RCRCCarCalc

2400KV motor on a 3S LiPo

Quick answer

A 2400KV motor on 3S turns about 26,640 RPM at 11.1 V nominal and 30,240 RPM on a fresh 12.6 V pack. Geared at 12:1 on 4.3 in tires, that is a 28.4 mph ceiling.

RIAARIO 3s Lipo Battery 30C 5000mAh 11.1V Lipo Battery
3S pack

RIAARIO 3s Lipo Battery 30C 5000mAh 11.1V Lipo Battery

  • 3S
  • 5000mAh

A 3S LiPo is 11.1 V nominal and 12.6 V full, which is what sets the RPM on this page.

$59.99 listed price, changes often

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What RPM does 2400KV make on 3S?

Pack stateVoltsMotor RPM
Nominal (3.7 V per cell)11.1 V26,640
Fresh off the charger (4.2 V per cell)12.6 V30,240

A middle pairing that suits several 1/10 and 1/8 platforms depending on gearing. KV is unloaded RPM per volt, so real RPM under load is lower. See RC motor KV explained.

What top speed can 2400KV on 3S reach?

Theoretical ceiling in mph by final drive ratio and example tire diameter. Real cars usually reach about 85 percent. Measure your own tires and use the top speed calculator for an exact figure.

FDR3 in
1/18 to 1/16 truck
4.3 in
1/10 short course or stadium truck
5.5 in
1/10 monster truck
4.4 in
1/8 buggy
6.3 in
1/8 monster truck (3.8 in wheel)
6:139.656.872.658.183.2
8:129.742.654.543.662.4
10:123.834.143.634.949.9
12:119.828.436.329.141.6
16:114.921.327.221.831.2
25:19.513.617.413.920
40:15.98.510.98.712.5

Other cell counts for 2400KV

Other motors on 3S

Motors near this KV and packs for this cell count

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Frequently asked questions

How fast is a 2400KV motor on 3S?

The motor spins about 26,640 RPM unloaded at 11.1 V. Road speed depends on gearing and tire size: at a 12:1 final drive with 4.3 in tires the theoretical ceiling is 28.4 mph, and real cars usually reach 80 to 90 percent of that. The table on this page shows the ceiling across common gearing and tire sizes.

Can I run a 2400KV motor on 3S?

Only if the motor and ESC are rated for 3S and the full-charge RPM of 30,240 is within the motor's maximum. This pairing stays under 50,000 RPM, which most suitable motors handle. Gear conservatively at first and check temperatures after a few minutes.

RCCarCalc is researched guidance, not professional advice. Figures come from published manufacturer specifications, listings and verified owner reports, not hands-on testing. Speeds are theoretical or as listed; real results depend on gearing, battery, tires and terrain. See how we research.