Review on Schwalbe XXLight Bicycle Tube 1 5 2 35 by Will Kern

I've got 800 miles on the pair without a single seal. Many of these kilometers are on gravel, dirt or country roads and muddy roadsides. They're surprisingly light, measuring just over a quarter in diameter (if space is an issue for you). I weigh 200 pounds and the bike and load is 32, I keep 60psi front and 65psi rear for good softness. a ride that still avoids pinching flats. (The tires I use are rated for 55-70psi.) I've had to fill them up less than once a month. The only reason I'm shooting a star is because they are double the price of other cameras.