Cube stereo hybrid 140 hpa pro 500 e bikecubes stereo hybrid hpa 275 has turned out to be one of the most popular full suspension e bikes with cycling magazines and websites its completely changed the face of e mountain biking since cube introduced it the reason for this is as trivial as it is obvious its an e bike that rides in a strikingly similar way to a conventional mtb more so than any other e mtb framecube treated the stereo hybrid hpa 140 pro to a frame upgrade using tuned dri