Gradient sro is a Czech aircraft manufacturer based in Prague and founded in 1997.

The company specializes in the design and manufacture of paragliders in the form of ready-to-fly aircraft.

[2] The company has produced a wide range of paragliders, including the intermediate sport Aspen, the Avax competition wing, the two-place tandem BiOnyx, the intermediate performance Bliss, the beginner and flight training Bright and the intermediate Golden[1] The company has ceased publishing performance specifications for its gliders, stating: Gradient has decided to end the rat-race in publishing of performance data.

The rubbery nature of these figures makes it impossible to obtain or prove them with any acceptable degree of accuracy.

We don't feel it is fair publishing any figures in the absence of fixed standards for recording of performance data in this industry.