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Gear Ratio Calculator

Dial in your pinion and spur in seconds — free, with rollout and FDR.

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AI Feedback on Your Setup

Talk with an AI Mechanic that actually knows your car's exact setup, anytime, anywhere.

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Free to start · iOS & Android

Setup App & Race Log

Your XRAY XB8 '24 Pivot Ball is in the RC Setup App

Save every setup change you make to your XRAY XB8 '24 Pivot Ball, get AI tuning answers for that exact car, and log your races — at the track or back in the pits.

  • Setup Tracking
  • AI Mechanic answers
  • Find & Share Setups
  • Race Log
  • Gear Ratio Calculator
  • Free to use
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