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[Simmo1796]

Can anyone help, I recently had to but a new inner tube for my trek hybrid, I took the exact measurement details from the inner to my local bike shop which were 700x35/40c I was sold 700x35/43c and told this would be ok. When cycling home approx 3 weeks later the inner popped (loud bang) I took the inner tube back to the shop and they told me that the inner may have been trapped in rim of the tyre causing an egg in the tyre which has caused the inner to burst. They have agreed to replace the inner and fit it free of charge. When I got home I have noticed that my tyre also has a large tear in it, the same tyre that had the blow out. I have phoned the shop today and they say that this is unlikely to have been caused by the inner popping. Can someone please give me some advice on this?

 

[Alien8]

As the minimum for both inner tubes is 35c using 700x35/43c should be fine - although I guess it would be slightly more prone to catching the inner tube between rim and tyre when fitting.

Did you fit the inner tube yourself - I assume not as they have offered to replace it?

Maybe the tyre split was the cause of the inner tube popping - not the other way around.

I think they would have to be a very nice LBS to replace tube and tyre FOC.

 

[Simmo1796]

I fitted the inner tube myself, but very annoyed when the tube burst, 2am in the morn on way home from work. Had to walk 2 miles in freezing conditions! Well im waiting for a call back from the manager of the shop, so heres hoping! Thanks for the reply Alien8

 

[Amanda P]

I'd agree that it's unlikely the tube bursting caused the tyre to tear. It's much, much more likely that the tear in the tyre caused the tube to burst, or that the two are unrelated.

A tear big enough to allow this to happen was probably caused by broken glass. It happens easily.

Yes, a wrecked tube at 2 in the morning would be very annoying, and no matter how lovely the bike shop folk are, it could happen again. I would recommend buying at least one more spare tube from them and always carrying it - you never know when it's going to happen.

If you need to replace the tyre (and it sounds like you might need to) I'd also recommend that, before you throw the old one away, cut a bit about 6" long out of it. Cut along just inside the wire bead on each side and across the tread so that you have a rectangle of tyre. What you now have is a tyre boot. If you get a badly damaged tyre in future, you can use this boot inside the damaged section of the tyre to stop the tube bulging out through a split or tear and bursting all over again.

 

[chillyuk]

If you can blag a new tyre and tube from the bike shop then they are worthy and deserving of your custom in future. You need to look after a shop like that.

Whatever happens, when you get your tyre sorted make sure it is pumped up hard. I use 700x35's and keep them at about 60lbs.

 

[Banjo]

Before inflating you need to go round both rims pushing the tyre in to look and check you havent trapped a bit of tube under the rim.

I think the blowout wouldnt have damaged the tyre more likely to be the other way round.

 

[Simmo1796]

Thanks for the replys guys, inparticular the sound advice from Uncle Phil regards the tyre boot, never would of thought of that, cheers.