- In case of requiring high gear ratio that cannot be generated by single gearbox
- Frame Size: 80/90mm
- 80mm gear ratio 10:1 (8XD10GG/GW)
- 90mm gear ratio 10:1
(9XD10GG/GW/GP/GH/GZ)-40W
(9XD10PP/PW/PH/PZ)-60W∼120W