EVO-R conversion chassis set

This is a conversion chassis set compatible with (GRKGS2E) GRK GS2 EVO and (GS2MOD) GRK GS2 Modified.
This is an advanced model that requires customization such as changing the gear adapter and other adjustments to fit your existing chassis setup.

●Features:
Developed as the first motor layout model inspired by the GRK4/5 within the GRK Global Series lineup, this chassis set takes GRK’s renowned balance of rigidity and precision to the next level.
The 2.5mm main chassis and 3mm upper deck are made from the same high-performance carbon material used in the GRK5R HRP model, which claimed victory at the 2025 SDC Championship in the U.S.
While maintaining compatibility with the standard mechanical layout, the design has been optimized for today’s RWD drift scene, achieving the ideal balance between roll rigidity and lightweight performance.

*If you are installing a GRK-R unit(GRKRCV) that changes to the same upper motor style as the GRK5-R, this chassis set (R31S119) is required.

●Important Notes:
Installation Note;(For users upgrading from GS2EVO or GS2MOD)

*Gear Adapter & Bevel Gear
The gear adapter and bevel gear specifications differ from the GRK Global Series.
Please replace them with GRK4/5 compatible parts, 
(R31S067) GRK5 Gear Adapter
(R31S069) GRK5 Bevel Gear 14T

*Battery Holder

The battery holder that comes standard with the GS2EVO and GS2MOD can be installed, but it does not allow the battery to be positioned in the optimal location.
To achieve the correct battery position, please use the (R31S035) separate battery holder.
Alternatively, if you install the GRK-R unit (GRKRCV) at the same time to convert to an upper motor mount layout, the required battery plate is included, so there is no need to prepare a separate battery plate.

●Additional Information

*Differential Unit
Depending on the bevel gear selected, a differential unit may be required regarding backlash.
(R31G001) Ball Differential Unit
(R31W271) Gear Differential Unit

*Compatible Components
Supports installation of (R31S333) GRK5 Steering Rack Unit
Compatible with center servo layout using (R31S057) 2-Way Aluminum Servo Mount (when combined with R31S333)
Designed to fit the GRK-R Gear Components, scheduled for future re-release