who here knows there front and rear counterweight sizes to match? a link would be great. i have a pair of rx4 rotors minus a set of counterwieghts , can i use any pair and have them balanced ?

 

The counter weights are keyed to the rotor weight. Also were the Eshaft has the three lightening holes in the throw for the rotor. So, call Racing Beat or Mazdatrix and ask your question. They can tell you if your weights can be used or supply a new set to go with your balance job.
They may want your Eshaft as well.

Lynn E. Hanover