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4-Speed High Power Gearbox HE - Tamiya 72007 No reviews yet Rating: none Availability: In Stock Retail: $19.99 Price: $9.78 Tamiya Tamiya Item #: 0-72007 - Four gear ratio options give you the flexibility to choose the best speed and torque for your project. The Tamiya 72007 4-Speed High-Power Gearbox kit includes one brushed DC motor and all the gears and parts to build any of the four possible gear ratio configurations: 39.6:1, 47.6:1, 61.7:1, 74:1.... [more info...]

4-Speed Worm Gearbox HE - Tamiya 72008 No reviews yet Rating: none Availability: In Stock Retail: $19.99 Price: $9.78 Tamiya Tamiya Item #: 0-TAM72008 - The Tamiya 72008 4-Speed Worm Gearbox kit includes one brushed DC motor and all the gears and parts to build any of the four possible gear ratio configurations. The Tamiya 72008 4-Speed Worm Gearbox kit includes one brushed DC motor and all the gears and parts to build any of the four possible gear ratio configurations: 84:1, 216:1, 555.4:1, 1428.2:1. The... [more info...]