BEAST MODE RC Gear Ratio & Speed Calculator 🏁 Dial in your setup like a pro. Every pass counts.

Take the guesswork out of your gearing with this powerful, easy-to-use calculator built for RC drag racers. Input your setup—pinion, spur, tire size, motor KV, voltage—and get instant calculations for:

✅ Final Drive Ratio ✅ Rollout (in/rev) ✅ Estimated Top Speed (MPH & ft/s) ✅ Motor RPM ✅ 60' and 132' ET Estimates ✅ Average G-Force

💻 Built in Excel & Google Sheets 🧠 Beginner friendly with a built-in Quick Start guide 📥 Instant download – no shipping, no waiting