Punctures

[Gravity Sux]

I would like to know what is the air pressure difference that guys run between tubes and tubeless?

 

I run my tubeless at 28psi - rider weight about 83kg

 

Same pressure, same weight for 2.2 tires. Probably need to go higher with thinner tires. Tried Kenda SB8 at these pressures and they did not work for me so tire choice is probably a big one here

[scotty]

Three words

 

Oliver Yes Tubes

 

Interesting thread. Must say' date=' I can't relate to tubeless hell.

 

From my point of view I would not dream of using tubes. I have never had or seen anybody have a big issue with tubeless on training rides with tubeless. Had a bloke with us riding tubes and his ride turned out to be a circus.

 

He flatted, removed tube and patched it. In his haste to get it pumped he managed to rip the valve out. Now with a bit of pressure to fix the situation he pulled out a stans tube and managed to pinch this while inflating the tire. Could not patch this as patches don't stick to slime covered tubes. Riders riding tubeless offered tubes they carry as backup but we needed to go through three of these before we found one that was not perished - shows how much these folks needed the tubes but also a warning to those running tubeless, make sure the tube you carry as backup is useable. We finally got the show on the road again only for the same bloke to pick up a pinch flat on a rock about a half hour later. Not a great advert for tubes.

 

With my tubeless I have only once had a situation where I could not get going again after a plug and sometimes a bit of air. In many cases you don't even need to pump as you can plug before the pressure drops too much. If you put the plug in properly it does not seem to give trouble either. At the moment I am riding a tire that flatted during day 1 of Sani2c and was plugged. This tire completed this race, Epic and all the riding in between.  Thought I would put a new tire on for Lion Man but managed to hit some metal / wire on the track and got a big sidewall cut. Whatever cut the tire would have gone through a tube too.  This is the only time I have ever had to tube a tire to get home. Back on by old plugged tire again - now has 3000km and still going strong

[/quote']

These posts are always going to bring in different experiences, perhaps i have been fortunate that i have never suffered a puncture in a race and replace tyres more than i do my tubes.

[Gravity Sux]

The slow oke's don't get punctures?

 

 

Bit of truth in this. I have figured that when I am racing I flat about every 25 hours. During training / fun rides this is around every 150 hours on similar tracks (obviously not training hard enough or is that fast enough ).  The thing is at 35 or 45 km/h you just don't see the stuff you need to avoid and you just blast through sections that you may otherwise pick your way through. And to think the pros are riding another 30% faster than I can ride means they are spending a lot more time at these speeds. If I also went for 300g tires I would probably be in the poo.

[The expat cyclist]

The ONLY reason I went the tubeless route, was because I DNF'd on my first race: Snakebites!!! Front and rear, and had only one tube! Just never wanted to worry about snakebites ever again!

[The expat cyclist]

The slow oke's don't get punctures?

 

 

Bit of truth in this. I have figured that when I am racing I flat about every 25 hours. During training / fun rides this is around every 150 hours on similar tracks (obviously not training hard enough or is that fast enough ).  The thing is at 35 or 45 km/h you just don't see the stuff you need to avoid and you just blast through sections that you may otherwise pick your way through. And to think the pros are riding another 30% faster than I can ride means they are spending a lot more time at these speeds. If I also went for 300g tires I would probably be in the poo.

 

A friend reckons that if you go fast, you will FLY over the puncture causing obsticles/obsticals...testic...

[Gravity Sux]

Three words

 

Oliver Yes Tubes

 

Interesting thread. Must say' date=' I can't relate to tubeless hell.

 

From my point of view I would not dream of using tubes. I have never had or seen anybody have a big issue with tubeless on training rides with tubeless. Had a bloke with us riding tubes and his ride turned out to be a circus.

 

He flatted, removed tube and patched it. In his haste to get it pumped he managed to rip the valve out. Now with a bit of pressure to fix the situation he pulled out a stans tube and managed to pinch this while inflating the tire. Could not patch this as patches don't stick to slime covered tubes. Riders riding tubeless offered tubes they carry as backup but we needed to go through three of these before we found one that was not perished - shows how much these folks needed the tubes but also a warning to those running tubeless, make sure the tube you carry as backup is useable. We finally got the show on the road again only for the same bloke to pick up a pinch flat on a rock about a half hour later. Not a great advert for tubes.

 

With my tubeless I have only once had a situation where I could not get going again after a plug and sometimes a bit of air. In many cases you don't even need to pump as you can plug before the pressure drops too much. If you put the plug in properly it does not seem to give trouble either. At the moment I am riding a tire that flatted during day 1 of Sani2c and was plugged. This tire completed this race, Epic and all the riding in between.  Thought I would put a new tire on for Lion Man but managed to hit some metal / wire on the track and got a big sidewall cut. Whatever cut the tire would have gone through a tube too.  This is the only time I have ever had to tube a tire to get home. Back on by old plugged tire again - now has 3000km and still going strong

[/quote']

These posts are always going to bring in different experiences, perhaps i have been fortunate that i have never suffered a puncture in a race and replace tyres more than i do my tubes.

