Just looking into some new tyres, I'm buying some new wheels next week with ust rims so what tyres to buy? i want to set up tubeless, i have always just gone for the fattest stickiest rubber i can fit in my frame, I'm looking to cut down on weight and punctures.
Looking on the various tyre websites and they list them as either UST, TL Ready or tubeless, so what is what?
UST are thicker walled tubeless tyres, probably a bit heavier than standard ones, usually run with a bit of sealant in them.
TL ready are similar tyres with very thin walls that can be run either tubed or tubeless. IME they dont work quite as well as UST and have been porous needing more sealant. The walls are thiner and I have burped these off the rim so now I am back on full fat UST and wont be buying TL ready again... though others like them. I think some folk, me included have had problems inflating these depending on the tyre/rim combo.... Even with a CO2 cartridge I couldnt get them to seat and seal on a set of Mavic UST rims.
"Tubeless" could mean either of the above...
nice one, I'll just aim for the full fat UST labelled rubber then! 8)
Bontrager XR4 Team Issue TLR 2.35 are marvellous tyres. They are lighter than UST because they are porous, but a bit of Stans means they stay up for years.
Everybody I know rides them everywhere, but some prefer the smaller size 2.2. Both roll remarkably well.
nice one, I'll just aim for the full fat UST labelled rubber then!
UST tyres often have thicker, heavier sidewalls if that matters.
Andy
UST is Mavic's system - universal systeme tubeless, and is very reliable and easy to set up (track pump, seats easy, nae bother on the trail with a bit of sealant). It is pretty much universal IME - any UST tyre will go well on an 819, it's not like you have to pick and choose what works. You can literally go years between punctures (think I did 4 years on a FS without a flat at one point). Probably the place to start with tubeless.
If you get tired of paying £40+ for a tyre, or the weight is something you'd like to reduce, then tubeless ready will be lighter - but you can expect more variability setting them up. It's even possible to run normal tyres tubeless, but takes a lot of trial and error getting the rim and tyre combination right so you have a reliable set-up. If you do this, though, then you can run some really light (and cheap) tyres.
UST tyres are heavier and more expensive as they need to be completely air tight.
UST rims are heavier as they have two layers of metal, one for the spoke holes, and then another undrilled layer to make them airtight. Plus UST rims need different spokes and nipples as there is no access from the other side.
Tubeless Ready tyres are cheaper and lighter as they can be slightly porous, yes you need to add sealant but most people run sealant in their UST tyres for the added puncture protection anyway.
Tubeless ready rims are lighter as they rely on rimstrips (or yellow tape for Stans) to make the spoke holes airtight, rather than more metal. Stans (and possibly others) also use standard nipples and spokes.
I know what I'd choose, and its rare that I've struggled to seal a tubeless ready tyre using a trackpump. My wifes UST rims were a nightmare and I usually resorted to a CO2 cartridge to get them sealed, although it sounds like this may be down to the rim/tyre combination.
The yellow strip on Stans ZTR rims works perfectly and at 7 grams it's surely lighter than an extra metal wall or those screw-in nipple holders on Mavic 819s?
It all depends on the rim / tyre combo. UST tyre / UST rims is probably the safest combo but it's also heavier - plus Mavic rims are fairly narrow which gives the tyre a rounder profile compared to others - particularly if you go for wider tyres. I've had no issues mounting normal tyres on my Stan's Flow rims, they took a bit more effort than the Schwalbe TL-ready ones (which went on with very minimal fuss) - but still no need to resort to compressors or ghetto pump setups. No issues with either once they're seated with goo inside. I've never tried UST but given the added expense and weight I'm not inclined to try them either.
Try and find an example of someone using the same tyre/rim combo successfully. YMMV.
Ok so im looking at mavic crossmax st wheelset which is obviously ust, so would i be able to run a tubeless ready fat albert on that with some sealant or should i pay a weight penalty of about 500g and put the ust fat alberts on there?
My impression is that the Mavic wheelsets are fairly narrow rimmed - so you're more liable to have tyres burp. My guess is that you should just go for the UST ones but it'd be interesting to hear from someone with experience of the Crossmax wheels.