Notices
General Cycling Discussion Have a cycling related question or comment that doesn't fit in one of the other specialty forums? Drop on in and post in here! When possible, please select the forum above that most fits your post!

Flat Repair Air

Old 05-10-24, 05:52 PM
  #26  
Senior Member
 
indyfabz's Avatar
 
Join Date: Jan 2010
Posts: 39,733
Liked 16,180 Times in 7,598 Posts
Originally Posted by spinconn
My reason for asking is I am trying to decide, for long rides in the SC summer, whether to put my Topeak Mini Morph on my bike or use those attachment points for an extra water bottle and just carry CO2 in my bag. I wondered what other folks did.
The pump didnít come with a bracket that attaches to the bottle bosses and still allows you to attach a cage to the same bosses?

See photo in post #7 above.
indyfabz is offline  
Likes For indyfabz:
Old 05-10-24, 05:53 PM
  #27  
Over the hill
 
urbanknight's Avatar
 
Join Date: Mar 2006
Location: Los Angeles, CA
Posts: 24,418

Bikes: Giant Defy, Giant Revolt

Liked 1,259 Times in 714 Posts
Originally Posted by genejockey
On one of our C&V rides, one rider got a puncture in one of his tubulars. I can't remember whether he added sealant to the tire then, or already had it in the tire, but it sealed and he re-inflated it with CO2, and rode the remaining 20 miles of the ride without a problem.

So now, on the exceedingly rare occasions when I ride with tubulars, I carry sealant, a valve core wrench, and a pump. And a spare tire.

And a phone.
I considered running tubulars with sealant before trying tubeless, but couldn’t verify how well it would work. Sounds like people are generally happy with it now. I really liked the ride quality of tubulars.
__________________
It's like riding a bicycle

Last edited by urbanknight; 05-10-24 at 11:38 PM.
urbanknight is offline  
Old 05-11-24, 11:09 AM
  #28  
climber has-been
 
terrymorse's Avatar
 
Join Date: Dec 2004
Location: Palo Alto, CA
Posts: 7,345

Bikes: Scott Addict R1, Felt Z1

Liked 3,819 Times in 1,902 Posts
Originally Posted by squirtdad
just got some rene herse TPU tubes.....Co2 not advised for those
Interesting. I assume the "problem" when using CO₂ with TPU tubes are the cold temperatures. I've used CO₂ on TPU tubes successfully, but I make sure to inflate slowly.

You should always inflate slowly with CO₂. I froze and punctured a butyl tube once with CO₂ -- it failed right around the valve.
__________________
Ride, Rest, Repeat. ROUVY: terrymorse



Last edited by terrymorse; 05-11-24 at 11:13 AM.
terrymorse is offline  
Likes For terrymorse:
Old 05-11-24, 12:01 PM
  #29  
Senior Member
 
squirtdad's Avatar
 
Join Date: Jul 2006
Location: San Jose (Willow Glen) Ca
Posts: 10,056

Bikes: Kirk Custom JK Special, '84 Team Miyata,(dura ace old school) 80?? SR Semi-Pro 600 Arabesque

Liked 3,055 Times in 1,647 Posts
Originally Posted by terrymorse
Interesting. I assume the "problem" when using CO₂ with TPU tubes are the cold temperatures. I've used CO₂ on TPU tubes successfully, but I make sure to inflate slowly.

You should always inflate slowly with CO₂. I froze and punctured a butyl tube once with CO₂ -- it failed right around the valve.
I have not been able to to inflate slowly with Co2.... probably operator error. So for me I have ruled out CO2 for TPU.

as noted, especially with new TPU tubes, rene herse call for 20 PSI inflating increments.... to be 100% clear they do not say no Co2, that is me saying know way I personally can do slow inflation with CO2
__________________
Life is too short not to ride the best bike you have, as much as you can.





squirtdad is offline  
Old 05-11-24, 01:46 PM
  #30  
Full Member
Thread Starter
 
Join Date: Jul 2019
Location: SC
Posts: 213
Liked 54 Times in 31 Posts
Well, having not tried it I would be interested in the method you use to do it slowly. I assumed it would be out of your control once you pierce the seal.
spinconn is offline  
Old 05-11-24, 02:07 PM
  #31  
The Wheezing Geezer
 
Fredo76's Avatar
 
Join Date: Oct 2021
Location: EspaŮola, NM
Posts: 1,147

Bikes: 1976 Fredo Speciale, Rivendell Clem Smith Jr., Libertas mixte

Liked 1,035 Times in 491 Posts
Originally Posted by rumrunn6
Forget what I said about Schrader valves I overlooked the OP mentioning tubular tires but now Iím curious why They added that specification to asking about how people inflate their tires. forgive my ignorance, what is unique about tubular tires that affects how you inflate them?
Nothing unique about inflating tubulars, really. I called mine a modern sew-up pump partly because it's presta-only, partly because it's a press-on fit (although plus a lever for a better seal), like frame pumps used to be, without a screw-on hose, and partly because I can hold the head with enough stability even on long valve stems, mainly because the strokes are so easy that a wrapped finger will suffice. Topping off most sew-ups with an old-style frame pump would require a fair amount of hand and arm strength for 5-10 hard strokes, and long valve stems make that trickier these days - no thumb over the tire with the pump head snug against the rim, as is possible with short valve stems and shallow rims.

My front Rally 21mm goes for a week or two between top offs, and I use my floor pump for the 28mm rear, which needs topping off every other day (I've never run super high pressures), but the Roadie mini TT would work fine. How long it will last remains to be seen.
Fredo76 is offline  
Likes For Fredo76:
Old 05-11-24, 02:59 PM
  #32  
With a mighty wind
 
Join Date: May 2015
Posts: 2,683
Liked 932 Times in 529 Posts
The only reason Iíd ever ride tubular again would be in pursuit of being super vintage. Iím talking something like wooden rims or similar.

