Still on original wheels on my 3 and 1/2 year old 2020, running tubeless. Rims have numerous dings but no problem with sealing. I had a spoke break once but didn't even notice until I was checking the bike, spoke change etc quick and easy. changed the bearings once and was delighted with the...
I carry a Stan's DART (Dual Action Repair for Tubeless). It has a kind of chimney sweep's brush with a barb for positive engagement to plug the hole, and a coating that reacts with ammonia sealent (e.g. Stans) to bond it all together. Not cheap, but the one time I have used it was to seal a...
Don't think you have. Sometimes my Blast, same thing, isn't enough so I like to have a few more tools in the box. But there way, of you're using latex sealant, like STAN'S, STAN'S DART is great for fixing flats.
This has been discussed loads of times. In brief, you can use a CO2 canister but STAN'S advises letting all the CO2 out and replacing with air (less than 1% CO2, I believe). Hot tip is to seat the tyre using a tube, pop one side, replace tube with valve and carry on. STAN'S is latex by the way...
The other advantage with a low stack height dropper, is that getting on and off the bike and setting off is much safer and easier. I have a 180 One up on a medium Levo at max insertion, and wee legs - it's perfect.