philly1x wrote:
marcag wrote:
philly1x wrote:
Warbird wrote:
For GP4Ks that measured 26mm on my wheelsWhat results did you get when running tubeless on hookless at <60psi?
Just over 4watt (at 40km/h) penalty with a 28mm tire
You didn't do that with a GP4k tire, which was released in 2007—before road hookless tubeless, before testing to validate wider (eg, 28mm) tires offers lower CdA and Crr—and 19mm-23mm tires were a thing.
And you also previously wrote about using 26mm, right?
I'm just pointing out that comparing apples to oranges does not work in this instance.
You are right, we did not test a GP4k
We did test 25 to 30mm, lots of 28
We tested hooked, hookless
We tested older inner widths and more modern (22, 23..)
We tested ok, good and bad roads
We tested cycling pros, tri pros, tiny women and big big men.
To what I thought was your question, running tubeless on hookless < 60PSI was never optimal unless on the really roughs roads.
Testing is believing :-)