W-3S app for iPhone and iPad

Find the perfect saddle for you!
You need only three steps for define perfect saddle match. In less than one minute.
1 - put in W-3S app the anatomic data. The app will calculate BMI in automatic way.
2 - sit on flex towel. Thanks to 256 pressure sensors and to wiva sensor connect via bluetooth to the app, the system will measure instantly the ischial bones distance. This measure is mandatory for define saddle width.
3 - Remove Wiva sensor from towel and put it on L5 . Execute a frontal flex of the trunk for measure the pelvis tilt . This measure is very important for define saddle form.

Thanks to this informations and a very complete data base with more than 1000 saddles you will can find the perfect saddle.