TWO FLATS ARRGGHHHHHH

[ShanDog]

So I just did a 25km ride in roughly 1 hour. It was a leisurly ride (because of the flatness not the effort) from thompsons corner down the m2 to delhi road and back again. Get this, I had two flats, count them two flats, on the same tyre.

It turns out that one of my old pinch flats had left a tiny ding in the rim about 2mm long but had left a tiny metal spike that slowly dug through the tread and into the tube. I think a little sand paper will solve the problem (if anyone thinks i should just get a new rim let me know, I'd rather not be at risk of an accident but the ding is really tiny). On the brighter side of things, I can now change a tyre in about two mins flat not including pumping time!!! woohoo go me!!

[europa]

What with you and your brother providing you with work on the bikes you'll be the resident expert soon.

As for the ding, file it down and see what happens. The rim could be cracked but probably not. Wouldn't hurt to start looking at rims and wheels though, that way, if you find you do need to make a change, you've got your homework done but to be honest, I don't think you'll need it.

Richard

[mikesbytes]

More than one flat on a ride does happen. Thats why we carry patches.

[531db]

'More than one flat on a ride does happen'

Thats why I carry 3 spare tubes.....

However I rarely have more than one puncture on a ride, and I rarely have punctures. I always have a good look to see why the puncture occurred in the first place and remove any glass, metal or other cause before reinstalling a fresh tube.

Hoping I have'nt jinxed myself by mentioning the 'p' word......

[europa]

Hoping I have'nt jinxed myself by mentioning the 'p' word......

[Mulger bill]

Had one this arvo

Damn broken glass always seems to find any gaps in a tread

[amattinson]

Had 3 punctures today and had to get rescued by the wife. I was trying for a 200km week but that got shot by the puncture monkey. I think my tubes are all getting to the point of disposal. Someone else has mentioned the 3 strikes rule for tubes and based on my experiences recently (puncture every ride) I'll go with the rule and buy tubes in bulk.

[mikesbytes]

Had 3 punctures today and had to get rescued by the wife. I was trying for a 200km week but that got shot by the puncture monkey. I think my tubes are all getting to the point of disposal. Someone else has mentioned the 3 strikes rule for tubes and based on my experiences recently (puncture every ride) I'll go with the rule and buy tubes in bulk.

This is why I carry patches and know how to apply them correctly. One spare is all I need.

[Mulger bill]

This is why I carry patches and know how to apply them correctly. One spare is all I need.

How many patches before you bin the tube?

[mikesbytes]

This is why I carry patches and know how to apply them correctly. One spare is all I need.

How many patches before you bin the tube?

Don't really have a rule. If the tyre looks old, it get binned, even if it has zero patches.

[AUbicycles]

Yep... I love the old "sharp rim that punctures tyres" trick. It got me before as well.... after 500 metres when the tube goes down again something fishy is happening.

In your rims, make sure you have the rubber / table over the spokes and check that the spokes are not poking through. Check for debris that may have slipped into the rim and finally check for damage and sharp edges to the side of the rim.

Spare bits of rubber or cloth or even a patch can be stuck on top of rough areas of the rim if you don't have a file handy. Sometimes even a rock can be (gently) used to file back a rim if it is a bit sharp as a temporary measure.

[europa]

And be careful about running your fingers around inside a tyre looking for sharp things - you'll find them but the blood makes putting the tyre back on a messy business

[Mulger bill]

And be careful about running your fingers around inside a tyre looking for sharp things - you'll find them but the blood makes putting the tyre back on a messy business

Owww yeah! First look happens with gloves on.

[tuco]

I just joined this elite group of two punctures on one ride.
Luckily (if you can call a second puncture luck) the second was only 300 metres from home.

Same wheel in the same position. The first was a safety pin and the second was broken glass.

[scottyj]

I live in Cairns where every roundabout is an obstacle course. My latest record was 4 flats in 24 hours. After this I took the advice of lbs and "double tyred" my rear wheel. Basically, this involved cutting off the wire and most of the sidewall from an old tyre and putting it inside a new one. Seems to work fine and no punctures yet.