Best latex tube - which one?

Discuss light weight issues concerning road bikes & parts.
fdegrove
Tubbie Guru
Posts: 5851
Joined: Tue May 03, 2005 2:20 am
Location: Belgium

by fdegrove

Hi,

Latex has very low hysteresis, and butyl very high. Making a butyl tube very thin will certainly help reduce the losses, but even a thick latex tube has close to zero.


Exactly.
Latex is so much more supple than butyl it will always show lower rolling resistance and as a side effect (so to speak) will lower puncture risk as well due to its ability to conform around an object.
Latex inner tubes can have a very high lifetime, can be patched as easily as butyl, can weigh about 40% less and increase comfort as well. Ask anyone that rides decent tubulars, comfort contributes to efficiency no end.

The better latex inner tubes are invariably the unpigmented ones as the addition of pigment reduces the flexibility of the material no end.

Want a great tyre? Forget about anti-puncture belts, go silk casing with high tpi count and a fine latex inner tube.
I'm pretty sure it won't puncture that easily and will be way faster and lighter than anything else out there.

Anything else is just plain marketing bullshit really.

Ciao, ;)
Being a snob is an expensive hobby.

User avatar
WMW
in the industry
Posts: 855
Joined: Sun Jul 29, 2012 2:59 pm
Location: Ruidoso, NM

by WMW

I bought some Vred latex tubes 6 years ago. Turns out they were thick heavy ones... like 100g. I'm still using them on the TT bike.

IME latex patches more easily than butyl. I uses pieces of an old tube and Elmers rubber cement.
formerly rruff...

by Weenie


dereksmalls
Posts: 1975
Joined: Tue Aug 02, 2011 9:20 pm
Location: New Zealand

by dereksmalls

WMW wrote:I bought some Vred latex tubes 6 years ago. Turns out they were thick heavy ones... like 100g. I'm still using them on the TT bike.

IME latex patches more easily than butyl. I uses pieces of an old tube and Elmers rubber cement.


Are they creamy natural pigment or black? Were the Vred latex tubes natural pigement even six years ago? All of the ones I have bought are natural pigement and weighed no more than 50g each so I think you may have got ripped there. 100g sure ain't latex

User avatar
WMW
in the industry
Posts: 855
Joined: Sun Jul 29, 2012 2:59 pm
Location: Ruidoso, NM

by WMW

Natural color. Definitely latex. I checked them for Crr today and it's as low as the thin latex. Both are ~25% less resistance than a 90g butyl tube in a 23mm Supersonic.
formerly rruff...

nayr497
Posts: 145
Joined: Mon Jul 27, 2009 6:55 pm
Location: North Carolina, USA

by nayr497

Good to know the Vredestein tubes work just fine in 24 or 25 mm tires. I'm using mine with 23s right now but would like to try some 25mms next time I need new tires.

Mine are the unpigmented ones, got them for about $10 each shipped from UK to U.S. Not stocked in my LBSs.
A good day becomes a better day with a bicycle ride.

nickf
Posts: 535
Joined: Sat Mar 06, 2010 10:34 pm

by nickf

I have been running verds with veloflex tires for a few months now. I was running mich tubes for about a year. But i now prefer the verds. They are a few grams lighter. The mich tubes seem more susceptible to flats. My only complaint with the verds is that they do stretch out a bit and dont exactly fit when you go to re install them. I get a bunch of excess tube that has to be crammed into the tire. I did ride the rouge roubaix this year with some verds and gatorskin 25s. 104 miles of pavement and gravel.

mattyb95
Posts: 128
Joined: Fri Aug 10, 2012 11:54 am

by mattyb95

I was switching my tyres as I have a long sportive coming up and had been puncturing quite a bit recently on my Vittoria tyres so changing to GP4000s. The Vredestein tubes had indentations on the rim side when I took them out. Is that normal for latex?

User avatar
djconnel
Posts: 7926
Joined: Wed Sep 26, 2007 1:57 pm
Location: San Francisco, CA
Contact:

by djconnel

Yes.

User avatar
carbonLORD
in the industry
Posts: 394
Joined: Fri Jan 23, 2004 6:31 pm
Contact:

by carbonLORD

With Conti making 50g rubber tubes, why would anyone be interested in Latex$$$?
carbonLORD.com

styrrell
Posts: 167
Joined: Mon Apr 19, 2010 10:33 pm

by styrrell

Latex offers lower rolling resistance. That due to its properties not its weight. A tire wioth a heavier latex tube will be faster than a tire with a lighter butyl tube.

User avatar
carbonLORD
in the industry
Posts: 394
Joined: Fri Jan 23, 2004 6:31 pm
Contact:

by carbonLORD

Not compelling enough but thanks for the reasoning. I have low enough rolling resistance using wider Zipp and Enve clinchers so I'll count my blessings.
carbonLORD.com

Imaking20
Posts: 1466
Joined: Fri Nov 18, 2011 5:19 am

by Imaking20

So don't use latex.


Those conti tubes won't ride as nice
Current:
T2

Retired:
Blue | Project C6.0 | Felt AR FRD | Colnago C59 NERO | 2014 S-Works Tarmac | S-Works Venge | Wilier Cento Uno SL | Tarmac SL2

fdegrove
Tubbie Guru
Posts: 5851
Joined: Tue May 03, 2005 2:20 am
Location: Belgium

by fdegrove

Hi,

carbonLORD wrote:With Conti making 50g rubber tubes, why would anyone be interested in Latex$$$?


Have you really thought this through?

Oh, I see, you're in the industry. I assume that's the same industry that's after everyone's money?

Enjoy as many flats as you can muster, ;)

Ciao, ;)
Being a snob is an expensive hobby.

User avatar
WMW
in the industry
Posts: 855
Joined: Sun Jul 29, 2012 2:59 pm
Location: Ruidoso, NM

by WMW

carbonLORD wrote:Not compelling enough but thanks for the reasoning. I have low enough rolling resistance using wider Zipp and Enve clinchers so I'll count my blessings.


Rims don't lower rolling resistance...
formerly rruff...

Tom-s
Posts: 144
Joined: Sat Apr 26, 2008 10:44 pm
Location: Holland/Belgium

by Tom-s


by Weenie


Post Reply
  • Similar Topics
    Replies
    Views
    Last post