On Monday, January 16, 2017 at 11:03:05 AM UTC-8, Joerg wrote:
On 2017-01-16 10:43, David Scheidt wrote:
Joerg wrote:

:Yup. Standard bicycle tubes are usually junk. Would you accept it if you
:had to pump up the tires of your car every two weeks? Yet most cyclists
:think this is "normal".

Automotive tires have a much lower ratio of surface area to volume
than bike tires. They're also run a lower pressure, for the most
part.


Truck tires are often operated around 50psi or higher. Like my MTB tires
are.

A truck tire weights as a much as TWO UCI minimum race bikes -- or one DH bike. Now throw in the rim. You have peculiar expectations for bicycles. You're theoretically perfect bike would weigh about 250lbs.

-- Jay Beattie.