Hello, anyone knows where i can fina variatorkit /cluthkit  for my cfmoto c force 550? Weights and feather for tuning.

Your primary is a cvtech trailbloc. They use weights in the sliders along with a spring. You can change the metal disks to add or remove weight. Cvtech offers all sorts of springs and weights to fit your needs. As far as what to use I'm not going to be much help. I haven't seen someone do the testing to figure out what combination works best for the cfmoto 550. Maybe someone can chime in with more or better yet, give some info on where to start with spring and weight selection.

Ye i know, do you know where i can find how much the original weights weight?

Just pop the weights out of the sliders and weigh them. I haven't seen what the factory is.