just more of a marketing thing to con MTBers out of money as per usual

Just like disc brakes right? 😉

There are old guys in my local road club swear by their lugged steel frame bikes, with 8 speed campag setups complete with downtube shifters, 1" threaded headsets etc. And they'd not change if you paid them to...

Doesn't mean they're right though, it's just what they're used to and they get a kind of ironic pleasure out of being retro or stuck in their ways.


 
Posted : 23/05/2012 11:55 pm
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It still amazes me people use these tube thingies


 
Posted : 24/05/2012 12:10 am
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Berm Bandit - Member

So actually far from being a weight benefit as claimed by thisisnota spoon, its would appear by his own numbers to be a 50g penalty when the idiots tube is taken into account,

Ah- are you that feller I met in Wales that had gone out riding with no spare tube and got a flat? If so, I'd like my "idiots tube" back 😉


 
Posted : 24/05/2012 12:34 am
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don't knock it till you've tried it. it's like going commando, for your bike.


 
Posted : 24/05/2012 12:42 am
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njee20 - Member

[i]not anything on the puncture front compared with running tubes and a tyre liner.[/i]

How does a tyre liner protect against pinch flats? What if the liner slides round?

On a tyre sidewall it says inflate to xx psi/bar minimum. I just do that and I don't get pinch flats. Liners don't slide around when tube is inflated.

njee20 - Member

Marketing con? You must ride lopsided with that giant chip on your shoulder

No, because I have a piece of fish to go with it on the other one 😀


 
Posted : 24/05/2012 1:10 am
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Fair enough, because I'm on tubeless I can run far lower than manufacturers specify to get more grip, rather than being governed by the risk of a pinch flat. Prefer to choose my pressures based on conditions and what I like, not what a manufacturer says I need to run YMMV.

The pad wear argument is stupid too, I've trashed disc pads, but you can still stop. When you wear out rim brake pads (which can still happen in 5 miles) you have no power at all, and there's a good likelihood you'll take your rims out in the process!

I also change tyres all the time and it's no more hassle than with tubes. Just need to use tyres that work!


 
Posted : 24/05/2012 6:19 am
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Both my boys race on tubeless set ups. They carry a spare Co2 cannister as a back up. Anything else(ripped sidewall) and they would take it as game over.
There is a real danger of pinch flats(in particular) and sometimes punctures in a race and too much time is lost trying to change a tube.

It is lighter, they have more choice over tyre pressures and it is faster.

Changing tyres can be a faff. Some of the tubeless rims(american Classics) are dead easy, some OK and some a bit of a pain.

Its a bit like for the cross- anyone wanting to do well rund tubs even though they involve more prep and are more expensive


 
Posted : 24/05/2012 10:31 am
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In over 7 years of having UST on my fs I've only had 1 puncture. This was due to me not refreshing the fluid in over 12 months.
Before I went UST on this bike I was puncturing all the time. Thorns are a big problem around here

On my cx, ss and ht have countless punctures and can't wait to go UST/tubeless on these

Changing tyres is no faff at all


 
Posted : 24/05/2012 10:39 am
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I run tubeless on all three bikes, and have done for 8 years. I that time I've had 1 puncture. On tubes it was usually 6 to 8 a year. After removing winter tyres on my local (East Angila) hack, had 6 thorns in one tyre and hadn't even noticed it. The one puncture I had was fixed trail side with out even needing to remove wheel or tyre from the bike. The only down side I can think of is getting an initial seal with some combinations of tyre and rim.


 
Posted : 24/05/2012 12:14 pm
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I don't get the tyre pressure thing. I run tubes and when I'm out I start lowering the pressure to get grip and then when I've gone too far and it rides like a dog I up to the best level for me. Many here say you can run less pressure. But less pressure for me, well, it rides like a dog. [scratches head]

My interest has perked up over the self sealing ability which does away with thorn issues.


 
Posted : 24/05/2012 5:56 pm