Fixing Punctures / Puncture Repair / Exploding Tubes

vulcinisation solution is not a glue in the tradional snese of something to act as a bond beteween two items.

i.e:

material1-glue-material2

It actually loosens up the rubber pollymers to a certain extent and then allows the polleymers to inter twine. Hence why you need to let the solution "go off" before you put the patch on. Then the polymers mix up together again and the bond is formed between the two materials as they mix up. That's the way I understand it to work.

(′vəl·kə·nə′zā·shən)
(chemical engineering) A chemical reaction of sulfur (or other vulcanizing agent) with rubber or plastic to cause cross-linking of the polymer chains; it increases strength and resiliency of the polymer. Also known as cure. ]

sulphide bonds just like in protein matrices.

please expand or post a good link.

This just popped up in a RCUK email, one for Hippy: http://www.roadcyclinguk.com/maintenance/save-your-vulcanising-solution/5424.html

i have just finished building my fixed gear and have been rolling 4 about a week. i keep getting little snake bite like punctures but only on the back rim. am i doing something wrong when installing. or am i rideing to hard on it ? iv been through like 5 tubes and its taking the piss any suggestions

i have checked the wheel for dodgy bits but cant see anything out of place

Pressure too low. You're too fat. Not unweighting the rear of the bike when riding over potholes or curbs or whatever you kids are doing these days.

Either you have a viper hidden in your wheel or there is a lack of adequate pressure

Though google could have told you this if you had enough intelligence to use it

Shutup James.

i pump up to the indicated 120psi regularly, James

rimtape?

^ what he said. I had a mare of a day fixing flats because my rim tape didn't cover one of the spoke holes properly, popped about 4 tubes before realising. I just put a few layers of electrical tape over the rim tape and it seems alright now.

my rimtape seems ok not to sure what i would be looking 4 tho :)

yh sounds about right thair is a small hole in my rimtape above 1 of the spokes. ill try the electrical tape fix, ta

^ what he said. I had a mare of a day fixing flats because my rim tape didn't cover one of the spoke holes properly, popped about 4 tubes before realising. I just put a few layers of electrical tape over the rim tape and it seems alright now.

you mean you couldn't find pink fluoro rim tape? :)

Rimtape punctures will look like a little star, not like snake bites.

but who would be offended by it?

^no one...I quite like seeing colourful rimtape when I get a puncture, small things etc...

Maybe you're installing them wrong...the tube could be getting pinched between the tyre and the rim if it isn't seated properly. Although if this was the case I would expect the punctures to fire off sooner. I've never had this problem, and I'm a shit mechanic, so maybe these thread lurkers can help you.

cbass, citron, col has been fixed, dancing james, Doktor P., kboy

Your tyre pressure is too low or you are banging it into pot hole or curbs. Tyre pressure should be ~ 100 psi for 23 mm tyres, if it's already at theat you just need to improve your riding.

oliverhale123, are you a fan of spam email or something?

Do you use levers to get the tyre back on the rim?

lol,
no i use some park tools levers to get it off,
the insulation tape over the rim tape seems to have worked ok so far, iv cycled about 10 miles this evening and seems ok.
might come downstairs tomorrow and it will be flat lol.
and im workin on avoiding the potholes and transferring my huge 80kg body weight onto the front wheel

I think the problem would be down to the shit cheep rim tape that came with the wheels.

Are you talking about two holes on opposite sides of the tube or a single hole on the inner part of the tube?

single hole on the inner part, sorry i think i caused some confusion
im a bit of a noob

Changing a flat should be simple. Alas it appears I can't do it right.

Recently I have twice had the tube bubble out from between the rim edge and tire thread and go pop mid ride. It looks like I have done it right, but the first I notice is when I'm out riding and for a few seconds before it goes pop the ride feels a little lumpy.

Is it parts failure or maybe I need tips and proper tools (more than a couple of levers) to properly change a flat on this rim/tire combo.

back on forum for first time in ages, do go easy on the inevitable jokes around changing tires and lumpy rides