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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.
- All include hardware, gold-plated bullet connectors (male connectors are installed; female connectors are included) and a motor mount.
Images are not size-relevant.
GPMG4453 |
RimFire 150
- Includes prop saver, prop adapter and motor mount.
| Description |
Stock No. |
Diameter |
Length
|
kV |
Constant Watts |
Burst Watts |
Weight |
Shaft Diameter (mm) |
Voltage Range |
| Sport |
3D |
Power System Recommendation |
| ESC |
LiPo |
Prop |
| RimFire 150 |
GPMG4453 |
15 mm
(0.55 in) |
15.9 mm (0.63 in) |
3000 |
21 |
24 |
7.1 g
(0.25 oz) |
1.5 mm
(0.059 in) |
7.4V / 2S LiPo |
65 g
(2.3 oz) |
40 g (1.4 oz) |
6 Amp |
2S |
5x4.3 electric |
GPMG4455 |
RimFire 200
- Includes prop saver, prop adapter and motor mount.
| Description |
Stock No. |
Diameter |
Length
|
kV |
Constant Watts |
Burst Watts |
Weight |
Shaft Diameter (mm) |
Voltage Range |
| Sport |
3D |
Power System Recommendation |
| ESC |
LiPo |
Prop |
| RimFire 200 |
GPMG4455 |
18 mm
(0.71 in) |
18.8 mm (0.74 in) |
2400 |
36 |
47 |
12.4 g
(0.44 oz) |
2 mm
(0.079 in) |
7.4 / 2S LiPo |
177 g
(6.2 oz) |
110 g (3.9 oz) |
6 Amp |
2S |
7x3.5 electric |
 GPMG4502 |
RimFire 250
- Includes prop saver, prop adapter and motor mount.
| Description |
Stock No. |
Diameter |
Length
|
kV |
Constant Watts |
Burst Watts |
Weight |
Shaft Diameter (mm) |
Voltage Range |
| Sport |
3D |
Power System Recommendation |
| ESC |
LiPo |
Prop |
| RimFire 250 |
GPMG4502 |
28 mm
(1.1 in) |
13 mm
(0.51 in) |
1750 |
90 |
120 |
20 g
(0.71 oz) |
3 mm
(0.12 in) |
7.4-11.1V / 2-3S LiPo |
225 g
(8 oz) |
140 g (5 oz) |
8 Amp |
2S |
7x6 to 8x4 Slow-fly |
GPMG4505 |
RimFire 300
- Includes prop saver, prop adapter and motor mount.
| Description |
Stock No. |
Diameter |
Length
|
kV |
Constant Watts |
Burst Watts |
Weight |
Shaft Diameter (mm) |
Voltage Range |
| Sport |
3D |
Power System Recommendation |
| ESC |
LiPo |
Prop |
| RimFire 300 |
GPMG4505 |
28 mm
(1.1 in) |
22 mm (0.87 in) |
1380 |
100 |
150 |
27 g
(0.95 oz) |
3 mm
(0.12 in) |
7.4-11.1V / 2-3S LiPo |
395 g
(14 oz) |
255 g (9 oz) |
12 Amp |
3S |
8x4.5 to 10x4.5 Slow-fly |
GPMG4525 |
RimFire 370
- Includes prop saver, prop adapter and motor mount.
| Description |
Stock No. |
Diameter |
Length
|
kV |
Constant Watts |
Burst Watts |
Weight |
Shaft Diameter (mm) |
Voltage Range |
| Sport |
3D |
Power System Recommendation |
| ESC |
LiPo |
Prop |
| RimFire 370 |
GPMG4525 |
28 mm
(1.1 in) |
26 mm (1.0 in) |
1000 |
135 |
165 |
41 g
(1.4 oz) |
3 mm
(0.12 in) |
7.4-11.1V / 2-3S LiPo |
595 g (21 oz) |
370 g (13 oz) |
12 Amp |
3S |
9x4.5 to 10x4.5 Slow-fly |
GPMG4560 |
RimFire 400
- Includes prop saver, prop adapter and motor mount.
