Casandra

Awesome to be able to watch this on youtube! I wish they would show more Marathons or Stage Races.

I'm carrying an Eclipse tube from Switzerland (not sure if they're still in business). The 29er is 60gr. only. I'm using those as spare for almost 10 years now. They cost around 50 EUR, but are 8 times more resistant against thorns - which if you're running tubeless you might have plenty of them in your tire and a normal tube will get punctured right away. I don't know why not everyone is using them, I just replaced mine once in those 10 years - because I switched from 26" to 29" wheels. Even if you get a puncture, they come with patches that work really well, so you basically can use that tube for many years and at the end it's way cheaper than standard tubes and the low weight and small size are so convenient, as you can carry them in your pocket.

I have his 2009 worlds frame :)