then,
ill stay with rollers.....just lighter and stiffer central spring....
thanks
I see no big added value of sliders, but might try to put them back in later (I have ordered a pulley blocking tool but I am not sure will it fit because it is for 50 cc GY6s).
There is another issue. I wonder if, as the time goes, the ramp (groove) where the rollers roll/sliders slide might get a bit worn, just so much that some of the rollers/sliders get stuck in upper positions... or that tolerances are not that tight and some grooves are a bit larger/deeper and some are not.
This might explain why some of the roller weights get worn more easily. For example, whenever you tear apart vario, you will notice that 1, 2 or 3 rollers have flat spots while others look like new. In case of this specific A125, it is two rollers, and two sliders too.
I also think that story about longevity of sliders is exaggerated and theoretically, they probably do increase both acceleration and top speed marginally because they close the gap better, but in real life, there are so many things that might prevent this (state of the ramps, plate, tolerances etc.)
This is not exact science, and everybody should try what suits him best.
Now I have the problem of the belt. Where do I buy it and avoid paying 60 US$ for it?