GRK45-R Upper Deck Set (UKW-G45RUD)

To all GRK5 and GRK4

The GRK5-R conversion kit (GRK5RCV) can now be installed.

We will take all GRKs to the next stage.

*The following parts are required for installation (sold separately).

For GRK4, (R31S032) High-precision machined racing spur gear 48P/76T

• (GRK5RCV) GRK5-R Conversion Kit