I guess I found a bug in the SliderComponent. If you use animateToValue(0) or animateToValue(100), the knob animates to the wrong position. It adds the radius of the knob. Just drag the know below value 25 or over 75 to see the effect. http://share.framerjs.com/m13i7y1l7vmz/
As a bonus: how could I read the value during the animateToValue?