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The brushless advantage for outrunner design motors!
Just as Ammo motors have revolutionized brushless inrunner technology, RimFire motors have done the same for outrunners! The combination of superior performance and a competitive price makes these power plants a great value. Plus, the wide selection means there's a RimFire motor that's ideal for whatever the application, including brushed-to-brushless upgrades as well as glow-to-electric conversions. Equip your airplane with a RimFire, and watch it reach new heights!
- Engineered for explosive acceleration and maximum torque.
- The lightened aluminum motor can houses high-torque, "rare-earth" Neodymium magnets.
- Better cooling means 50% more power than many others outrunners of similar size.
- Dependable and virtually maintenance-free; no comms or brushes to worry about, and bearings are double-shielded.
- Ready to install, with prop adapter, motor mount, hardware - and gold-plated connectors compatible with all ElectriFly brushless ESCs.
28-22-1380kV Shown
GPMG4505 |
Outrunner Brushless Motors
28 mm diameter
Click here to see lengths available
Click here to see motor specifications
35-30-950kV Shown
GPMG4590 |
Outrunner Brushless Motors
35 mm diameter Click here to see lengths available
Click here to see motor specifications
42-50-600kV Shown
GPMG4695 |
Outrunner Brushless Motors
42 mm diameter Click here to see lengths available
Click here to see motor specifications
50-55-500kV Shown
GPMG4740 |
Outrunner Brushless Motors
50 mm diameter Click here to see lengths available
Click here to see motor specifications
63-62-250kV Shown
GPMG4795 |
Outrunner Brushless Motors
63 mm diameter Click here to see lengths available
Click here to see motor specifications
Brushless Outrunner Motor Mounts
GPMG1200 Small 28 mm motors
GPMG1205 Medium 35-42 mm motors
GPMG1210 Large 50-63 mm motors
Outrunner Prop Adapters
GPMQ4903 Prop Adapter for 35 mm Dia Motor
GPMQ4906 Prop Adapter for 42 mm Dia Motor
GPMQ4909 Prop Adapter for 50 mm Dia Motor
GPMQ4912 Prop Adapter for 63 mm Dia Motor
| Stock No. |
Motor Dia. (mm) |
Motor Length (mm) |
Shaft Dia. (mm) |
Shaft Length (mm) |
RPM/V (kV Rating) |
Weight |
Suggested Prop Size |
Input Voltage |
Max Constant Current (amps) |
| Max Constant Watts |
Max Surge Current (amps) |
Max Surge Watts |
No Load Current (amps) |
Electrical Connector Size |
75-100 W/lb Trainer & Sport Performance Weight Range (lb) |
100-150 W/lb Aerobatic & High-Speed Performance Weight Range (lb) |
Over 150 W/lb 3D & Extreme Performance Weight Under (lb) |
Silver Series Recommended ESC |
Minimum LiPo Pack Recommended |
| 1 Pack Capacity (mAh) |
2 Packs in parallel Capacity (mAh) |
| GPMG4505 |
28 |
22 |
3 |
12 |
1380 |
1.0 oz. (27 g) |
8x3.8S - 10x3.8S |
7.4-11.1 |
9 |
100 |
