When Wisper were fairly new to the market I asked them why their original model had not been reviewed in AtoB. Their reply was to the effect that they had offered a bike but AtoB were too busy. However, practically all the major new bikes, ( Gazelle, Pro Connect, Nano Brompton, Cytronex etc) have been the subject of a test report soon after their arrival. Wisper are conspicuous by their absence. If they have confidence in their product - as I'm sure they have - it is something they should be trying to resolve. The choice of a new electric bike is something we all want to get right, and being able to compare the reports in AtoB can have a big influence on our decisions.