Re: Gazelle question - tubeless?
Actually, it is a good question. If you have mag wheels and tubeless tires (i.e. gazelles), why wouldn't you just install motorcycle tubeless tire valves in the rim and run without a tube...? You could also plug a flat in an emergency (I don't recommend that). I did that on my old FX Harley--3 years without leaks, and the rims said "tube tires only." I may try tubeless on my moped.