Mountain Bike Reviews Forum banner
Cancel

Is there a good wide DH rim that is good for tubeless

3071 Views 13 Replies 8 Participants Last post by  latedropbob, 
Y
So, Im not sure if the 823 is actually wide enough for 2.5 and 2.7 nevegals - and obviously im gonna need to go with non-ust nevegals in that size, so i am worrying about the tire burping or rolling off with these monsterous tires since they are non ust.

Well, I'm only going to use the nevegal in the front, and i'll probably use a 2.7 high roller ust in the rear - which should help with the burping and what not, but im worried about the rear.

is there anything bigger than a 823? or better? im using FLOWS on my xc and AM bikes, just thinking about how to do my DH bike.
Reply
Save
Like
1 - 14 of 14 Posts
X
823's are the way to go for sure. They are good for tire widths from 2.30 to 3.00
http://www.mavic.com/mtb/products/ex-823-disc.995010.2.aspx fyi, it gives the recommended tire widths under the dimensions tab.

-Mike
Reply
Save
Like
dbabuser
WTB's are wiiide, but not UST. I had zero issues running them ghetto tubeless for a season of racing dh.
Reply
Save
Like
I
Ive been running 2.5 wire bead Nevs, and 2.35 folding bead Nevs, both non-UST tires, for 2 years now on both my bikes. No issues. Both set up tubeless on the 823's. Just use some Stans.

The folding beads are a little difficult to get seated, but it doesnt sound like you will be running those anyway.
Reply
Save
Like
F
i've been using 823s for years, but for my new wheelset this year i went with DT FR600 rims and the dh/fr stan's rubber rim strip w/ the schrader valve. perfect fit. various DH tires (michelin, maxxis, hutch octopus) mount up fairly easily tubeless on this setup.

the fr600 is wider than the 823s, and even with the rubber rim strip you save weight vs the 823.

better rim than the previous DT versions. i'm glad i let go-ride talk me into the FR600s.
Reply
Save
Like
Y
Thats what i thought

I like Dt Swiss rims, especially the 600's -but i was thinking that a UST rim would hold the tire on better at low pressures better than a non ust rim with a rim strip.

Wish Stans would make a true DH rim.
Reply
Save
Like
Lelandjt
xcoffmanx said:
823's are the way to go for sure. They are good for tire widths from 2.30 to 3.00
Click to expand...
Are you serious? A 2.5"+ tire on a 23mm rim? As for wide tubeless rims I've run tubeless with the yellow NoTubes rim tape on Mavic 729s (heavy, burly) and now the Syncros 32 (light, wide enough, strong so far). I use Flows as my race-run-only rims but I think they're a little narrow (24mm) for my 2.6" tires and I don't think they'd hold up to daily use.
Reply
Save
Like
X
Lelandjt said:
Are you serious? A 2.5"+ tire on a 23mm rim? As for wide tubeless rims I've run tubeless with the yellow NoTubes rim tape on Mavic 729s (heavy, burly) and now the Syncros 32 (light, wide enough, strong so far). I use Flows as my race-run-only rims but I think they're a little narrow (24mm) for my 2.6" tires and I don't think they'd hold up to daily use.
Click to expand...
I was just quoting what Mavic listed on there website as to recommended tire widths.

-Mike
Reply
Save
Like
Lelandjt
Yeah Mavic is on another planet with their rim widths. Weird cuz the 729 is one of the widest rims available but everything else they make is too narrow for the intended use.
Reply
Save
Like
F
yohyat said:
I like Dt Swiss rims, especially the 600's -but i was thinking that a UST rim would hold the tire on better at low pressures better than a non ust rim with a rim strip.
Click to expand...
i haven't found that to be the case. in any tire/rim combo i run (UST or Stan's or regular rim with rubber rim strip), after mounting / inflating tire and letting it sit at 45+ psi, i then drop it down to 12-15 psi and use my hands to roll the tire aggressively to try to get it to burp.

if a rim/tire combo can be made to burp in that simple garage test, i either try a different tire or modify the rim setup in some way (e.g. more layers of stan's tape, etc).
Reply
Save
Like
K
823s can handle wide tires just fine. I run Maxxis 2.5s on my 823s, and pretty much everyone I know running 823s has Maxxis 2.5s of some sort, usually Minions. 2 scoops of Stan's with non-UST High Rollers = no issues at all.
Reply
Save
Like
Lelandjt
2.5" Maxxis = not wide in the DH world. Even then, a 24-25mm rim would give the tire a better profile.
Reply
Save
Like
K
That's just because I don't see any need to run anything wider, although I wouldn't hesitate to put a 2.7 or 3.0 tire on an 823. Why you would need to is beyond me though....

FWIW, I have ran 2.7 Mobsters on 823s just because they were cheap.
Reply
Save
Like
latedropbob
I've got no problems running my 2.5 neve's on 823's. I'm running 2.7 minions right now which = 2.4ish and are great. Careful using stans with the kenda's. I just pulled one off and the stans ate right through the side wall and got up in between the two sidewalls and made a huge bubble. If you are gonna use any sealant make sure it's a homebrew without ammonia. kenda does not like ammonia.
Reply
Save
Like
1 - 14 of 14 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Mountain Bike Reviews Forum
A forum community dedicated to Mountain Bike owners and enthusiasts. Come join the discussion about bike parts, components, deals, performance, modifications, classifieds, trails, troubleshooting, maintenance, and more!
Full Forum Listing
Explore Our Forums
General Discussion Downhill - Freeride California - Norcal Passion Shocks and Suspension
Top