The new brass suspension blocks for the ARC R12 are useful option parts to adjust and fine-tune the weight distribution while maintaining low CG.

Total 4 types of brass blocks with weight increase of 5.5g for R123011 (FF), 6.5g for R123012 (FR), 4.0g for R113200 (RF), and 5.5g for R123013 (RR). The full set of brass blocks increases a total of 21.5g for the R12.