GRK5-R GRK-R Idler Spacer for repair 1mm (2 Pieces) [Shibata] R31S123

This is a 1mm thick idler spacer used in the GRK-R/GRK5-R gear components.

It can also be used as a replacement part for the (R31S024) integrated axle shaft .
*This product page shows two 1mm thick

In the GRK5R kit manual, this part is listed as Part No. 6-2.