Bicycle dual inner tube system

Step 4 Finishing off

Fit the other half of the tyre and fully inflate the partially inflated inner tube.
Painting the valve cap of the flattened inner tube will make it easier to identify.

Outro:
When you get a puncture - simply remove whatever caused it and fully deflate the tube. Then inflate the flattened tube and get yourself home. You may have to hold the valve stem of the punctured inner tube in place until the other is inflated enough to hold it there.

Things to consider - Drilling a hole in the rim will weaken it, ensure that the results of your drilling will be strong enough and avoid drilling directly opposite from the original hole creating a weakness accross the line of symetry.

see also -
For how to make your bike rust proof see
http://chrisblogforever.blogspot.com/2006/06/no-rust.html

Comments

[JustinsDIY]

i think This is a great idea! but what if a nail when completely thru both? i think a full proof system would be a dual inner tube system such as yours coupled with a seat belt lined on the inside inside of the tread. To me that sounds like an awesome peace of mind.

[2high]

It would be a cool Idea to make a ready made doubletube. would be a killer at the expeditions. Great work mayte!

[Wade Tarzia]

Great idea, and very well discussed! How long have you been doing this? Have you "tested to destruction" so to speak under natural conditions. This would have saved me changing tubes in the rain during my irish cycling/camping expeditions (Ireland is hard on tires). -- WT