'are you running sealant?'

[Boeing]

Hey Boeing (and others),

I run maxxis ignitors and crossmarks on my 29er hardtail. Put around 23-29 psi in em.

On race days I have had to make some last minute tire swaps with Stan's and they work fine immediately. What I do is pump the tire to around the max or so (50ish?) until I hear the pop of the bead seating and then I let the pressure out to what I want to run it at. A lot of people I know do this. Some even use Cafe Latex which is more of a foam like sealant whereas Stan's is more like a liquid with tiny sealing chunks.

Anyway

Since Stan's is a liquid when you rotate your tires it will collect evenly on the internal side of the tread. I think riding after adding is a better way to ensure the products performance because it allows the sealant to penetrate areas near the bead.

Also

To ensure that the bead does seat take some of the Stan's and rub it on the bead of the tire, this will lubricate it better than nothing. If you pump up the tire pressure to 50 psi and it still doesn't pop then get some soapy water and rub it on the areas that will not seat.

Just my experience for whats it worth

thanks for the heads up. good advice with regards to riding after adding... just a good flat spin on the pavement can I ask?

 

[StyrbjornSterki]

I am interested to know if you run strictly UST tires for any particular reason

Yes. Because I tried unsuccessfully to convert my favorite tube-type tires to tubeless. The beads were too undulating and I could never shock them enough to cause them to seat. Yes, I tried mounting them first with tubes, even tried heating the tire carcass. Switching to UST tires cured that problem.

 

[Boeing]

Yes. Because I tried unsuccessfully to convert my favorite tube-type tires to tubeless. The beads were too undulating and I could never shock them enough to cause them to seat. Yes, I tried mounting them first with tubes, even tried heating the tire carcass. Switching to UST tires cured that problem.

it certainly makes it less of a hassle in some respects

Bummer, IMHO UST selection limited size and tread selection and adds hundreds of grams over some of the "tubeless ready" tires. many companies have made adjustments to their bead. so have rim manufacturers for that matter

do you mind if I ask what your favorite tire was that didn't work for you

I get it the older Larsen TT didn't work for me

 

[SpiTimeCannon]

I run a Nobby Nic on the front with a Larsen TT Exception on the rear. Mavic 819 rims with Stans.
Larsens a bit tricky to get on, best with a compressor. have done it with a floor pump but its a bit of a sprint. They both lose a bit of air over time so I check before riding. 1.8 bar front and 2 bar rear.
I add some Stans every six weeks or so. Change once a year, find some latex balls inside.
Also find thorns and bits of metal sticking through. Ok so that would have been 5 or 6 punctures with a tube, but if I get a big hole one day and fit a tube ?

 

[StyrbjornSterki]

...do you mind if I ask what your favorite tire was that didn't work for you....

They were Velociraptors.

Ironically, I just had relocated to a different part of the world and I'd traveled there a set of new UST wheels. When the WTB tires proved a problem, I went to the LBS for suggestions. They put me on the Larsen TTs, which I've had great service from. Even new, all they take is a floor pump to seat to the Stan's ZTR rims.

 

[tidean]

Sealant absolutely!!!

I have been riding mtb since wire beaded tyres were all u could get, & suspension was a dream, moved on when technology did, Kevlar beads, Stans, etc. Now mavic t/less rims & maxxiss tyres. There is no other way, I use a compressor to inflate but u can get high volume floor pumps that will do it, a mate of mine has one 'cos he does not have a compressor. I run mine a bit low & get the occasional burp, like once every 3-5 months but am willing to put up with that for the great traction I get, My wife's t/less tyres wear the side walls out cos' she runs em so low that they flex & rub on stuff so they get thrown out before the tread is done in. Again she is happy with the good traction she gets.
Go tubeless with sealant & move on. I did a stage race in Alice Springs in central Aust for 7 stages without a tyre worry. It is possibly the most inhospitable terrain for tyres on the planet.

 

[Boeing]

has anyone ever run sealant in a road tube or ust? talk about silly string

 

[tidean]

Sealant in road tyres - Absolutely!!

I use tubes with removable valves so that I can squeese in the Stans sealant.
I am running a 19mm 160g time trial only tyre on the rear just to use it up cos I won't be doning that sort of road comp anymore & have had it on my bike for about a year now & no punctures so far!!

 

[Boeing]

Curious what tire pressure all y'all are running

 

[StyrbjornSterki]

0.7 - 1.0 bar front (10-15 psi)
1.7 - 2.4 bar rear (25-35 psi)

 

[Boeing]

0.7 - 1.0 bar front (10-15 psi)
1.7 - 2.4 bar rear (25-35 psi)

Interesting difference.

Are you on a 26?

BTW what gauge do you use to measure? I find most the digital ones inconsistent?

 

[slcbiker]

How can you run 10-15 psi? Even with UST tires and Stan's, I can't do that low, as the tires will burp if I corner too hard.

 

[Boeing]

I go as low as 19 on my front but I only run tubeless on the rigid 29er so far, depending on terrain.

In addition I have the velocity p35 rims with the Ardent 2.4. The 35mm wide rim seems to help with low pressure.

15 seems quite low. With the dental coverage I have I can't afford a front burp

But it is hard to truly gauge the pressure. I have yet to find a real accurate gauge. My Floor Lezyne seems to measure the most consistent.

 

[StyrbjornSterki]

Interesting difference.

Are you on a 26?

BTW what gauge do you use to measure? I find most the digital ones inconsistent?

Yes, 26ers. I have both but it isn't that critical. I'm lazy so I usually just use the analog gauge on my Silca pump.

How can you run 10-15 psi? Even with UST tires and Stan's, I can't do that low, as the tires will burp if I corner too hard.

I only run the low pressures in sandy environments. Not to much grip in the sandy corners unless there's a berm.

I did run wide of a corner once, face planted and bit through my upper lip. Yeouch! But there wasn't a burp, just a rider error.

 

[dsut4392]

-a finger-thickness green branch with a pointy end can punch a finger-size hole right through the centre of your tread

On the plus side this means I can get rid of the Monorail tyre that I didn't like much without feeling too guilty

Was this a side wall puncture???

Nope, right through the centre of the tread, probably started between two knobs but did slice through part of a knob. The tyre had virtually no wear, I'm careful about not skidding on the trail and don't ride this bike on tarmac except for a couple of km at either end of a ride (great trails a stone's throw from work and home here in Hobart Tasmania)


Currently running a standard Maxxis Ignitor 2.3 as tubeless on the rear, and couldn't find a tubeless barracuda in the local shops so went for a Conti Mountain King 2.4 which I'm liking a lot.

 

[slcbiker]

I've got those 2.4 Mountain Kings as well. Very nice.