Light, cheap, no problems
I've had these tubes on for about 100 miles and still no problems. I wouldn't call them "ultralite" as advertised, i think some tubes go for less than 95g but they are light enough. They hold air well and are sturdy enough for NYC streets. I'll be purchasing another couple of tubes if I they keep me rolling over 500 miles. They're from Vittoria so you can't go wrong.