In that scenario, Iíd already have a Silca frame pump under the top tube, to ride without it would be incomplete. So this kind of sorts itself out.

I canít think of another reason in 2024 that Iíd be out there on tubulars.
rosefarts is offline  
Old 05-11-24, 04:05 PM
  #33  
The Wheezing Geezer
 
Fredo76's Avatar
 
Join Date: Oct 2021
Location: EspaŮola, NM
Posts: 1,147

Bikes: 1976 Fredo Speciale, Rivendell Clem Smith Jr., Libertas mixte

Liked 1,035 Times in 491 Posts
In the modern parlance, I'm a 'fan' of technologies (and indeed, ways of thinking) from certain periods in our not-so-distant past.

Totally Tubular - Page 130 - Bike Forums

When I find my little frame bag, I plan to throw in a valve core remover and sealant, for redundancy in an emergency. And bring my phone. ;-)
Fredo76 is offline  
Old 05-11-24, 04:15 PM
  #34  
climber has-been
 
terrymorse's Avatar
 
Join Date: Dec 2004
Location: Palo Alto, CA
Posts: 7,345

Bikes: Scott Addict R1, Felt Z1

Liked 3,819 Times in 1,902 Posts
Originally Posted by squirtdad
I have not been able to to inflate slowly with Co2.... probably operator error. So for me I have ruled out CO2 for TPU.
Originally Posted by spinconn
Well, having not tried it I would be interested in the method you use to do it slowly. I assumed it would be out of your control once you pierce the seal.
I bought a CO₂ inflator made by Silca. It has a little dial valve that regulates the flow of the gas. Very easy to manage inflation rate.


__________________
Ride, Rest, Repeat. ROUVY: terrymorse



Last edited by terrymorse; 05-12-24 at 09:07 AM. Reason: spelling
terrymorse is offline  
Old 05-12-24, 05:22 AM
  #35  
Senior Member
 
indyfabz's Avatar
 
Join Date: Jan 2010
Posts: 39,733
Liked 16,180 Times in 7,598 Posts
Originally Posted by terrymorse
I bought a CO₂ inflator made by Silca. It has a little dial valve that regulates the flow of the gas. Very easy to mange inflation rate.

Thatís neat.
indyfabz is offline  
Old 05-12-24, 09:14 AM
  #36  
Senior Member
 
icemilkcoffee's Avatar
 
Join Date: Aug 2009
Posts: 2,560
Liked 1,891 Times in 1,052 Posts
In my experience CO2 works fine with TPU tubes. You donít have to fill it slowly or do anything different.
The only caveat is that it will leak out quicker than with butyl tubes. So make sure you empty it and pump it up again with regular air once you get home.
icemilkcoffee is offline  
Old 05-12-24, 05:32 PM
  #37  
Senior Member
 
rumrunn6's Avatar
 
Join Date: Jul 2008
Location: 25 miles northwest of Boston
Posts: 29,594

Bikes: Bottecchia Sprint, GT Timberline 29r, Marin Muirwoods 29er, Trek FX Alpha 7.0

Liked 3,612 Times in 2,360 Posts
Originally Posted by shelbyfv
^^^ You use an adapter then?
not sure this is worth circling back for, or if I understand the question. but w/ my Schrader valves I don't use pump adapters. the schraders fit everything I have, or come across. gas station pumps, the portable inflator in the car, the frame pumps & co inflator all fit w/o an adapter
rumrunn6 is offline  
Likes For rumrunn6:
Old 05-12-24, 05:39 PM
  #38  
Expired Member
 
shelbyfv's Avatar
 
Join Date: Jun 2007
Location: TN
Posts: 12,008
Liked 5,930 Times in 2,990 Posts
Nah, just another tubular confusion joke.
shelbyfv is offline  
Likes For shelbyfv:
Old 05-13-24, 11:02 AM
  #39  
Newbie
 
Join Date: May 2011
Posts: 10

Bikes: CharlesraP

Likes: 0
Liked 0 Times in 0 Posts
In general, I carry a small pump with me to handle any potential pressure leaks in tubular tires. I prefer to have a backup solution on hand during my rides.
AxxisPowers is offline  
Old 05-13-24, 11:06 AM
  #40  
Expired Member
 
shelbyfv's Avatar
 
Join Date: Jun 2007
Location: TN
Posts: 12,008
Liked 5,930 Times in 2,990 Posts
Originally Posted by AxxisPowers
In general, I carry a small pump with me to handle any potential pressure leaks in tubular tires. I prefer to have a backup solution on hand during my rides.
Spare tire as well?
shelbyfv is offline  
Old 05-14-24, 01:20 PM
  #41  
Newbie
 
Join Date: May 2011
Posts: 10

Bikes: CharlesraP

Likes: 0
Liked 0 Times in 0 Posts
Originally Posted by shelbyfv
Spare tire as well?
The spare tire, no, but if it's a longer ride, I'll take those tire patches.
AxxisPowers is offline  
Old 05-14-24, 03:52 PM
  #42  
Expired Member
 
shelbyfv's Avatar
 
Join Date: Jun 2007
Location: TN
Posts: 12,008
Liked 5,930 Times in 2,990 Posts
Originally Posted by AxxisPowers
In general, I carry a small pump with me to handle any potential pressure leaks in tubular tires. I prefer to have a backup solution on hand during my rides.
Originally Posted by shelbyfv
Spare tire as well?
Originally Posted by AxxisPowers
The spare tire, no, but if it's a longer ride, I'll take those tire patches.
You have some skills if you can do that on the side of the road! If I tried it would make for a very long ride. Or walk....
shelbyfv 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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Your Privacy Choices -

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.