Hey Alberto,
Yes, we could develop a gearset to use this motor, but currently we think it will be better to develop motor options for our new V4 Drive.
For people who have a preference for Hacker motors, we are going to try one of Hacker's Turnado helicopter motors. These motors weight 345g, so there is a weight savings over the Hacker C50 motor, and I think this weight is going to comparable with the Hacker C54. Also, there is an added benefit in that the Turnado motor is cheaper as well.
We are also working on options that use a Plettenberg motor, and a Neu motor too. Both of which should be as light, or lighter.
Brenner ...