T-Motor Pacer P2505

What it pulls

T-Motor’s own bench test, one line per prop. Drag across the chart to move the throttle; the model above follows.

What you get for $24.90

• 31.25 g

  T-Motor calls it super lightweight: 31.25 g with leads.

  Source: T-Motor product page, T-Motor drawing, specs and test report

• Wide, short stator

  T-Motor says the large-diameter stator lowers the motor's height and raises its efficiency.

  Source: T-Motor product page

• N54 magnets

  T-Motor uses N54 magnets, which it says give a stronger magnetic force.

  Source: T-Motor product page

• For flow and juicy flying

  T-Motor says it holds attitude precisely, with a linear throttle and fine low-throttle control.

  Source: T-Motor product page

• Bench data at 4S, 5S and 6S

  Thrust, current, RPM and power in 10% steps from 30% throttle on 5-, 6- and 7-inch props; at full throttle it pulled 1384 g on a Gemfan 7040 at 4S and 1512 g on T-Motor's T6143-3 at 5S.

  Source: T-Motor drawing, specs and test report

What to pair it with

Our reading of T-Motor’s numbers, so your build matches what the motor was tested with.

ESC

Peak current over 60 s is 47 A. T-Hobby pairs it with T-Motor's P50A 4-in-1, Ligpower with the F55A PRO II 6S 4-in-1. (T-Motor drawing, specs and test report, T-Hobby product page, Ligpower product page)

Props

T-Hobby says 5–7-inch props; Ligpower lists T-Motor's P49436 and T5143S. On the bench at full throttle it pulled 1330 g on the 5-inch T5143-3 and 1512 g on the 6-inch T6143-3 at 5S, and 1628 g on the T6143-3 at 6S. (T-Hobby product page, Ligpower product page, T-Motor drawing, specs and test report)

Battery

4S–6S. T-Hobby suggests a 4S 1550 mAh or 6S 1300 mAh 120C pack, for a take-off weight of about 700–720 g. (T-Motor drawing, specs and test report, T-Hobby product page)

Frame

Heavy 5-inch, 6-inch freestyle and mid-range quads, per T-Motor. Four M3 holes on a 16 mm circle. (Ligpower product page, T-Motor drawing, specs and test report)

Where to buy

• T-Motorthe maker's store (Tmotorhobby); out of stock on the day checked
  $24.90seen Oct 19, 2026
  Visit
• T-HobbyT-Motor's hobby-brand store
  $24.90seen Oct 19, 2026
  Visit
• LigpowerT-Motor's Ligpower store, sold as a 15–20-day pre-order
  $24.90seen Oct 19, 2026
  Visit

Plain links, not affiliate links. Prices change; the store’s page has the current one.

Full specs

Bench data

Redrawn from T-Motor’s test reports. Thrust is static pull on a bench, more than you get in flight. Power is volts × amps; efficiency is thrust divided by power.

Inside the motor

A brushless outrunner: the coils stand still in the middle and the magnets spin around them. From the top down:

• Bell. One piece (Unibell), 30.4 mm across, silver, with a hollow-carved top of five swept spokes whose edges are anodised rose red. (T-Motor product page, T-Motor drawing, specs and test report)
• Shaft. 4 mm by T-Motor's table, with an M5 thread; it stands 13.5 mm above the bell. (T-Motor drawing, specs and test report)
• Base. Silver, with four M3 holes on a 16 mm circle; 20 AWG leads, 150 mm long. (T-Motor product page, T-Motor drawing, specs and test report)

How fast it spins

KV is the motor’s no-load speed per volt. With nothing on the shaft, the 1850KV version reaches about these speeds; a prop loads the motor and brings it down, typically to around 70–75% of these figures at full throttle.

A 14-pole rotor has 7 pole pairs, so every turn of the shaft is 7 electrical cycles, and a six-step ESC switches the phases 42 times per turn.

About the 3D model

A generic outrunner drawn from T-Motor’s published sizes: the 25 × 5 mm stator, 30.4 mm bell, 15.3 mm height, 16 mm mounting circle and 12 teeth and 14 magnets. Anything T-Motor doesn’t publish is typical for a motor this size, and the bell’s spoked top, the base and the inside are a generic design, not this motor’s. The colours are read off the maker’s product photos. There are no logos or markings: it is our drawing, not the maker’s.

Sources

1. T-Motor: P2505 1850KV (Pale Rose) product page on its Tmotorhobby store (description, feature images, product photos, price; drawing, spec table, test report and contents are images on the page). Retrieved Oct 19, 2026.
2. T-Motor: P2505 product drawing, spec table, test report and contents, five images on the product page (S1) starting with this one. Test report: 1850KV at about 16.8 V on GF7040-3 and T6143-3 props, about 21 V on T5143-3 and T6143-3, about 25 V on T5143-3 and T6143-3, 30% to 100% throttle in 10% steps; columns as T-Motor gives them: thrust in g, voltage measured per row, current, RPM, power, efficiency; motor surface temperature after 1 min at 100% throttle 77–95 °C, ambient 16 °C. Retrieved Oct 19, 2026.
3. T-Motor: P2505 product page on its Ligpower store (description, matching guide, packing list, price; spec table and test report as text). Retrieved Oct 19, 2026.
4. T-Hobby (T-Motor's hobby brand): P2505 product page (description, recommended setup, price). Retrieved Oct 19, 2026.