Just Cuz Robotics Dartbox V2 Dragon Gearmotors 22mm


One of the Most powerful off-the-shelf 22mm gearmotors for Beetleweights, period.

The Just Cuz Robotics Dartbox V2 Dragon Gearmotors 22mm are here! These are a pro-quality motor that is an incredible choice for your beetleweight if you truly need the most power and torque. If you are a serious competitor, you simply must try them!

We’ve been looking for the perfect 22mm beetleweight gearmotor for a long time. And we’ve admired builder/designer Seth Schaffer and the great business he’s built with Just ‘Cuz Robotics. He’s the kind of entrepreneur we like to partner with here at ItGresa Robotics.

The core of the DartBox V2 is a custom, all-metal 22mm diameter planetary gearbox with a square ring gear. While DartBox V1 got the name by using dart blaster mod motors, V2 now uses totally custom motors with even more amazing performance. With a solid steel 4mm and 6mm diameter 24mm long D shaft, and 100% steel gear train, you won’t have to worry about mulching a plastic geared stage, and you get the added durability of a planetary gear reduction, unlike with some cheaper gearbox options.

Unlike sensorless brushless motors often used for drive applications, brushed motors give you 100% torque from 0 RPM every single time. These motors will pull a ton of current when stalled, producing immense stall torque. Only use DartBox with a suitable current-rated Brushed ESC

Remember Spiderman? “With great power comes great responsibility”? With powerful motors like these, you must make sure that you have an ESC that can supply the right current without browning out. Here are our recommendations for ESC:

The Just Cuz Robotics Dartbox V2 family of Gearmotors 22mm are generally designed for Beetleweight (3lb) combat bots. Beetleweights are one of the most common competitive combat bot weight classes. They are a great combination of action, access to a high number of events, stunning destructive power, and simplicity- for the intermediate or even beginning robot builder. As the sport evolves, Beetleweights are becoming more prevalent, better engineered, and significantly more destructive. And while the garden variety motors have been good for the time, we believe these motors are more durable and able to withstand the rigors of the ring better.

We’d love it if you would support Just ‘Cuz! So check out the Dartbox family of professional-quality motors!

Important note:

Available in 4mm and 6mm shafts!

Product Documents


Just Cuz Robotics Dartbox V2 Dragon Gearmotors 22mm Features:

  • Dragon Motors are about 50% more powerful than Viper Motors.
  • 24mm motor shaft allows you to cut to length to improve versatility.
  • Solid Steel 4mm or 6mm shaft allows you to balance weight vs strength to survive larger impacts and yet meet weight.
  • All metal 22mm planetary gearbox with a square rign gear and 100% steel gear train.
  • Brushed motors give you 100% torque from 0 RPM every single time.
  • Comes ready for combat on any 3lb bot design.

Type 4mm 6mm
Motor Speed, 12V/3S 35000 RPM 35000 RPM
Speed, 12V/3S 1550 RPM 1550 RPM
Speed, 4S ~2000 RPM ~2000 RPM
Gear Ratio 22.5:1 22.5:1
Output Shaft Style D-shaft D-shaft
Motor Type Brushed DC Brushed DC
Stall Torque (Drive) @17.7A 167 oz/ft 115 oz/ft
Gear Material Metal Metal
Gearbox Style Planetary Planetary
Connector Type Male Spade Terminal Male Spade Terminal
Weight 57g 59.3g
Gearbox Length: 19.4mm 19.4mm
Motor Length: 27.1mm 27.1mm
Total Length: 46.5mm from face 46.5mm from face
Dartbox Diameter: 22mm 22mm
Shaft Diameter: 4mm 6mm
Shaft Length: 24mm 24mm
Mounting Holes (4): Screw face mount 18mm circle Screw face mount 18mm circle
Mounting screw M2 M2

ItGresa Robotics is proud to support the builder community by offering and marketing their products. Just ‘Cuz Robotics has quickly become known for both incredible product innovation and technical support for the community through their great videos. We are proud to be one of the very first distributors to partner with them and help bring their incredible products to a broader market.