700x28-42 w/ 60mm weight is 103g for those interested. This shaved off 55 grams from stock specialized tubes from gravel bike. Great tubes, easy to install. Provides more comfortable ride than stock tubes.

Best tubes

29x1.75-2.4 Weight is approx 150 grams Talc powder is a little much, but so far so good. Shaved off about 95 grams each tube from stock Specialized tubes.

They are talced, they are are lighter, they are for road bikes, BUT the top eighth to quarter inch of the stem has no teeth on it, so beware that you could have a CO2 inflator, or tire pump blow off the end, potentially wasting a CO2 cartridge, and losing the adapter. Als, obviously, adapters that heve to thread on are not going to work. The local bike shop stopped carrying the 'red box' tubes because of that feature. They aren't horrible, you just have to know what to expect using them. I do like them, but couldn't they fix that stem threading issue?

Super

Purched for my MTB SWAT seat hold for emergency repair tube! Fits nicely and of course very lit!

I wish I could write to say awesome great these Tubes are! But unfortunately, these are supposed to be Specialized best racing tubes but they are not any good! Poor quality! Always problems with this tube. The turbo tube does not last long. There are to many factory defects! New Tubes that leak or blow out!!! Presta valve issues too! Slow air leaks constantly. Specialized needs to step up the quality of this tube!! Too many issues. Going on a ride? You better take two!!

I started using these tubes last year and it seemed to reduced the amount of flats. I also like that they have come with talc.

It fits in the swat box, which is why I bought it

Purchased to pair with my S-Works Turbo Tires. They're lightweight and easy to install, however one of the tubes arrived with a pin hole in the middle of the seam, so it would not hold air. I needed to use the tube for a ride and it was too much of a hassle to return, so I just patched it and now just deal with the slow leak. I can't recommend due to QC issues.