you must have been hungry, daymn!ate 9 dhf tubeless beads, no thanks
How low with the pressure can you go? <25psi?Kntr run 3c and stans... Ive never had alot of luck with UST tires something to do with the compound, butyl and flexability and blowing them out.. Not 1 brand specific but a few different brands have gone south...
Between the 2 3C FTW
I dont know Ive blown them (UST) out at almost 30+ psi, and after several brands quite using them. I refer stansand a more durable less flexy casing.How low with the pressure can you go? <25psi?
I suspect the difference you are seeing in the flow vs 823 rims has something to do with the height of the bead socket wall (it's lower profile on the flows, i'm pretty sure. my flows and 823s are all mounted up so it's not easy for me to measure currently).OK, here is my two cents worth after having several team riders running tubeless set ups with Maxxis UST tires for the past two seasons.
We have had great success running Minions and Highroller USTs with the Stan's ZTR rims, no burping down to 26 PSI and no sidewall ripping.
If we try and run the same set up on a stiifer UST rim such as a Mavic 823 then forget it, you will cut the sidewalls frequently regardless of pressure and will also burp if run much below 30 PSI.
One of our Pro Riders has been running a ZTR / Minion tubless set up for the last two seasons and has not had single issue in 25 + races with his front tire / wheel and has only had one or two tire punctures in the rear over that time.
Having said that , the ZTR rim rear set up is not as stiff or as durable as the 823 or even a 721 rim set up, especially if you are bigger rider and ride like a hack.
Transcend DH Team
I suspect the difference you are seeing in the flow vs 823 rims has something to do with the height of the bead socket wall (it's lower profile on the flows, i'm pretty sure. my flows and 823s are all mounted up so it's not easy for me to measure currently).
i had a new UST DHF in the garage that i mounted on my FR600/stan's rubber rim strip this May, and it's been holding up well at northstar so far. 29 psi (i'm a heavy guy) on the rear. not sure how the bead socket dimension compare to these other rims. the 600 is a pretty stiff rim.
agree with most of the above. i was just pointing out that stiffness might only be part of the difference here.yes, I agree the two rims in question have radically different sidewall profiles but the 823 is just so much stiffer as well and that makes it that much tougher on the tire sidewalls around the bead area. ZTR Flows are much softer but still mange to hold air even after the sidewalls have been folded over. Also they are the easiest rims to inflate with UST tires , you can even do it with a small hand held pump most of the time. Definitely no compressor required here.
Good clarification. I'm an 823 user and that's the problem... But, that's no excuse to Maxxis for making a weak UST tire that for all intents and purposes, can only be used with 823's as it's the only true UST rim on the market...OK, here is my two cents worth after having several team riders running tubeless set ups with Maxxis UST tires for the past two seasons.
We have had great success running Minions and Highroller USTs with the Stan's ZTR rims, no burping down to 26 PSI and no sidewall ripping.
If we try and run the same set up on a stiifer UST rim such as a Mavic 823 then forget it, you will cut the sidewalls frequently regardless of pressure and will also burp if run much below 30 PSI.
One of our Pro Riders has been running a ZTR / Minion tubless set up for the last two seasons and has not had single issue in 25 + races with his front tire / wheel and has only had one or two tire punctures in the rear over that time.
Having said that , the ZTR rim rear set up is not as stiff or as durable as the 823 or even a 721 rim set up, especially if you are bigger rider and ride like a hack.
Transcend DH Team
Well actually the ZTR flow are also UST equivalent since no rim strip or seallant is required if you so choose. And most other UST tires we have tried from Michelin and Hutchinson etc. will also have the same problems as the Maxxis on an 823Good clarification. I'm an 823 user and that's the problem... But, that's no excuse to Maxxis for making a weak UST tire that for all intents and purposes, can only be used with 823's as it's the only true UST rim on the market...
I'm a hack and my 823's have survived a lot. I'm nervous to try anything else out there.
O.K. I'll blame Mavic.Well actually the ZTR flow are also UST equivalent since no rim strip or seallant is required if you so choose. And most other UST tires we have tried from Michelin and Hutchinson etc. will also have the same problems as the Maxxis on an 823
Not to get in an argument here, but I don't see how anyone would ever consider a rim with spoke holes drilled in the rim bed a true UST equivalent. A Flow rim will obviously not hold air without the yellow tape or Gorilla tape or some equivalent. The tape IS the rim strip, ie not UST. Doesn't mean it doesn't work, just means its not UST.Well actually the ZTR flow are also UST equivalent since no rim strip or seallant is required if you so choose.
Im with you on the hack that wants his ust done right Though some complete wheels have their own UST rims (fulcrum, cranks bros? )Good clarification. I'm an 823 user and that's the problem... But, that's no excuse to Maxxis for making a weak UST tire that for all intents and purposes, can only be used with 823's as it's the only true UST rim on the market...
I'm a hack and my 823's have survived a lot. I'm nervous to try anything else out there.
Yup. Mavic's the only one making a rim though, and that's the only way I can run my beloved Hadley hubs.Im with you on the hack that wants his ust done right Though some complete wheels have their own UST rims (fulcrum, cranks bros? )
Strangly enough, I've never flatted in B.C. Even throwing my bike down every Whistler chute. You'll be fine. The tears I've had on my UST Minions have been just small enough to cause a flat, but the tire was still usable with a tube. Just bring a box of them cause I heard they're $20 in the village right now!damn, just got some UST Minions to run on my 823's for my BC trip, now I'm scared. Just had 909s this past weekend at N* and they both tore beads, the front about 200 yards into our first run.
Are there any tires that people are running tubeless on 823's without issue?
WOW all this time seeing your posts and chatting it up I never saw the R in the last name...If you are looking to run 2.7", then 3c is your only option.
The other thing to consider is how often you can replace them. I think the 42's grip better in all conditions when they are new. However, 3C knobs keep thier edge longer. Either can be run tubeless. UST air up with a floor pump easier.
I run ~26 psi with DHF's. I can feel the knobs flexxing with lower pressure. 205 pounds for reference.
Thats what I was thinking too. Thanks.If I put 2 scoops of stans in a tire, I find that after two months most of the liquid has evaporated and there are dry chunks of latex in the tire. I try to add a scoop every two months or so.