6mm motor + gearbox. 5.25:1 gear ratio - 0.25 mod gears. 4.5Ohm Motor. 1mm shaft. Long motor leads 6cm and terminated with our .05 pin connector. Good for props measuring 4 - 6 inches. Pulls about 200mA or so - depends on the load a bit. 2.29 grams total weight

6mm motor + gearbox. 5.78:1 gear ratio - 0.25 mod gears. 4 Ohm Rosy Motor. 1mm shaft. Terminated with our .05 pin connector. Good for props measuring 4 - 6 inches. Pulls about 200mA or so - depends on the load a bit. 2.6 gm total weight.

4mm 13 ohm motor + gearbox. 5:1 Gearbox Reduction. 0.2 mod gears. Draws about 150mA with the 3233 CF prop attached. Weight with motor is 0.86 grams excluding prop adapter and prop. GB05 includes a prop adapter but no prop.

These are great little workhorses, the same motor used in the GB03 and GB04 gearboxes. These motors have long 60mm leads for easy installation. 1mm shaft, weight 1.34gm, 6mm diameter 4.5Ohm coreless motor.

7mm coreless motor, available in 1.7ohm and 3.3ohm. These are great little motors, direct replacements for the SS Blue (1.7ohm) and SS Orange (3.3ohm). They have a micro connector pre-installed. These motors have long 60mm leads for easy installation. 1mm shaft. 2.9gm.

100x80 Prop for 1mm shaft - Black. Great for use on the GB03 gearbox. The prop is bored with a 0.98mm shaft hole. The weight is 0.85 gm.

Carbon Fibre Propeller. Weight is 0.2g. Good match for GB05 gearbox.

This prop works quite well on the 7mm coreless motor. It has a 1mm hub hole and is included with the Micro Racer Starter Set.

57x20 (mm) prop with 1mm ID hub. Suitable for use with the 7mm 3.3ohm motor as a quiet direct drive propulsion unit.