Find, manage, and share setups right on your phone, complete with race log, setup tips, troubleshooting, and gear ratio calculator. Upgrade to Sportsman for the Race Log and more features that'll save you time at the track.

Calculate your ratio, your final drive ratio (FDR), and rollout, and see exactly how much of a difference a gear change will make.

Log your speed runs with gearing info, motor, battery, weather, and more. Share your best runs with other Speed Run drivers!

Find the right pinion gear for your RC car, with the magic of AI!

Get a quick, easy estimate for how fast your RC car can go at top speed

Easily calculate your anti-squat, toe, roll center, and track width with this full suspension geometry calculator. Supports most popular cars.

Calculate your mileage and see averages over time, so you never run out of nitro again!

Score crawls easily on your phone, no paper needed. Customize scoring categories for club meets. Includes SORRCA scale point calculator.