| Description |
Stock No. |
Diameter |
Length
|
kV |
Constant Watts |
Burst Watts |
Weight |
Shaft Diameter (mm) |
Voltage Range |
| Sport |
3D |
Power System Recommendation |
| ESC |
LiPo |
Prop |
| RimFire 400 |
GPMG4560 |
28 mm
(1.1 in) |
30 mm (1.2 in) |
950 |
160 |
220 |
54 g
(1.9 oz) |
3 mm
(0.12 in) |
7.4-11.1V / 2-3S LiPo |
905 g (32 oz) |
565 g (20 oz) |
25 Amp |
3S |
8x6 to 10x4.5 Slow-fly |
GPMG4595 |
RimFire .10
- Includes prop adapter and motor mount.
| Description |
Stock No. |
Diameter |
Length
|
kV |
Constant Watts |
Burst Watts |
Weight |
Shaft Diameter (mm) |
Voltage Range |
| Sport |
3D |
Power System Recommendation |
| ESC |
LiPo |
Prop |
| RimFire .10 |
GPMG4595 |
35 mm
(1.4 in) |
30 mm
(1.2 in) |
1250 |
325 |
390 |
71 g
(2.5 oz) |
4 mm
(0.16 in) |
7.4-11.1V / 2-3S LiPo |
1360 g
(3 lbs) |
905 g
(2 lbs) |
35 Amp |
3S |
10x4.5 to 10x7 Electric |
GPMG4620 |
RimFire .15
- Includes prop adapter and motor mount.
| Description |
Stock No. |
Diameter |
Length
|
kV |
Constant Watts |
Burst Watts |
Weight |
Shaft Diameter (mm) |
Voltage Range |
| Sport |
3D |
Power System Recommendation |
| ESC |
LiPo |
Prop |
| RimFire .15 |
GPMG4620 |
35 mm
(1.4 in) |
36 mm (1.4 in) |
1200 |
500 |
650 |
102 g
(3.6 oz) |
4 mm
(0.16 in) |
11.1-14.8V / 3-4S LiPo |
1815 g
(4 lbs) |
1135 g
(2.5 lbs) |
45 Amp |
4S |
10x7 to 11x7 Electric |
GPMG4675 |
RimFire .25
- Includes prop adapter and motor mount.
| Description |
Stock No. |
Diameter |
Length
|
kV |
Constant Watts |
Burst Watts |
Weight |
Shaft Diameter (mm) |
Voltage Range |
| Sport |
3D |
Power System Recommendation |
| ESC |
LiPo |
Prop |
| RimFire .25 |
GPMG4675 |
42 mm
(1.7 in) |
40 mm
(1.6 in) |
1000 |
650 |
740 |
125 g
(4.4 oz) |
5 mm
(0.2 in) |
11.1-14.8V / 3-4S LiPo |
2040 g
(4.5 lbs) |
1360 g
(3 lbs) |
45 Amp |
3S |
11x8.5 to 12x6 Electric |
GPMG4700 |
RimFire .32
- Includes prop adapter and motor mount.
| Description |
Stock No. |
Diameter |
Length
|
kV |
Constant Watts |
Burst Watts |
Weight |
Shaft Diameter (mm) |
Voltage Range |
| Sport |
3D |
Power System Recommendation |
| ESC |
LiPo |
Prop |
| RimFire .32 |
GPMG4700 |
42 mm
(1.7 in) |
50 mm
(2.0 in) |
800 |
850 |
1480 |
198 g
(7 oz) |
5 mm
(0.2 in) |
11.1-14.8V / 3-4S LiPo |
2950 g
(6.5 lbs) |
1845 g
(4 lbs) |
45 Amp |
4S |
12x6 to 13x8 Electric |
GPMG4725 |
RimFire .46
- Includes prop adapter and motor mount.
