Why is everyone ignoring inertia? Within the same chain size family, an O ring or X ring chain will always be more weight. All the pins have to be longer which equals more mass/weight.
To change inertia, work is required, and work = HP in drag racing. This is a separate factor than the friction between seal devices, X or O.
Doesn't the chain dyno measure HP after it has attained speed and overcome inertial effects?
Given the same HP output, a lighter bike will be faster than a heavier one in acceleration, as less weight allows a faster change of inertia with the same work input.
In this case, the Ring type chains add inertial weight to chain movement during acceleration as well as to the overall bike's total weight.
About X ring chains:
I thought the x ring chains were developed so they would offer LESS friction while bending, as they apply less less side pressure to accomplish the same sealing job to be accomplished. Is there another reason for the x ring introduction?
This is again a physics principle. The seal contact points are on a longer pressure applying arm than a oring contact, so they apply less pressure to the side plates.
Cheers,
