Mountain Bike Reviews Forum banner
1 - 12 of 12 Posts

· Bike Hustler
Joined
·
820 Posts
Discussion Starter · #1 ·
So the Mavic D3.1's (AKA EX819's)....


-got a set of proper UST valves installed.
-now I've got a semi leaky air seal around the bead/rim going on the rear tire (2.35 highroller)
-and I cant seem to get the front (2.7 Mobster) to catch the bead at all.


Tricks and tips here would be rad!

NOTE: these are non UST tires that I'm trying to mate with UST specific rims. Do I need to use some Stan's goop then to reinforce the seal?
 

· Registered
Joined
·
329 Posts
Soapy rim preparation is non-negotiable. I had a persistent slow leak until I finally bit the bullet and unseated my Maxxis 2.5" High Roller DH (non-UST) from my XM819 and re-prepped with soapy water. Then it held air just fine.

Make sure you find an air compressor. Go to the local gas station if necessary.

Good luck.
 

· Glad to Be Alive
Joined
·
42,881 Posts
Dave99 said:
Soapy rim preparation is non-negotiable. I had a persistent slow leak until I finally bit the bullet and unseated my Maxxis 2.5" High Roller DH (non-UST) from my XM819 and re-prepped with soapy water. Then it held air just fine.

Make sure you find an air compressor. Go to the local gas station if necessary.

Good luck.
true dat.................................very important
 

· Takw/agranofsalt
Joined
·
3,515 Posts
Dave99 said:
Soapy rim preparation is non-negotiable. I had a persistent slow leak until I finally bit the bullet and unseated my Maxxis 2.5" High Roller DH (non-UST) from my XM819 and re-prepped with soapy water. Then it held air just fine.

Make sure you find an air compressor. Go to the local gas station if necessary.

Good luck.
Wow, tubless just doesn't seem worth the hassle :rolleyes:
 

· Registered
Joined
·
162 Posts
1. Make sure the inside of the rim is clean including the bead
2. If the tire is dirty/used then wipe down the bead
3. Install tire on rim
4. Spray bead with simple green or similar cleaner - get the tire & rim wet but don't over do it.
5.Fill tire with air to max pressure - tire should make a ruckus - snap, crackle, pop - as it seats on the rim. If it goes on quietly you probably don't have a goood seal. Older tires will go on quiter but will still make some noise as they seat on the rim
6. Leave it this way for as long as you can then adjust pressure for riding
7. For big tires, 2.5+ and DH casings, you will need to use a compressor set at about 90 psi to get the bead to seal. Once the bead seals be very careful and watch the pressure gauge and do not exceed the tires max psi

Carry a CO2 pump on the trail

Carry a small tube of gel super glue - if you get a small puncture this will fix it quicker than anything. Simply pinch the puncture between your fingers add a drop or two of glue - wait about a minute - fill with air - go ride.

Any puncture larger than 1/4" and you may have to stick a tube in it and deal with it when you get home.
 
1 - 12 of 12 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.
Top