Large-scale On-road Cars
Find setups and tuning guides for on-road cars 1/5 scale and larger. Learn how to adjust ride height, camber, caster, track, and roll center to get your ride dialed in and flying around the track
Best Gear Calculator App
Calculate your ratio, FDR, pill insert geometry, corner weights, and more!
Reference Charts
AI Feedback on Your Setup
Talk with an AI Mechanic that actually knows your car's exact setup, anytime, anywhere.
Setup Guides & Articles
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Setup guide
Brushless Motor Tuning for RC Racing: The Four Knobs Explained
How to tune RC brushless motors for racing — rotor, mechanical timing, ESC boost and turbo, gearing — and how to keep the motor cool. The physics behind every knob, in plain English.
Maintenance guide
How to Charge RC LiPo Batteries: A Beginner's Guide
Everything a new RC racer needs to know about charging LiPo batteries safely — first-charge walkthrough, balance charging, storage, and the four mistakes that kill packs fast.
Maintenance guide
LiPo Charging for RC Racers: What the Science Actually Says
A grounded guide for racers who've already read three LiPo guides — what the chemistry actually says, and what's just folklore.
