Never ever used but rated 10 for surface marks.

135g, the shaft is 11.95-11.98mm dia.

Designed for the Audiomods Series V.

I have never used this counterweight. It has a fine adjustment.

Asking $75 shipped anywhere in the world. Jeff's new one costs $120.

"if you want, change the mass of the original weights because that lead centre is 4 separate discs. If you do need to do that I can send different length screws."

Details on page 5 of the Classic manual

I can get Jeff to send screws to buyer.