splitting inner tubes
I've got a problem with inner tubes that have effected both my bikes. Being cursed as the most unluckiest person for punctures, (I'm pretty much guaranteed to get one very time I go out) means that my tyres are constantly being taken off. What seems to happen now is I'll be riding along an my inner tubes will split by the valve rendering the tube useless. It started on my hardtaill which were schrader valve tubes and you can see that the tube is being twisted round as the valve is at 45degree angle. After awhile it twisted so much it splits. I bought new tyres and it seemed to stop it. It's now happening to my other bike which are presta valve and the tubes are splitting again. Buying new tyres may solve the problem but my tyres are no way near the end of their life and I can't afford to keep buying new tyres. Has this happend to anyone before, and is there a way to fix it cheaply?