13.5 |
150 |
0.4 |
2 mm |
1-1.3 |
0.6-1 |
0.6 |
SS-12 |
640 |
350 |
| GPMG4525 |
28 |
26 |
3 |
12 |
1000 |
1.4 oz. (41 g) |
9x3.8S - 11x4.7S |
7.4-11.1 |
12 |
135 |
15 |
165 |
0.7 |
2 mm |
1.4-1.8 |
0.9-1.4 |
0.9 |
SS-12 |
640 |
350 |
| GPMG4530 |
28 |
26 |
3 |
12 |
1300 |
1.4 oz. (41 g) |
8x3.5S - 10x7S |
7.4-11.1 |
15 |
165 |
19 |
210 |
0.9 |
2 mm |
1.7-2.2 |
1.1-1.7 |
1.1 |
SS-25 |
910 |
640 |
| GPMG4535 |
28 |
26 |
3 |
12 |
1600 |
1.4 oz. (41 g) |
7x4S - 9x3.5S |
7.4-11.1 |
17 |
190 |
25 |
280 |
1 |
2 mm |
1.9-2.5 |
1.3-1.9 |
1.3 |
SS-25 |
1250 |
640 |
| GPMG4555 |
28 |
30 |
3 |
12 |
750 |
1.9 oz. (54 g) |
9x3.5S - 12x6S |
7.4-11.1 |
10 |
150 |
15 |
220 |
0.6 |
2 mm |
1.5-2 |
1-1.5 |
1 |
SS-25 |
910 |
640 |
| GPMG4560 |
28 |
30 |
3 |
12 |
950 |
1.9 oz. (54 g) |
10x3.8S - 12x6S |
7.4-11.1 |
14 |
155 |
20 |
220 |
0.7 |
2 mm |
1.5-2 |
1-1.5 |
1 |
SS-25 |
910 |
640 |
| GPMG4565 |
28 |
30 |
3 |
12 |
1250 |
1.9 oz. (54 g) |
8x3.5S - 11x4.7S |
7.4-11.1 |
18 |
200 |
25 |
280 |
0.9 |
2 mm |
2-2.7 |
1.3-2 |
1.3 |
SS-25 |
1250 |
640 |
| GPMG4570 |
28 |
30 |
3 |
12 |
1450 |
1.9 oz. (54 g) |
7x4S - 10x3.5S |
7.4-11.1 |
23 |
255 |
28 |
310 |
1.07 |
2 mm |
2.5-3.4 |
1.7-2.5 |
1.7 |
SS-25 |
1250 |
640 |
| GPMG4590 |
35 |
30 |
4 |
16.5 |
950 |
2.5 oz. (7.1 g) |
10x5E - 12x6E |
11.1-14.8 |
20 |
296 |
28 |
415 |
0.8 |
3.5 mm |
2.9-3.9 |
2-2.9 |
2 |
SS-25 |
910 |
640 |
| GPMG4595 |
35 |
30 |
4 |
16.5 |
1250 |
2.5 oz. (7.1 g) |
10x7E |
11.1 |
30 |
333 |
35 |
390 |
1.2 |
3.5 mm |
3.3-4.4 |
2.2-3.3 |
2.2 |
SS-35 |
1250 |
910 |
| GPMG4600 |
35 |
30 |
4 |
16.5 |
1450 |
2.5 oz. (7.1 g) |
9x6E - 12x6E |
7.4-11.1 |
35 |
388 |
40 |
445 |
1.8 |
3.5 mm |
3.9-5.2 |
2.6-3.9 |
2.6 |
SS-35 |
2100 |
1250 |
| GPMG4615 |
35 |
36 |
4 |
16.5 |
1000 |
3.6 oz. (102 g) |
10x5E - 11x8E |
11.1-14.8 |
40 |
592 |
53 |
785 |
1.4 |
3.5 mm |
5.9-7.9 |
3.9-5.9 |
3.9 |
SS-45 |
3200 |
2100 |
| GPMG4620 |
35 |
36 |
4 |
16.5 |
1200 |
3.6 oz. (102 g) |
9x4.5E - 11x5.5E |
11.1-14.8 |
45 |
666 |
55 |
815 |
1.8 |
3.5 mm |
6.6-8.8 |
4.4-6.6 |
4.4 |
SS-45 |
3200 |
2100 |
| GPMG4625 |
35 |
36 |
4 |
16.5 |
1500 |
3.6 oz. (102 g) |
9x6E - 12x6E |
7.4-11.1 |
50 |
555 |
70 |
775 |
2.6 |
3.5 mm |
5.5-7.4 |
3.7-5.5 |
3.7 |
SS-60 |
3200 |
2100 |
| GPMG4635 |
35 |
48 |
4 |
16.5 |
700 |
6.0 oz. (170 g) |
10x5E - 13x6.5E |
14.8-22.2 |
35 |
777 |
55 |
1220 |
1.4 |
3.5 mm |
7.7-10.4 |
5.2-7.7 |
5.2 |
SS-45 |
3200 |
2100 |
| GPMG4640 |
35 |
48 |
4 |
16.5 |
850 |
6.0 oz. (170 g) |
11x8E - 18x10E |
7.4-14.8 |
45 |
666 |
55 |
815 |
1.5 |
3.5 mm |
6.6-8.9 |
4.4-6.6 |
4.4 |
SS-60 |
3200 |
2100 |
| GPMG4645 |
35 |
48 |
4 |
16.5 |
1000 |
6.0 oz. (170 g) |
10x5E - 11x7E |
11.1-14.8 |
50 |
740 |
90 |
1330 |
3 |
3.5 mm |
7.4-9.8 |
3.7-5.5 |
4.9 |
SS-80 |
3200 |
2100 |
| GPMG4650 |
35 |
48 |
4 |
16.5 |
1300 |
6.0 oz. (170 g) |
10x7E |
11.1 |
70 |
777 |
