Patching tubes with old bicycle tubes

User avatar
mikesbytes
Super Mod
Super Mod
Posts: 16681
Joined: Thu Dec 01, 2005 11:42 pm
Location: Tempe, Sydney
Contact:

Patching tubes with old bicycle tubes

Postby mikesbytes » Fri Nov 21, 2008 11:53 am

I want to have a go at patching tubes with bits of old bicycle tubes. Has anyone done this? Does anyone know how its done?
If the R-1 rule is broken, what happens to N+1?

User avatar
sogood
Posts: 17152
Joined: Thu Aug 31, 2006 7:31 am
Location: Sydney AU
Contact:

Re: Patching tubes with old bicycle tubes

Postby sogood » Fri Nov 21, 2008 12:07 pm

mikesbytes wrote:I want to have a go at patching tubes with bits of old bicycle tubes. Has anyone done this? Does anyone know how its done?

Never done it myself but have seen road side mechanics do it in Beijing. Cut the old tube into round patches and shave the edges so that they smooth down to the tube being repaired. Stick them on!
Bianchi, Ridley, Montague, GT, Garmin and All things Apple :)
RK wrote:And that is Wikipedia - I can write my own definition.

r2160
Posts: 1181
Joined: Tue Jul 01, 2008 4:01 pm
Location: Bass Hill, NSW

Postby r2160 » Fri Nov 21, 2008 2:57 pm

What glue would you use with that?

cheers
Glenn
-----------
"Pain is temporary. It may last a minute, or an hour, or a day, or a year, but eventually it will subside and something else will take its place. If I quit, however, it lasts forever" Lance Armstrong

User avatar
sogood
Posts: 17152
Joined: Thu Aug 31, 2006 7:31 am
Location: Sydney AU
Contact:

Postby sogood » Fri Nov 21, 2008 3:40 pm

Try the same we use for conventional patches. Just apply on both sides. I have seen what looked to be contact adhesive being used ie. Yellow tinted goo.
Bianchi, Ridley, Montague, GT, Garmin and All things Apple :)
RK wrote:And that is Wikipedia - I can write my own definition.

User avatar
mikesbytes
Super Mod
Super Mod
Posts: 16681
Joined: Thu Dec 01, 2005 11:42 pm
Location: Tempe, Sydney
Contact:

Postby mikesbytes » Fri Nov 21, 2008 7:25 pm

Yellow tinted goo might be some sort of vulcanising glue, ie it dissolves slightly into the rubber
If the R-1 rule is broken, what happens to N+1?

User avatar
eucryphia
Posts: 335
Joined: Sun Feb 03, 2008 7:05 pm
Location: Queanbeyan

Postby eucryphia » Fri Nov 21, 2008 7:43 pm

It works fine on my tubes, I use the small tubes of glue from any LBS, none have failed so far.

I went back to the thin patches as I didn't know how they would last.

I cut the patches slightly bigger than a 5c piece,
rough the tube,
apply the glue,
spread it by rubbing the tube and the patch together to get a full even coverage,
let the glue dry a bit,
then clamp overnight with a $1 spring clamp I bought at the local hardware. (Googled image, mine actually have grip pads which pivot on pins and grip flat at any opening width)

I've solved 90% of my puncturing with higher spec commuter tyres.

Image

fixie
Posts: 283
Joined: Tue Jun 17, 2008 9:08 pm

Postby fixie » Fri Nov 21, 2008 9:22 pm

It works. What was seen in Beijing is correct. The glue is the same rubber cement we normally use. Just comes in a can. Allow both surfaces to dry to the tack stage then join. No special clamps required. Do not try and inflate without a tyre outside. With a tyre on and inflated the tyre and tyrepressure act as a clamp. Been doing it for a very long time when I can be bothered or there is nothing better to hand.

Warning :!: If you are repairing singles and using latex tubes/patches, the glue will attack the latex and cause it to curl up. Keep the glue layer very very thin, and restrain the patch from curling up.

User avatar
Kid_Carbine
Posts: 1297
Joined: Tue Aug 14, 2007 11:35 pm
Location: Southern Highlands N.S.W.

Postby Kid_Carbine » Sat Nov 22, 2008 3:41 am

An old trick when actually applying the patch is to place the patched portion of the tube on a hard surface, patch uppermost, [table, bench, knee will do] then use the spoon end of a tyre lever & firmly rub over the patch itself as if you were trying to push out air bubbles in the glue.
Start from the center & work outward, then just go nuts rubbing the patch with a firm pressure. I have never had a patch fail to stick properly after that.
Carbine & SJH cycles, & Quicksilver BMX
Now that's AUSTRALIAN to the core.

Who is online

Users browsing this forum: No registered users