Go Back  Bike Forums > Bike Forums > Bicycle Mechanics
Reload this Page >

Assymetric gravel wheels wont seal

Notices
Bicycle Mechanics Broken bottom bracket? Tacoed wheel? If you're having problems with your bicycle, or just need help fixing a flat, drop in here for the latest on bicycle mechanics & bicycle maintenance.

Assymetric gravel wheels wont seal

Old 03-01-20, 10:16 PM
  #1  
DOS
Senior Member
Thread Starter
 
DOS's Avatar
 
Join Date: Feb 2008
Location: Arlington, VA USA
Posts: 2,066
Mentioned: 7 Post(s)
Tagged: 0 Thread(s)
Quoted: 239 Post(s)
Liked 54 Times in 43 Posts
Assymetric gravel wheels wont seal

I am having a heck of a time getting panaracer gravelkings to seal on my new hunt rims. I have retaped twice so am pretty sure its not the tape and have tried a couple of different valves. Best guess, because its the only difference between these wheels and others I have set up with out issue, is that the valve hole is offset from centerline so the valve isnt seating correctly. Any recommendations for valves specifically designed for asymmetric rims?
DOS is offline  
Old 03-01-20, 10:57 PM
  #2  
AnkleWork
Senior Member
 
Join Date: Jan 2013
Location: Llano Estacado
Posts: 3,702

Bikes: old clunker

Mentioned: 13 Post(s)
Tagged: 0 Thread(s)
Quoted: 684 Post(s)
Likes: 0
Liked 97 Times in 75 Posts
Originally Posted by DOS View Post
I am having a heck of a time getting panaracer gravelkings to seal on my new hunt rims. I have retaped twice so am pretty sure its not the tape and have tried a couple of different valves. Best guess, because its the only difference between these wheels and others I have set up with out issue, is that the valve hole is offset from centerline so the valve isnt seating correctly. Any recommendations for valves specifically designed for asymmetric rims?
Crazy idea: find where they leak.
AnkleWork is offline  
Old 03-01-20, 11:49 PM
  #3  
DrIsotope
Non omnino gravis
 
DrIsotope's Avatar
 
Join Date: Feb 2015
Location: SoCal, USA!
Posts: 8,463

Bikes: Nekobasu, Pandicorn, Lakitu

Mentioned: 119 Post(s)
Tagged: 0 Thread(s)
Quoted: 4820 Post(s)
Liked 1,555 Times in 876 Posts
So when you say seal, do you mean they leak air out quickly, or do you mean you can't get the beads seated? If it's a leak issue, you need to find out where the leak is. If it's blowing out a spoke hole, it could be the valve, it could be the tape.

Kinlin recently switched their design on the XR31, where the disc model (no brake track) is now asymmetric. I had no issues getting tires to seat or seal. I continue to recommend Velotubes valves regardless of wheel type, they're all I use.
__________________
DrIsotope is offline  
Old 03-02-20, 01:57 AM
  #4  
Darth Lefty 
Disco Infiltrator
 
Darth Lefty's Avatar
 
Join Date: May 2013
Location: Folsom CA
Posts: 11,071

Bikes: Schwinn Paramount, Salsa Timberjack, Diamondback Expert TG, Burley Samba

Mentioned: 65 Post(s)
Tagged: 0 Thread(s)
Quoted: 2024 Post(s)
Liked 602 Times in 418 Posts
I had trouble with Diamondback Blanchard rims whose center channel was off center. The side with the wider shelf would seat fine but the side without would just flutter. best solution was using Continental tires which are tight. Second best solution was to put a tube in, inflate and seat, then break the long-shelf side to wiggle out the tube and the stem in. Might not be possible with little road bike tires.
__________________
Genesis 49:16-17
Darth Lefty is offline  
Old 03-02-20, 05:09 AM
  #5  
DOS
Senior Member
Thread Starter
 
DOS's Avatar
 
Join Date: Feb 2008
Location: Arlington, VA USA
Posts: 2,066
Mentioned: 7 Post(s)
Tagged: 0 Thread(s)
Quoted: 239 Post(s)
Liked 54 Times in 43 Posts
The tires seat fine and will inflate. Air escapes around the valve, hence my question about valves. I have retaped and double taped with Stans tape and have had no trouble getting other wheels to seal up with this approach. The only difference between these rims and others I have used is the offset valve hole so am asking whether there is something there I am doing wrong.
DOS is offline  
Old 03-02-20, 05:42 AM
  #6  
dsaul
Senior Member
 
