Lightweight, Durable, Battle Proven Drive Motors Price shown is for one (1) motor + gearbox assembled. V2 4mm CAD is available here. Plus, 6mm Upgrade kits are now available! DartBox V2 22mm Gearmotors are lightweight, but not as durable as our newer Pro 24mm options. If you want better durability and reliability, check out our Blitz Pro and DartBox Pro gearmotors with super strong hardened steel 6mm shafts! Built for 3lb “Beetleweight” combat robots, and plenty of other applications.Need replacement 4mm shafts? Look here! Powerful ESCs are a must-have. The best option is the new WEKA Dual 20A ESC! Other options will also work such as Tarakan Dual ESC (2 drive sides), Scorpion CL dual ESC (2 drive sides), or BBB Beetleweight ESCs. As of September 2025, the 6mm shaft versions of these motors are not being restocked, but 6mm shaft upgrade kits will remain available. High-strength gears are also for sale here. Click Here for a great comparison chart showing the differences between all available drive motors and gearboxes from Just 'Cuz Robotics! If you want some quick and reliable connections for your motors, we recommend pairing these with our breakout PCBs and JST Connectors. Note, the front plate is different for 6mm, you cannot simply buy 4mm replacement shafts for a 6mm motor and vice versa. To swap between them, you need a standard 4mm motor and a 6mm upgrade kit. Pair with our 6mm shaft upgrade, motor PCBs, custom aluminum mount plates and 12mm hex hubs. Usage Info and Specs 2X Viper motors can be used with any 3 lb bots, while Dragon motors offer 50% more power for super-fast box rush acceleration, more pushing power, and higher speed at the same torque! These motors will work for heavier non-combat robots as well. Not recommended for direct drive on bots effectively 6 lbs and up - belted or geared is preferred. If you mount a wheel directly to the shaft of these motors, make sure to cut the shaft so it doesn’t stick out! Direct hits to a shaft are the easiest way to break a motor! Specs for Drive: Weight (Drive): 54.5 grams (1.92 oz) with Viper 4mm Shaft 56.8 grams (2.00 oz) with Viper 6mm Shaft Upgrade 57.0 grams (2.01 oz) with Dragon 4mm Shaft 59.3 grams (2.09 oz) with Dragon 6mm Shaft Upgrade 32 grams (1.13 oz) for bare DartBox Drive gearbox Speed (Drive): 1550 RPM @ 12V/3S ~2000RPM Max @ 16V/4S (Not recommended for Dragon motors) Stall Torque (Drive): 115 ozf-in with Viper @ 12A 167 ozf-in with Dragon (tested) @ 17.7A Dimensions (Drive): CAD Assembly Here DartBox Diameter: 22mm Length: 46.5mm from face. Gearbox 19.4mm + Motor 27.1mm Shaft: 24mm long, steel D shaft 4X M2 Screw face mount, 18mm bolt circle If paired with 6mm shaft, V2 6mm CAD is here! About Motors & ESCs The Motors: I have two stock options for motors. You can go with a Viper, or a Dragon motor. Both of these motors are rated for 35000 RPM at 3S (12 volts), so the Drive 22.5:1 gearbox will be around 1550 RPM max. But the real difference that sets these motors apart is their torque and power. Viper motors are affordable but still very powerful, while Dragon motors are about 50% more powerful! 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 is now using totally custom motors with similar amazing performance. With a solid steel 4mm 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 (For now my recommendation is our new WEKA Dual 20A ESC.) If you want to know if a given ESC is suitable, use the Contact Us form and ask.