| Description |
Stock No. |
Diameter |
Length
|
kV |
Constant Watts |
Burst Watts |
Weight |
Shaft Diameter (mm) |
Voltage Range |
| Sport |
3D |
Power System Recommendation |
| ESC |
LiPo |
Prop |
| RimFire .46 |
GPMG4725 |
42 mm
(1.7 in) |
60 mm
(2.4 in) |
800 |
1000 |
1850 |
268 g
(9.5 oz) |
5 mm
(0.2 in) |
18.5-22.2V / 5-6S LiPo |
3400 g
(7.5 lbs) |
2210 g
(5 lbs) |
60 Amp |
6S |
10x5 to 11x5 Electric |
GPMG4715 |
RimFire .55
- Includes prop adapter and motor mount.
| Description |
Stock No. |
Diameter |
Length
|
kV |
Constant Watts |
Burst Watts |
Weight |
Shaft Diameter (mm) |
Voltage Range |
| Sport |
3D |
Power System Recommendation |
| ESC |
LiPo |
Prop |
| RimFire .55 |
GPMG4715 |
42 mm
(1.7 in) |
60 mm
(2.4 in) |
480 |
1100 |
1850 |
268 g
(9.5 oz) |
5 mm
(0.2 in) |
18.5-22.2V / 5-6S LiPo |
4310 g
(9.5 lbs) |
2720 g
(6 lbs) |
60 Amp |
6S |
13x10 to 15x8 Electric |
GPMG4745 |
RimFire .60
- Includes prop adapter and motor mount.
| Description |
Stock No. |
Diameter |
Length
|
kV |
Constant Watts |
Burst Watts |
Weight |
Shaft Diameter (mm) |
Voltage Range |
| Sport |
3D |
Power System Recommendation |
| ESC |
LiPo |
Prop |
| RimFire .60 |
GPMG4745 |
50 mm
(2.0 in) |
55 mm
(2.2 in) |
650 |
1200 |
2200 |
298 g
(10.5 oz) |
8 mm
(0.31 in) |
18.5 - 22.2V / 5-6S LiPo |
4705 g
(10.5 lbs) |
2950 g
(6.5 lbs) |
60 Amp |
6S |
12x6 to 13x4 Electric |
GPMG4740 |
RimFire .80
- Includes prop adapter and motor mount.
| Description |
Stock No. |
Diameter |
Length
|
kV |
Constant Watts |
Burst Watts |
Weight |
Shaft Diameter (mm) |
Voltage Range |
| Sport |
3D |
Power System Recommendation |
| ESC |
LiPo |
Prop |
| RimFire .80 |
GPMG4740 |
50 mm
(2.0 in) |
55 mm
(2.2 in) |
500 |
1300 |
2200 |
298 g
(10.5 oz) |
8 mm
(0.31 in) |
18.5 - 22.2V / 5-6S LiPo |
5215 g
(11.5 lbs) |
3175 g
(7 lbs) |
60 Amp |
6S |
15x6 to 15x8 Electric |
GPMG4770 |
RimFire 1.20
- Includes prop adapter and motor mount.
| Description |
Stock No. |
Diameter |
Length
|
kV |
Constant Watts |
Burst Watts |
Weight |
Shaft Diameter (mm) |
Voltage Range |
| Sport |
3D |
Power System Recommendation |
| ESC |
LiPo |
Prop |
| RimFire 1.20 |
GPMG4770 |
50 mm
(2.0 in) |
65 mm
(2.6 in) |
450 |
1800 |
2300 |
400 g
(14.1 oz) |
8 mm
(0.31 in) |
18.5 - 22.2V / 5-6S LiPo |
6520 g
(14.5 lbs) |
4080 g
(9 lbs) |
80 Amp |
6S |
16x6 to 17x8 Electric |
GPMG4795 |
RimFire 1.60
- