Weight Weenies
* FAQ    * Search    * Trending Topics
* Login   * Register
HOME Listings Blog NEW Galleries NEW FAQ Contact About Impressum
It is currently Mon Dec 11, 2017 12:55 pm

All times are UTC+01:00





Post new topic  Reply to topic  [ 287 posts ]  Go to page Previous 113 14 15 16 1720 Next
Author Message
PostPosted: Tue Oct 31, 2017 6:17 pm 
Offline

Joined: Wed Mar 15, 2017 5:30 pm
Posts: 305
bm0p700f wrote:
Quote:
If you watch the GCN video on the Mavic UST road tubeless, the big point of the system is the ease of mounting /dismounting the tires (no tire levers required). That's the biggest beef with current tubeless systems. If you put some other brand of tire on a Mavic rim, you lose that main feature. Mavic tires have kevlar beads, stretchier than the carbon beads of other tires.

Time is going to tell on the mavic tyres. a stretchy bead is not normally a good thing with tubeless as it can cause some refttining issues. I am sure Mavic are aware of this and therefore the bead is not actually stretchy.

Why has using a tyre lever become so difficult? Cycling it self is quite a difficult thing and yet people can't cope with using a tyre lever anymore. I remember one night with a Pacenti SL23 V1 (not known for easy tyre fitting) and a schwalbe one tubeless that let me down my lever breaking when removing the tyre (or some other similar problem maybe I forgot them) and having to remove by hand fit the tube (as there was no choice) and remount the tyre by hand. I managed somehow even though it was a cold dark january night. This is an example of tyre that I dont think is much good as it let me down (literally) like clockwork.

Why does anyone want to take the tyre off and clean the sealant out. Mistake!!!!!!!!!!! a tubeless tyre is meant to be left installed for the life of the tyre. you remove it to replace it. the problem with tubeless is not the technology or the ease or difficulty of tyre fitting. It is simply end users making life hard for themselves.

yes presta valves get bent but if it breaks as they do sometimes then you simply put a new one in. Again where is exactly is the problem with that. all you need is a valve core and a valve core remover, it's easier than changing a inner tube.

Given I fit tubeless tyres every day with levers I would add, most of the time I can say it take no longer to fit the tyre than it does a clincher with tubes. What take the time is fitting the rim tape tape, fitting the valve, first inflation to seat the tyre, injecting the sealant and finally the second inflation to refinflate it after the sealant is added. Mavic'seasy UST system will not speed up the process as the tyre fitting time as it is already quick, and that with every tubeless tyre on almost every rim that I have tried. I think this is the real reason why it wont catch on as many of the problems identified in this thread are not problems in my eyes and in many cases are simply inexperience.

Although having tyres that mount by hand is nice so it is not unwelcome either.

Strangely I've had great experience with Pro Ones on V2 SL23s. Mounted by hand, inflated with a floor pump, haven't had any issues since.


Top
   
Posted: Tue Oct 31, 2017 6:17 pm 


Top
   
 
PostPosted: Tue Oct 31, 2017 8:41 pm 
Offline
User avatar

Joined: Thu Sep 21, 2006 8:54 pm
Posts: 1132
Location: Reading, UK
About the valves, valves for tubeless all feature replaceable valve cores. Having a few valve cores spare is a good idea.

The tubeless workshop does feature more tyre 'stuff' than with clinchers, on the other hand roadside bad experiences are greatly reduced. That's a deal I can live with.


Top
   
PostPosted: Tue Oct 31, 2017 9:04 pm 
Offline
in the industry

Joined: Sat May 12, 2012 7:25 pm
Posts: 3259
Location: Glermsford, Suffolk U.K
that is one thing the schwalbes are good at apart from letting me down is easy set up on near enough every rim I have tried them on. Thus demonstrating mavic new ust system is not actually that essential. Schwalbe have worked it out as have a variety of rim manufacturers.

Miller preicely. but the tubeless workshop actually has the same tools. A track pump, valve core remover, good flat tyre levers but the addition of soapy water and sealant. more than that is not normally needed. a compressor can be useful sometimes but the retailer of the wheel you buy should be able to tell you what tubeless tyres setup easily or not. if they cant find another retailer. I suppose I have an advantage of having played around with this for a few years now and have the pitfalls to avoid along the way.

_________________
www.thecycleclinic.co.uk


Top
   
PostPosted: Tue Oct 31, 2017 9:45 pm 
Offline

Joined: Tue Jul 26, 2016 5:21 pm
Posts: 139
morganb wrote:
jfranci3 wrote:
Ltyarbro42 wrote:

I have clean the orange seal off my rims using nothing but water and a paper towel. Exactly zero work. Do you worry about your tire vavles on your tubes? These are ridiculous arguments.

Ridiculous??
Presta valve stems get bent so easily. I go through 4-5 tubes/year, so the bad ones get cycled out. With tubeless, you're adding air every ride vs once/week and the stems stay installed. They need replacing every now and then.
On the sealant, the web is full of threads about what a PITA it is cleaning sealant out of tires. I haven't tried it yet.

My tubeless set ups lose air at the same rate as a butyl tube, if not slower.

Hmmm.... I lose 10psi / .5 bar every other day F& R. 6 -> 5.5bar on 25c Sch Ones, DT Swiss R32 AL rims, DT Swiss tape & stems, and Stan's goo. Maybe my valve stems aren't sealing enough.


Top
   
PostPosted: Tue Oct 31, 2017 10:07 pm 
Offline
User avatar

Joined: Thu Mar 31, 2016 9:54 pm
Posts: 145
jfranci3 wrote:
morganb wrote:
jfranci3 wrote:
Ltyarbro42 wrote:

I have clean the orange seal off my rims using nothing but water and a paper towel. Exactly zero work. Do you worry about your tire vavles on your tubes? These are ridiculous arguments.

Ridiculous??
Presta valve stems get bent so easily. I go through 4-5 tubes/year, so the bad ones get cycled out. With tubeless, you're adding air every ride vs once/week and the stems stay installed. They need replacing every now and then.
On the sealant, the web is full of threads about what a PITA it is cleaning sealant out of tires. I haven't tried it yet.

My tubeless set ups lose air at the same rate as a butyl tube, if not slower.

Hmmm.... I lose 10psi / .5 bar every other day F& R. 6 -> 5.5bar on 25c Sch Ones, DT Swiss R32 AL rims, DT Swiss tape & stems, and Stan's goo. Maybe my valve stems aren't sealing enough.

Stans is your problem IMO. Use Orange Seal and see how that goes.

My tubeless setup loses about the same amount of air as a standard butyl tube setup, and far less than lightweight thin walled tubes or latex.


Top
   
PostPosted: Tue Oct 31, 2017 11:56 pm 
Offline

Joined: Wed Mar 15, 2017 5:30 pm
Posts: 305
I'm also using Orange Seal by the way.


Top
   
PostPosted: Wed Nov 01, 2017 1:00 am 
Offline
in the industry

Joined: Sat May 12, 2012 7:25 pm
Posts: 3259
Location: Glermsford, Suffolk U.K
the leak will be the valve or the taping perhaps the hole in the tape at the valve is too big. I loose little air in mine. The issue wont be the brand of selant you are using. Some tyres also loose more air than others byt 10 psi a day is alot. This is normally the cause one that is elimated you are left with the tyre/rim.

_________________
www.thecycleclinic.co.uk


Top
   
PostPosted: Wed Nov 01, 2017 1:28 am 
Offline

Joined: Mon Jul 24, 2017 12:02 pm
Posts: 490
morganb wrote:
My tubeless set ups lose air at the same rate as a butyl tube, if not slower.


I’d say my tubeless setups lose air at about twice the rate of a light butyl tube like a Conti Race Light 28. About 3psi a day vs 1.5psi. I have never bent a Presta valve core. Also replacement valve cores are cheap enough that I wouldn’t care if I did anyway. What a non-argument.

http://www.jensonusa.com/Kenda-Presta-Valve-Cores


Top
   
PostPosted: Wed Nov 01, 2017 1:12 pm 
Offline

Joined: Sun Oct 08, 2017 1:58 am
Posts: 31
Giant's Youtube channel has some tubeless-specific videos, including what to do if you get a large gash in your tyre. Just glue a patch on the outside of the tyre:

https://youtu.be/g6E-33WlYvI?t=31s


I imagine that would make for a bumpy ride home.


Top
   
PostPosted: Wed Nov 01, 2017 1:46 pm 
Offline
User avatar

Joined: Thu Sep 21, 2006 8:54 pm
Posts: 1132
Location: Reading, UK
Stickman wrote:
Giant's Youtube channel has some tubeless-specific videos, including what to do if you get a large gash in your tyre. Just glue a patch on the outside of the tyre:


Interesting. They're basically supergluing a bit of tyre carcass to the outside. I've never considered that as a solution, maybe I should. What has caused me grief on a few mainly offroad situations is a sidewall slash, I wonder if it would work for that as a get-you-home fix.


