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Kit shock setup. Part numbers link to AMain.
Out of the box the GT4R-1 runs 900 cst front, 900 cst rear, on 6 x 1.2mm (#007-612) front, 6 x 1.2mm (#007-612) rear pistons. That is the kit setup; you will need to adjust it for your track conditions. The RC Setup App can help dial it in.
The kit springs are 3.5lb Orange (#023-002) front, 3.5lb Orange (#023-002) rear. Stiffer springs suit high grip and big jumps; softer springs add grip on slick or bumpy tracks.
Free to start · iOS & Android
Your WIRC GT4R-1 is in the RC Setup App
Save every setup change you make to your WIRC GT4R-1, get AI tuning answers for that exact car, and log your races — at the track or back in the pits.

