Hi,

I searched up this topic because I'm just about to get my tri bike out (is the T word allowed here?) and am having sadly familiar problems with the UST Mavic wheels. Wheel went flat just after changing the cassette (!)
Just thought I'd add my experience to the mix.
I don't tend to ride on the tri bike on the road much. Bit of turbo training to get used to the position. Occasional circuit to see how fit I am.
Most mileage is done on my Worx CX bike: separate road and CX wheels - both with tubes. Much more fun to ride.
So why did I go for tubeless on the tri bike? Thinking was that any flat on a triathlon event is pretty much bound to ruin your day. And to be fair I've never had a flat on an event.
But.
Tubeless doesn't really seem to suit infrequent use. I mean the tyres need inflating every few weeks. And they seem to go flat randomly. After changing a cassette!? Which isn't terribly reassuring. And they aren't cheap to maintain. I just ordered two new valves - £9 each!

Quick question: Does the rim tape degrade with time? One failed on mine shortly after buying them. Phil Corely were great and sorted it out for me. Been ok since. If I'm resealing them should I change the tape?