Think a big factor here is how you ride and obviously tire choice. Don't think you would have been so lucky with a 300g tire. The more you keep to the track and avoid hazards the fewer punctures you will get. I like the low pressures - in this case tubes are not an option for me.

[Gravity Sux]

The slow oke's don't get punctures?

 

 

Bit of truth in this. I have figured that when I am racing I flat about every 25 hours. During training / fun rides this is around every 150 hours on similar tracks (obviously not training hard enough or is that fast enough ).  The thing is at 35 or 45 km/h you just don't see the stuff you need to avoid and you just blast through sections that you may otherwise pick your way through. And to think the pros are riding another 30% faster than I can ride means they are spending a lot more time at these speeds. If I also went for 300g tires I would probably be in the poo.

 

A friend reckons that if you go fast' date=' you will FLY over the puncture causing obsticles/obsticals...testic...

[/quote']

I really try, how fast is fast enough? I need to avoid puncturing my testic...

[crasher]

I have already had 3 punctures and only been riding 2 months

 

Firstly ran without slime and got a flat from a tiny thorn size of a splinter

 

Put in slime tubes next was a snake bite on the rear that the slime couldnt seal but I did catch something hard that I did not see so thats my fault

 

Fitted a specialised no flats or whatever they call it tube as replacement 2 rides later got a nail through the tyre both sides of tube and through the rim/spoke liner

 

So in a short time I have not been too lucky on tubes.

 

I ride slow!!

 

I am hoping to get a mercury 2 in next couple of weeks that comes standard with XT tubeless rim set and hope to have more luck with tubeless

[mpcombrink]

Three words...

Airless Tires STOP

[Christopher Brunsdon]

No punctures in 3 months commuting to work and I ride tubes. Want to go tubeless eventually though as I'm currently running my tyres at 4 bar. I way 96kg and am cautious of snake bites. Riding on tar is one thing at 4 bar, but it wont cut it in the wild. Lowest I can safely go is about 3bar with my weight.

 

Got slime in the tubes for now as I do not won't to install tyre liners.

 

[L'Bie]

I is interesting to note the different experiences you have out there with punctures and yesterday I was caught out. I have been on tubeless with Joe's assistance for over a year and this happened twice now. the Joe's ran out. It is evedently clear that the daily commuting encounter several rubber piercing events and since Joe's does its job so well, I only have to was the bike and ride it. Up to a point that is. The Joe's run out and there is nothing left to plug the new puncture with. It is not too a severe probleom if home is close, but at 18km it is a bit of a strech. No cell phone (wieght and theft) left me with no choise than to hit the wall running. I inflated to the max, hit the road and went to the max heartrate. I made it with just a couple mm to spare. What a nice ride though. A parting note to self. Concider carrying the cell despite the risks and squirt a couple of cc Joe's into the rear before the next ride.

[Christopher Brunsdon]

 

Now where do you commute that you cannot carry your cell, Ruiterwacht?

 

I never leave home without my cell or Leatherman.

 

cbrunsdon2009-06-12 02:35:09

[AndreZA]

I never leave home without my cell or Leatherman.

 

 

 

 

Each in their own little pouch on you belt. Leatherman next to your 9mm on your right and phone on the left next to your comb.

[Christopher Brunsdon]

 

I never leave home without my cell or Leatherman.

 

 

 

 

Each in their own little pouch on you belt. Leatherman next to your 9mm on your right and phone on the left next to your comb.

 

No man, this is the Kaap, we don't do guns or combs, its more like my bottle of wine and spliff - leatherman is an awesome corkscrew too. The phone is like to call my buddies to enjoy the view you know

 

[Gravity Sux]

I is interesting to note the different experiences you have out there with punctures and yesterday I was caught out. I have been on tubeless with Joe's assistance for over a year and this happened twice now. the Joe's ran out. It is evedently clear that the daily commuting encounter several rubber piercing events and since Joe's does its job so well' date=' I only have to was the bike and ride it. Up to a point that is. The Joe's run out and there is nothing left to plug the new puncture with. It is not too a severe probleom if home is close, but at 18km it is a bit of a strech. No cell phone (wieght and theft) left me with no choise than to hit the wall running. I inflated to the max, hit the road and went to the max heartrate. I made it with just a couple mm to spare. What a nice ride though. A parting note to self. Concider carrying the cell despite the risks and squirt a couple of cc Joe's into the rear before the next ride. [/quote']

 

Tubeless sealent does run out and needs to be topped up every few months.  You also have better results if you ride regularly. It probably isn't worth doing tubeless if you are only riding every other week.

 

Whether you are running tubeless or not, carry a spare tube (and probably a cell phone). This is particularly importaint when getting out by MTB. You can cycle 20km in an hour but it is going to take you 4 to 5 hours to walk that distance - not fun.