Originally Posted by
Wilfred Laurier
This is not true. 'Rolling resistance', the energy lost to tire casing flex as you ride, is less for wider tires, if comparing otherwise identical tires.
It is not exactly true. It is less for wider tires
AT THE SAME PRESSURE but wider tires
AT THE SAME PRESSURE will not be any more comfortable, and if you reduce the pressure then your rolling resistance benefit is lost - unlike tire weight penalty.