Cycling and bicycle discussion forums. 
   Click here to join our community Log in to access your Control Panel  


Go Back   > >

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.

User Tag List

Reply
 
Thread Tools Search this Thread
Old 01-13-08, 04:43 PM   #1
Drakonchik
Senior Member
Thread Starter
 
Drakonchik's Avatar
 
Join Date: Dec 2005
Location: Pacific Northwest
Bikes:
Posts: 733
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Butyl vs. Latex Tubes - Different Feel in Your Hand?

Can a person tell from the feel of the raw rubber between your fingers whether an inner tube is made from butyl or latex rubber?

I'd like to know for purposes of recovering used inner tubes from salvaged bikes. Inner tubes from fairly ancient bikes can be amazingly well preserved. And yes, believe it or not, old tubes especially latex can be sold on various venues for old bikes parts to folks who want authentic parts, etc.

Anybody out there got the knack for distinguishing the two rubber types?
Drakonchik is offline   Reply With Quote
Old 01-13-08, 05:30 PM   #2
lmzimmer
Senior Member
 
Join Date: Aug 2004
Bikes:
Posts: 198
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I have not seen a latex tube for many years. When I rode sew up tires they were lates and the tubes were light colored (not black). They were very thin and supple compared to butyl tubes
lmzimmer is offline   Reply With Quote
Old 01-13-08, 06:54 PM   #3
Mach42
Senior Member
 
Join Date: Sep 2005
Location: Salt Lake City, UT
Bikes: 2005 Scattante R660 Triple, 2006 Specialized Rockhopper Comp Disc
Posts: 643
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I've seen them at my local shop. They look like they're made from surgical glove material, either off-white or greenish.
Mach42 is offline   Reply With Quote
Old 01-13-08, 07:45 PM   #4
teamcompi
Senior Member
 
teamcompi's Avatar
 
Join Date: Sep 2006
Location: Houston B.C.
Bikes:
Posts: 271
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thinner, (usually), ligher in weight and color (usually), and I break into hives if I am around latex, but that wont help you much. Often old ones would be brownish red or tan in color, I have seen some new ones which were green but I do not remember black. I am sure one can get really smooth butyl but latex is smooth, I do not remember all the seams in latex tubes like you seem to get in butyl but I could be wrong. Have you checked the guru of all things bike aka Sheldon Brown, he likely has a essay on the topic.
teamcompi is offline   Reply With Quote
Old 01-13-08, 07:57 PM   #5
J T CUNNINGHAM
Senior Member
 
Join Date: Nov 2006
Location: TORONTO , ONT , CA
Bikes: '86 AMBROSI / C RECORD. PINARELLO MONTELLO / FRAME, FORK.
Posts: 813
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
To change the subject just a tad . . .

Does anyone know of/about polyurathane tubes?

Frank J Berto, in is 1988 tome 'Upgrading Your Bicycle',

mentioned these to be '. . . the hot new tube material.'


Regards,
J T
J T CUNNINGHAM is offline   Reply With Quote
Old 01-13-08, 08:01 PM   #6
SPlKE 
Senior Member
 
Join Date: Sep 2007
Bikes:
Posts: 830
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
I like the feel of butyl.

It's subtle, though, and I can't absolutely be sure I'm not imagining it. ;-)

I have ridden performance lunar lights for a few years. Feather light. Be careful when changing -- easy to tear butyl.
SPlKE is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

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



All times are GMT -6. The time now is 09:15 AM.