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Tyre Burping


MTB-BFK

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Posted

I am riding a Rocket Ron on the back, and on the few occasions that I get a bit of air and land on the back wheel, I tend to burp half the air out of the tyre.  Is this a:

 

wheel issue;

Tyre issue;

tubeless conversion issue;

pressure issue (too hard or too soft?); or

lose weight, you fat bastard issue?

 

Previously I rode Geax Sagguaro (however the hell you spell it), and they burped like the boatrace team at varsity.  I'm keen to try my hand at a ramp or two, but am running a bit chicken$#it for the landing - any suggestions?

Posted

Not to be bias.... but I had the same issue with Rocket Ron's.

 

Took them off, did an exorcism on the wheel, burnt said tire and fitted Maxxis.

 

Never looked back.

Posted

What rims are you running? 

 

I'm no expert, but I suspect that your tyres' beads aren't gripping the rims tightly enough. 

Syncros by DT Swiss XR 2.0 

Posted

Not to be bias.... but I had the same issue with Rocket Ron's.

 

Took them off, did an exorcism on the wheel, burnt said tire and fitted Maxxis.

 

Never looked back.

I did the same to the Geax tyres - can't do it again, its getting too expensive

Posted

I did the same to the Geax tyres - can't do it again, its getting too expensive

 

I tend to hunt for the CWC bargains on the Crossmark and Ardent tyres.

 

What you can do is to deflate the tyre completely remove and scrub away all sealant from the bead. Then put in sealant and bomb it, to reseal the the tyre on the rim. It might be as the_odinson suggests. 

Posted

It's all of them together. 

 

Do you have the Snakeskin versions? If not, the sidewall is super weak and prone to folding under pressure. Only cure for that is to increase pressure.

 

 

Narrow wheels don't support the carcass as well as wider wheels do, due to the fact that they "pinch" the tyre and cause it to be less stable than if the beads were spaced further apart (same concept as your stability with your feet together vs shoulder width apart - far more stable with your feet farther apart from each other). Only cures for that is: 1: Stronger sidewalls B: More pressure. iii: Wider Rims. D: All  of the above.

 

A bad tubeless conversion will burp more than a good one. Make sure you have a good seal, and your tires are well suited to the rims. Some rims just don't suit tubeless that well due to either the rim wall height or the bead seat being ***.

 

Weight directly influences burping & rolling. Only solutions: A: Lose weight, you fat bastard. 2: Get a tire with stronger sidewalls (snakeskin / EXO in maxxis / Protection etc) C: More pressure 4: You get where this is going, don't you...

 

 

 

The ONLY options for you are to either get wider wheels, increase the pressure, lose weight or get tires with better sidewalls. Or in first place as a combination: A, C & D. That way it won't matter about your weight. 

 

Cheapest option is to lose weight, you fat bastard, and to pump them up harder until you do...

Posted

Not to be bias.... but I had the same issue with Rocket Ron's.

 

Took them off, did an exorcism on the wheel, burnt said tire and fitted Maxxis.

 

Never looked back.

icon? 2.2 or 2.4?

Posted

Oh - by the way. Cheap, non Tubeless / protection / snakeskin / exo etc tires will always have this issue, unless you're a complete lightweight and / or have rims wider than Amy Winehouse's friday night line. 

 

Weak sidewalls are common across all tire brands, and you literally have to pay more to get the ones with better strength, as they always have more material and more puncture protection / kevlar inserts blah blah insert marketing jargon here. 

Posted

Syncros by DT Swiss XR 2.0 

think that is your problem, dont know enough to diss any brand of rims, but having exact same problem with said rims, currently running xking at back, could it potentially be the fact that i did a tubeless conversion? 

Posted

Oh - by the way. Cheap, non Tubeless / protection / snakeskin / exo etc tires will always have this issue, unless you're a complete lightweight and / or have rims wider than Amy Winehouse's friday night line. 

 

Weak sidewalls are common across all tire brands, and you literally have to pay more to get the ones with better strength, as they always have more material and more puncture protection / kevlar inserts blah blah insert marketing jargon here. 

tanks, give some exmaples of tyres please

Posted

I changed from Easton Haven AM's to Enve, and suddenly my WTB Bronson is having this (burping) problems. It is the Xc Enve's, and a 2.3 Bronson. Do I run a higher PSI, or do I have to go for a narrower tyre?

 

Thanks in advance for any help.

 

Note: It only happened once after landing a jump / endo with the front wheel not "exactly" facing forward.

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