Originally Posted by
Elvo
A typical butyl mtb tube weighs ~180g. A valve stem weighs about 10g. And at most you would add maybe 100g of sealant (which is quite a bit).
The Schwalbe SV14 tube weighs 108g and works great in my 26x2.1" tires. Stan's recommends 3-4oz of sealant for a MTB tire. 3.5oz = 103g. Add the 10g valve stem and now you're heavier than a tube. Some sealant brands recommend more.
Originally Posted by
base2
FWIW:The decision to go tubeless isn't primarily about weight as much as it is about rolling resistance.
Weight discussions while valid, are sort of adjacent to tubeless' primary design objective. That being reducing the drag coefficient between tire & road.
There is no need to guess. Tubeless is not faster. It's been tested.
https://www.renehersecycles.com/myth...s-roll-faster/