Motors

FPV Drone Motors: How to Choose Stator Size, KV, Voltage and Mount for Any Build

The right FPV motor is decided by the frame and prop, then the battery: a 5″ quad wants a 2207 or 2306 at 1,750–2,050KV on 6S, a 7″ long-range quad a 2807 at 1,300KV, a 65 mm whoop an 0702 at 19,000KV or more. This guide gives the full table by build class, explains the voltage and mount rules that stop a motor fitting, and how to replace a single motor without upsetting the other three.

Published 9 October 2026 · by the Fioparts team, Gurugram

How to read a motor listing

Every brushless drone motor is sold by four numbers: the stator size (2207 = 22 mm wide, 7 mm tall), the KV (RPM per volt, unloaded), the voltage range it is wound for (4S, 6S, 12S…) and the prop mount (M5 thread, T-mount, 1.5 mm or 1 mm press-fit shaft, 6 mm bolt-on). Stator size sets how much torque the motor can make, KV decides how fast it wants to spin, and the two together tell you which propeller and battery it belongs with. If KV is new to you, read Motor KV explained first; this guide is about choosing.

Pick the motor from the build, not the other way round

Start from the frame and prop size, then the battery, then the motor. These are the pairings our catalogue and most manufacturers converge on:

BuildPropStatorBatteryKVMount
65 mm tiny whoop31 mm0702–08021S19,000–30,0001 mm shaft
75–85 mm whoop40–45 mm, 2″1002–11031S–2S10,000–14,0001–1.5 mm shaft
2.5–3″ toothpick2.5–3″1303–14042S–4S3,800–6,0001.5 mm / T-mount
3.5–4″3.5–4″1505–20044S–6S2,500–4,300 (4S), 1,800–2,700 (6S)T-mount, M5
5″ freestyle / racing5–5.1″2207, 2207.5, 2306, 22084S or 6S2,400–2,750 (4S), 1,750–2,050 (6S)M5
6–7″ long range6–7″2806.5, 2807, 2808, 28106S1,300–1,500M5
8–10″ cinelifter8–10″2812, 3110, 3115, 33146S–8S900–1,100M5
12–16″ cinelifter / X-class12–16″4214, 4215, 42186S–8S350–4406 mm
F450 / S500 DIY quad10″2212, 2213, 22163S–4S800–1,000M5 / 6 mm adapter

Anything larger than that — 18″ to 40″ props on 12S–24S — is a different conversation about thrust per arm; see the heavy-lift motor guide.

4S or 6S?

On a 5″ quad the choice is really about which battery you own. A 6S pack delivers the same power at lower current, so wires, ESC and connectors run cooler, and most new 5″ motors (2207 1750–2050KV, 2306 1750KV) are wound for it. 4S still makes sense if you have 4S packs and a 4S charger habit — then you want 2,400–2,750KV. What you must not do is cross them: a 2,550KV motor on 6S over-revs the prop, draws far more current than a 45–65 A ESC expects and gets hot enough to demagnetise. Check the motor’s stated voltage range before the KV.

Stator size inside a class

  • 2207 vs 2306 — the two mainstream 5″ stators. 2306 is wider and a little snappier in response; 2207 is taller and holds power higher up the throttle. For a first freestyle quad either is right; match the KV to your battery and stop there.
  • 2207.5 / 2208 — extra stator height for racing and heavier 6S builds with HD air units: more torque, slightly more weight and current.
  • 1404 vs 1505 vs 1507 on 3–4″ — a 1404 (3,000–4,600KV) is a toothpick motor for 3″ props on 3S–4S; a 1505 / 1507 (2,500–3,450KV) carries a 3.5–4″ prop on 4S–6S with a camera and air unit on board.
  • 2806.5 / 2807 vs 3110 / 3115 — 28 mm stators fly 7″ props on 6S efficiently; 31 mm motors at 900KV are for 8–10″ props and the extra weight of a cinelifter.

Prop mount: the spec people forget

A motor only takes a prop with the matching hub. M5 threaded shaft with a nylon nut is standard from 5″ up to about 10″. T-mount (two M2 screws through the prop into the bell) and 1.5 mm press-fit are the micro standards — many 1404–2004 motors ship with both. Whoop motors use a plain 1 mm (or 0.8 mm) shaft the prop pushes onto. 13″ and larger props want a 6 mm shaft or a bolt-on hub. Our motor listings carry the mount as a filter, and the kit builder refuses to pair a motor with a prop that doesn’t fit it.

Current draw and the ESC

Motor makers quote a maximum current per motor at full throttle on a given prop. For a 5″ 6S freestyle motor that is typically 30–45 A, which is why 45–65 A 4-in-1 ESCs are the norm for 5″ and 55–80 A boards for 7″ and 8S builds. Pick the ESC from the motor’s max current with margin, not from the motor’s KV; the 4-in-1 ESC guide walks through the numbers.

Replacing one motor

Match the stator size, KV, voltage and mount of the three motors you are keeping — an odd KV on one arm makes the quad yaw and the flight controller fight it. Rotation direction does not matter for most modern motors: the prop nut is the same thread on every arm and direction is set in Betaflight. The exceptions are motors sold with a CW/CCW thread (some 2212 DIY motors and bolt-on heavy-lift motors), where you buy the matching side. If the bell is scraped or the bearings grind, a replacement bell or bearing from motor parts is cheaper than a motor.

Where to start in the catalogue

5″ motors for freestyle and racing; 7″ and long-range motors; 3–4″ motors; whoop and micro motors. By stator: 2207, 2306, 2807, 2212. Indian makers — Quanteon and Vector Technics among them — are collected under Made in India motors.

Sources & manuals