Join Date: Jan 2013
Location: South Jersey
Posts: 1,628
Mentioned: 11 Post(s)
Tagged: 0 Thread(s)
Quoted: 482 Post(s)
Liked 243 Times in 178 Posts
I have set up two sets of the Hunt 4 season wheels with the valves that come with them and haven't had any problems with leaks. Tubeless valve stems need to be really tight to seal properly. I push on the rubber part with my thumb, while tightening the nut, and then rock the stem back and forth a bit and tighten some more. The process leaves me with an indentation on my thumb from pressing on the valve.
dsaul is offline  
Likes For dsaul:
Old 03-02-20, 06:03 AM
  #7  
DOS
Senior Member
Thread Starter
 
DOS's Avatar
 
Join Date: Feb 2008
Location: Arlington, VA USA
Posts: 2,066
Mentioned: 7 Post(s)
Tagged: 0 Thread(s)
Quoted: 239 Post(s)
Liked 54 Times in 43 Posts
Originally Posted by dsaul View Post
I have set up two sets of the Hunt 4 season wheels with the valves that come with them and haven't had any problems with leaks. Tubeless valve stems need to be really tight to seal properly. I push on the rubber part with my thumb, while tightening the nut, and then rock the stem back and forth a bit and tighten some more. The process leaves me with an indentation on my thumb from pressing on the valve.
Thanks, I havenít gone that far.
DOS is offline  
Old 03-02-20, 11:08 AM
  #8  
AnkleWork
Senior Member
 
Join Date: Jan 2013
Location: Llano Estacado
Posts: 3,702

Bikes: old clunker

Mentioned: 13 Post(s)
Tagged: 0 Thread(s)
Quoted: 684 Post(s)
Likes: 0
Liked 97 Times in 75 Posts
You could also seal the valve to the rim with some silicone sealer -- works well and easily removed later.
AnkleWork is offline  
Old 03-02-20, 11:38 AM
  #9  
redlude97
Senior Member
 
Join Date: Sep 2011
Posts: 4,656
Mentioned: 28 Post(s)
Tagged: 0 Thread(s)
Quoted: 1924 Post(s)
Liked 178 Times in 130 Posts
What sealant are you using? Did you shake the wheel around vigorously? Was there sealant leakage around the valve hole?
redlude97 is offline  
Old 03-02-20, 11:41 AM
  #10  
Koyote
Senior Member
 
Join Date: Sep 2017
Posts: 1,977
Mentioned: 20 Post(s)
Tagged: 0 Thread(s)
Quoted: 1080 Post(s)
Liked 1,109 Times in 533 Posts
Originally Posted by AnkleWork View Post
You could also seal the valve to the rim with some silicone sealer -- works well and easily removed later.
That's an option. Another option, which I've read about but not ever needed to try, is to cut a little section of an old inner tube into a circle, then punch a hole in the middle, and use it sort of like a soft washer when installing your valve inside the rim. It'll be a bit soft and flexible, and hence might help with the seal.

PS: Use Orange Seal.
Koyote is offline  
Old 03-02-20, 08:20 PM
  #11  
DOS
Senior Member
Thread Starter
 
DOS's Avatar
 
Join Date: Feb 2008
Location: Arlington, VA USA
Posts: 2,066
Mentioned: 7 Post(s)
Tagged: 0 Thread(s)
Quoted: 239 Post(s)
Liked 54 Times in 43 Posts
Originally Posted by dsaul View Post
I have set up two sets of the Hunt 4 season wheels with the valves that come with them and haven't had any problems with leaks. Tubeless valve stems need to be really tight to seal properly. I push on the rubber part with my thumb, while tightening the nut, and then rock the stem back and forth a bit and tighten some more. The process leaves me with an indentation on my thumb from pressing on the valve.
This, along with wider tape, seems to have done the trick. I was spoiled by my HED rims, which seal up almost air tight without sealant, without having to really crank on the stem nut, and with 21mm tape in a 21mm internal width rim. With the 20mm Hunt rim, I had been using 21mm tape, which was too narrow. I pressed in 25mm tape and that helped a lot, although I was still losing more air than I would have with the HED rims. But 60ml orange seal seems to have filled the last gaps.
DOS is offline  

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Do Not Sell My Personal Information -

Copyright © 2018 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.