Professional software for customizing and matching tennis rackets


Calculate weight distribution to the millimeter and customize your frame.
Free, online and without registration
Want to increase thrust or control? Calculate exactly how many grams of lead to add and at exactly what point on the plate (12 o'clock, 3/9 o'clock, etc.) to achieve the behavior you desire.
Have you bought two identical racquets but they feel different on the court? Enter your data into the tool and find out where to adjust them to make them perfectly matched in terms of weight and balance.
Monitor how your frame's swingweight changes as you make changes, eliminating the need for trial and error. Keep track of your changes using the app's integrated customer database.

The software gives you the calculations. Inertia X1 gives you the precision.
To make the most of InertiaRT's algorithms, the app needs accurate input data: weight, balance and, most importantly, thethe real Swingweight.
If you enter approximate data or the standard data declared by the factory (which often vary by ±7 grams), the tuning calculations will be distorted.
With the toolInertia X1, you can measure the exact inertia of your racket in seconds directly at home or at your club.
It is the perfect companion for this software
Are you ready for your calculations? ➔Launch the Free Inertia RT Tool
Do you want the measuring tool?Buy your Inertia X1 now