95 |
1050 |
4.2 |
3.5 mm |
7.7-10.4 |
5.2-7.7 |
5.2 |
SS-80 |
? |
2100 |
| GPMG4655 |
35 |
48 |
4 |
16.5 |
1600 |
6.0 oz. (170 g) |
9x4.5E - 12x6E |
7.4-11.1 |
80 |
888 |
100 |
1110 |
4.9 |
3.5 mm |
8.8-11.9 |
5.9-8.8 |
5.9 |
SS-80 |
? |
2100 |
| GPMG4670 |
42 |
40 |
5 |
17 |
800 |
4.4 oz. (125 g) |
10x5E - 13x8E |
11.1-18.5 |
32 |
592 |
40 |
740 |
1.4 |
3.5 mm |
5.9-7.9 |
3.9-5.9 |
3.9 |
SS-35 |
3200 |
2100 |
| GPMG4675 |
42 |
40 |
5 |
17 |
1000 |
4.4 oz. (125 g) |
10x5E - 11x7E |
11.1-14.8 |
45 |
666 |
50 |
740 |
2.5 |
3.5 mm |
6.6-8.9 |
4.4-6.6 |
4.4 |
SS-45 |
3200 |
2100 |
| GPMG4695 |
42 |
50 |
5 |
17 |
600 |
7.0 oz. (198 g) |
13x8E - 17x10E |
11.1-18.5 |
35 |
658 |
50 |
925 |
1.2 |
3.5 mm |
6.6-8.7 |
4.4-6.6 |
4.4 |
SS-45 |
3200 |
2100 |
| GPMG4700 |
42 |
50 |
5 |
17 |
800 |
7.0 oz. (198 g) |
10x5E - 14x7E |
11.1-18.5 |
50 |
925 |
80 |
1480 |
2.6 |
3.5 mm |
9.2-12.3 |
6.2-9.2 |
6.2 |
SS-60 |
3200 |
2100 |
| GPMG4705 |
42 |
50 |
5 |
17 |
1000 |
7.0 oz. (198 g) |
10x7E - 13x6.5E |
11.1-18.5 |
65 |
962 |
90 |
1330 |
3.3 |
3.5 mm |
9.6 |
6.4-9.6 |
6.4 |
SS-80 |
3200 |
2100 |
| GPMG4715 |
42 |
60 |
5 |
17 |
480 |
9.5 oz. (268 g) |
13x10E - 20x10E |
11.1-18.5 |
45 |
830 |
80 |
1480 |
1.5 |
3.5 mm |
8.3-11.0 |
5.5-8.3 |
5.5 |
SS-60 |
3200 |
2100 |
| GPMG4720 |
42 |
60 |
5 |
17 |
600 |
9.5 oz. (268 g) |
11x7E - 18x8E |
11.1-25.9 |
40 |
1036 |
70 |
1810 |
2.5 |
3.5 mm |
10.4-13.8 |
6.9-10.4 |
6.9 |
SS-60 |
3200 |
2100 |
| GPMG4725 |
42 |
60 |
5 |
17 |
800 |
9.5 oz. (268 g) |
10x5E - 14x7E |
11.1-18.5 |
60 |
1110 |
100 |
1850 |
4.6 |
3.5 mm |
11.1-14.8 |
7.4-11.1 |
7.4 |
SS-80 |
3200 |
2100 |
| GPMG4740 |
50 |
55 |
8 |
20 |
500 |
10.5 oz. (298 g) |
13x8E - 16x6E |
18.5-22.2 |
52 |
1154 |
65 |
1440 |
1.8 |
4 mm |
11.5-15.4 |
7.7-11.5 |
7.7 |
SS-60 |
3200 |
2100 |
| GPMG4745 |
50 |
55 |
8 |
20 |
650 |
10.5 oz. (298 g) |
11x5.5E - 13x8E |
18.5-25.9 |
65 |
1683 |
85 |
2200 |
3 |
4 mm |
16.8-22.4 |
11.2-16.8 |
11.2 |
SS-80 |
3200 |
2100 |
| GPMG4765 |
50 |
65 |
8 |
20 |
300 |
14.1 oz. (400 g) |
11x8E - 19x8E |
18.5-37 |
40 |
1480 |
65 |
2400 |
1.8 |
4 mm |
14.8-19.8 |
9.9-14.8 |
9.9 |
SS-60 |
3200 |
2100 |
| GPMG4770 |
50 |
65 |
8 |
20 |
450 |
14.1 oz. (400 g) |
12x8E - 17x8E |
18.5-29.6 |
50 |
1480 |
80 |
2360 |
2.3 |
4 mm |
14.8-19.8 |
9.9-14.8 |
9.9 |
SS-80 |
3200 |
2100 |
| GPMG4795 |
63 |
62 |
8 |
25 |
250 |
22.4 oz. (635 g) |
18x6W - 20x8E |
29.6-37 |
45 |
1665 |
72 |
2660 |
1.5 |
4 mm |
16.6-22.2 |
11.1-16.6 |
11.1 |
SS-100 |
3200 |
2100 |

Download the RimFire 28mm Power System manual v2 (338K PDF)
Download the RimFire 35mm Power System manual (457K PDF)
Download the RimFire 42mm Power System manual (463K PDF)
Download the RimFire 50mm Power System manual (457K PDF)
Download the RimFire 63mm Power System manual (381K PDF)

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