Depends on which X2? I run the Monkey with yellow shumacher mini spikes and blue inserts on rear and narrow yellow schumacher mini spike on the fronts. Associated factory shocks with blue springs front and silvers rear with 30wt oil all round. I now also run HPI Blitz front c hubs and axles which make the track 10mm narrower and it was fine. They fitted straight on too which is a bonus.
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