Expensive, tedious but massively rewarding tire-within-a-tire system
Reviews: Components > Inner Tubes
Super-light 29er inner tube
Michelin DH Racing Tube
Vittoria Inner Tube Pack Of 5
Puncture protection, as long as you don't put a hole in the sidewall
Self-healing inner tubes are not a new idea, but they've tended to be on the weighty side and blow-outs used to mean a very sticky mess. But the Eclipse could solve all of that.