Review on 🚴 DMLNN 28 700x18-25C Road Bike Inner Tubes Presta Valve 48mm/60mm/80mm for 700c x 18, 23, and 25 Tires - Includes 4 Tubes and 2 Tire Levers by Josh Allred

Excellent whistles. They're strong, don't lose air overnight, and have long enough valve stems to accommodate almost any rim. The price is very good. But they are heavy. They weigh 131 g, high-quality whistles weigh 68 g, sometimes a little less. On a road bike that costs $1,500, for example, you won't notice any difference. (I'm not saying $1,500 is chicken feed, but sadly, premium products have hit the stratosphere these days.) If you're riding a really expensive road bike, even if you're ramming 120 pounds of tires, the bike will feel sluggish. The photo above shows a light tube on the left and a DMLNN 28 700x18-25C on the right.