Should I get UST rims?

Stu 74
Stu 74 Posts: 463
edited October 2009 in MTB buying advice
If all goes well I will be getting / building a new FS trail bike in the not too distant future. As someone who likes to run with low tyre pressures but consequently suffers from regular pinch flats, I am seriously considering going tubeless on my next bike.

The question is should I get UST specific rims, such as Mavic XM819s, or should I get regular rims and then use a tubless conversion kit? Have done a bit of research but I'm still a little confused as to the pros and cons of each option. :?

Cheers

Stu

Comments

  • stumpyjon
    stumpyjon Posts: 3,983
    From my limited experience of going tubeless I'd say go UST specific. After all they are designed to be run tubeless. Saves a lot of hassle with rim tape etc. Nothing stopping you running tubes and non UST tyres later if you change your mind.
    It's easier to ask for forgiveness than for permission.

    I've bought a new bike....ouch - result
    Can I buy a new bike?...No - no result
  • artillerydave
    artillerydave Posts: 715
    in my experience the tyres are more important than rims for tubeless conversions, UST rims are great, but converted standard rims are just as effective at holding air (big fan of DT swiss rim kits) the selection of tyres ie UST or standard is more of an issue. I would say cheapest and best option is a coverted rim with UST tyres.
  • Spud Son
    Spud Son Posts: 48
    XM819's on Hope Pro2 or 3 hubs, laced with DT Comp or Sapim spokes.

    With a UST rim you can easily run tubes, and it will save you the hassle of a rim kit
  • Anonymous
    Anonymous Posts: 79,665
    i run 2 sets of mavix ust rims (crosstrails on one and xm819s on pro2's on the other) both have been fine with normal folding tyres (high rollers on the crosstails and mountain kings on t'other) using stans tyre milk.

    i run a stans kit on my old stumpy with regular ust tyres and to be honest, it is just as reliable.

    the only difference is that with proper ust tyres, there is no leaking, the bike has been stood for 2 months and i checked earlier and they have lost no pressure at all. regular tyres need topping up every couple of weeks.

    in summary, i prefer the ust rims and i like the ability to fit any tyres by using normal, non ust tyres as they are lighter and usually cheaper.
  • i need a ust rim that can take a 2.1 up to a 2.5 tyre and it has to be strong, any ideas??
    http://www.sketchymtb.co.uk/Blah.pl the new XC in Kent


    http://deadpool2e.pinkbike.com/channel/Afan-Vids/

    MOUNTAIN BIKING- The pastime of spending large sums of money you don't really have on something you don't really need.
  • ride_whenever
    ride_whenever Posts: 13,279
    if an actual 2.5" tyre then you'll need the mavic 823 if it's more like 2.3" then you can get away with the 819

    the ztr flow from stans is also worth a look
  • joshtp
    joshtp Posts: 3,966
    http://www.youtube.com/watch?v=WRM7gq1fcoQ
    then do step 2
    im doin it soon, suposed to work briliantly, and its mega cheap! and you dont need a ust rim or tire!
    I like bikes and stuff
  • if an actual 2.5" tyre then you'll need the mavic 823 if it's more like 2.3" then you can get away with the 819

    the ztr flow from stans is also worth a look

    yes but a the 823 says no smaller than a 2.2 :(
    http://www.sketchymtb.co.uk/Blah.pl the new XC in Kent


    http://deadpool2e.pinkbike.com/channel/Afan-Vids/

    MOUNTAIN BIKING- The pastime of spending large sums of money you don't really have on something you don't really need.