Drivetrain speed

Pick your motor, gearing, and wheels to see how fast the robot moves — and decide whether that is actually the speed you want.

Drive motorFree speed at 12V with no load.External gear ratio:1Extra reduction between motor and wheel. Use 1 for a direct-drive wheel.Wheel diametermmgoBILDA mecanum 96 mm · goBILDA 104 mm · REV traction 90 mm · 4 in = 101.6 mm

Drive motorsRobot weightkgIncluding battery.

Free speed

5.15ft/s

1.57 m/s with no load. A loaded robot on carpet typically reaches 70–85% of this.

Wheel speed

312RPM

Field crossing

2.3s

Corner to corner of a 12 ft field at free speed, ignoring acceleration.

What is a good number?

Most competitive FTC drivetrains land somewhere around 4–6 ft/s. Much faster and it becomes hard to drive accurately; much slower and you lose cycles. Rookies are usually better off at the lower end — a controllable robot scores more than a fast one.

Weight and motor count are not yet used in the speed figure — they matter for acceleration and pushing power, which this tool does not model.