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Conference noted::bicycle

Title: Bicycling
Notice:Bicycling for Fun
Moderator:JAMIN::WASSER
Created:Mon Apr 14 1986
Last Modified:Fri Jun 06 1997
Last Successful Update:Fri Jun 06 1997
Number of topics:3214
Total number of notes:31946

1580.0. "gluing sew-up tires" by JUPITR::BARWISE () Thu Jun 07 1990 13:51

    I'm looking for words and techniques of wisdom from you experienced
    tubular tire users out there. Everytime I need to glue one on a rim,
    I inevitably make a mess and I'm never completely satisfied with the
    outcome. I must be basically doing the right thing because I never had
    one come off while riding but I find the process messy and time-
    consuming. I like the weight and ride of tubulars so I don't have an
    overwhelming desire to switch to clichers except for the gluing
    process. I find the area around the valve stem particularly hard to
    seat well. Has anyone got a good process you wouldn't mind sharing?
    
    Thanks!
    
    rob
T.RTitleUserPersonal
Name		DateLines
1580.1Shave first!TPWEST::SHROYERThu Jun 07 1990 20:1217
                     <<< Note 1580.0 by JUPITR::BARWISE >>>
                            -< gluing sew-up tires >-

	There are several notes on this.  I think the classic is the one by
Matt Johnson.  If you have tried to glue on a few already, then you'll
appreciate Matt's comments. 

	The three most important tips:

1. Pre-stretch the tire

2. Use a tooth brush (maybe you should use an old one) to spread out the glue. 
   
3. Shave your legs, arms, dog and anything else that is hairy before you 
   start.  Otherwise, it gets very painful.

	Good luck.
1580.2Oh Vittoria, I'm stuck on you........IDEFIX::HEMMINGSLanterne RougeFri Jun 08 1990 06:4316
1.......... and lock up the cats......

Ours seem to find that everywhere they want to go takes them behind the bikes
along by the chain - I hate to think what would happen with a newly-coated
sprint rim.

2. Don't take any notice of anyone who suggests putting the glue on the tub.

I tried to put a brand-new Clement training tub on this way when I started
back in 19.. (censored).  I couldn't get off the hooks for 3 weeks.

3. Look at the valve hole in the rim.  There are lots of combinations of rim
and tub where the valve will NEVER sit properly.

Stick at it.... :>)
1580.3FEW MORE SUGGESTIONSAKOV11::FULLERFri Jun 08 1990 09:3012
    Better made ties, ie: Victoria, Clement, tend to be easier to mount.
    I remember attempting to mount some circa 1975 Japanese tubulars that
    were impossible.
    
    Let the glue tack up for an hour or two before mounting.
    
    Add about 30 lbs of air then center the tire before it sets
    
    If possible, use aged tubulars for longer life
    
    steve
1580.4shave the cats tooMAYA01::ROBFri Jun 08 1990 10:0714
    
    
    I'm happy to hear I'm not the only one! The toothbrush idea is a good
    one. I will look for that classic note mentioned in .1 
    I am using Vittoria tubs but I don't remember having this much trouble
    before with Wolbers or others. I inflate slightly to center them and then
    I deflate them to dry so the edges stay in contact with the rim edges.
    Even after letting them dry for 12 hours, one edge tends to lift. I
    wish the rims had a slight depression or channel down the middle to
    accomodate the bulge caused by the stitching.
    
    rob                                                    
    the rims had a slight depression down the middle to accomodate the 
    buldge ca
1580.5NOVA::FISHERDictionary is not.Fri Jun 08 1990 10:323
    170.0 is a Hall of Famer.
    
    ed
1580.6SANDS::CRITZWho&#039;ll win the TdF in 1990?Fri Jun 08 1990 10:5710
    	I've never ridden on tubs, and now I know why.
    
    	I couldn't now, anyway, after reading 170.0. If
    	I tried to glue a tub on, I'd eventually start
    	thinking about the note, and then burst into
    	uncontrolled laughter.
    
    	And I don't want to shave my arms! 8-)>
    
    	Scott
1580.7Do the tire, then the glueSCAM::DIALFri Jun 08 1990 14:1021
    It isn't sane to put the glue on the rim before the tire!  Here is the
    method I used when I rode tubs.
    
    1. Inflate the tire off the rim to stretch it.
    
    2. Mount it on the rim (This assumes you've removed the old tire)
    
    3. Put some air in the tire (maybe 10-20 lbs).
    
    4. Roll a section of the tire off the edge of the rim, enough to get
       the glue onto the rim.
    
    5. Go to the next section and repeat step 4.
    
    6. Let the glue set up overnight.
    
    7. Go for a ride.
    
    8. Remove punctured tire mounted in steps 1-5.
    
    This is why I ride clinchers now.  8-)
1580.8BANZAI::FISHERDictionary is not.Fri Jun 08 1990 14:177
    re:.7
    
    1.5  Deflate after tire has stretched.
    
    :-)
    
    ed
1580.9WAV13::DELORIEATime to make the jerseysFri Jun 08 1990 17:3833


* Put glue on rim and let dry over night.

* Mount tire on rim DRY no glue on it.

* Pump it up to max inflation and leave it over night.

* Put on the oldest clothes or clothes you got for Xmas and hate as well as a
  pair of "glue" sneakers. If you don't have any glue sneakers you soon will.
 
* Remove tire and put a thin film of glue on tire and rim and let dry for 1/2
  hr.

* Put rim upright on a clean smooth suface with the valve hole at the top of
  the wheel.

* Insert valve into valve hole and grab tire and push it on the rim as well as
  pushing down at the same time this will help stretch the tire while putting
  it on. (Try it w/o glue first)

* To get the last few inches onto the rim...... Well if you were pushing 
  down on the tire when you started it would just slip right onto the rim.

>Tooth brush for spreading glue

Very good idea. To me spreading the glue around is the worst part.

Tom 

PS PERFORMANCE now sells an inexpensive tubular for $8.95  Now that is worth 
checking out if you like to ride on tub's on the time. I USED to.  $$$