Dual 775 Sport Ratio: 156:1
The Dual 775 Sport is the latest innovation in the competition tested high performance line of planetary gearboxes from AndyMark and BaneBots. The Dual 775 Sport gearbox features a fully enclosed 52:16 (3.25:1) spur gear reduction before the planetary input giving you additional reduction in the same length required to combine the two motors. This could save you a stage of reduction in the planetary gears to achieve a similar rpm. The input pinion to the spur gearbox is the same as the input pinion for the planetary gearbox meaning you can swap back and forth with ease.