Top
   
PostPosted: Thu Nov 02, 2017 5:03 pm 
Offline

Joined: Tue Jul 26, 2016 5:21 pm
Posts: 139
Went for a ride in the wet today. Got a pin hole size puncture in the center of the tire that never fully sealed. To the sealant's credit, I got about 3-4min of riding/stopped before the tire was down too far. I hadn't re-goo'd the tire in 2mo and it seemed like there was plenty of juice, as I'd see the occasional bit come out. Do you suppose it was just too wet?


Top
   
PostPosted: Thu Nov 02, 2017 6:39 pm 
Offline

Joined: Fri Oct 13, 2017 11:25 am
Posts: 50
Location: Cambridge UK
jfranci3 wrote:
Went for a ride in the wet today. Got a pin hole size puncture in the center of the tire that never fully sealed. To the sealant's credit, I got about 3-4min of riding/stopped before the tire was down too far. I hadn't re-goo'd the tire in 2mo and it seemed like there was plenty of juice, as I'd see the occasional bit come out. Do you suppose it was just too wet?


which brand of sealant are you using?

_________________
Giant TCR
Canyon Endurace AL
1981 Koga Miyata Full Pro


Top
   
PostPosted: Thu Nov 02, 2017 6:39 pm 
Offline

Joined: Fri Oct 13, 2017 11:25 am
Posts: 50
Location: Cambridge UK
jfranci3 wrote:
Went for a ride in the wet today. Got a pin hole size puncture in the center of the tire that never fully sealed. To the sealant's credit, I got about 3-4min of riding/stopped before the tire was down too far. I hadn't re-goo'd the tire in 2mo and it seemed like there was plenty of juice, as I'd see the occasional bit come out. Do you suppose it was just too wet?


double post

_________________
Giant TCR
Canyon Endurace AL
1981 Koga Miyata Full Pro


Top
   
PostPosted: Thu Nov 02, 2017 8:40 pm 
Offline

Joined: Mon Jul 24, 2017 12:02 pm
Posts: 490
A wet road shouldn't have any effect on a tire's ability to seal. What makes something like Orange Seal solidify is the pressure forcing it through a tiny hole. Water won't just seep in when it's 80psi vs atmospheric pressure. If you want to try it yourself, poke a hole in a tire while it's submerged in a tub. I bet you it will actually seal faster because of the effective pressure inside vs outside will be in the Goldilocks zone.


Top
   
PostPosted: Thu Nov 02, 2017 9:44 pm 
Offline

Joined: Tue Jul 26, 2016 5:21 pm
Posts: 139
It was Stans goo. I tried putting it down, up, spinning it, etc. It was a tiny hole that wouldn't seal. Will go with Orange come spring.


Top
   
Posted: Thu Nov 02, 2017 9:44 pm 


Top
   
 
Display posts from previous:  Sort by  
Post new topic  Reply to topic  [ 287 posts ]  Go to page Previous 113 14 15 16 1720 Next

   Similar Topics   Author   Replies   Views   Last post 
There are no new unread posts for this topic. Help plz. Searching for skin wall /white tubeless tires

in Road

YoungjaeChoi

4

625

Tue Jan 17, 2017 7:50 pm

shimmeD View the latest post

There are no new unread posts for this topic. Attachment(s) Suppple Road Tubeless?

[ Go to page: 1 2 ]

in Road

possibleweenie

20

1806

Fri Sep 01, 2017 3:19 pm

jfranci3 View the latest post

There are no new unread posts for this topic. Track event: Low end slick tires or higher end road ?

in Road

LouisN

10

1028

Mon Oct 23, 2017 7:36 am

Marin View the latest post

There are no new unread posts for this topic. 3T Strada aero road bike is made for wide tires and 1×12 drivetrains

[ Go to page: 112 13 14 15 16 ]

in Road

KarlC

230

21721

Fri Dec 01, 2017 5:09 am

TonyM View the latest post

There are no new unread posts for this topic. The "pro's ride it, therefore it must be good" argument. Discuss

[ Go to page: 13 4 5 6 7 ]

in Road

zappafile123

91

8476

Sun Nov 26, 2017 10:33 am

tarmackev View the latest post


All times are UTC+01:00


Who is online

Users browsing this forum: coriordan, Google Adsense [Bot], jacobeh, jbentley, jdw and 39 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB® Forum Software © phpBB Limited