Their findings show that every tire ever tested over the last 5 years is faster with a latex tube. How much faster? On average you can save about 2.5 – 3.5 watts per wheel or 5 – 7 watts per bike at
Products I recommend: Latex Tubes | Burnham Coaching
Won't help if you are running lousy tires but latex tubes in a handmade, supple casing is almost as good as riding Clement Seta 220's from the old days.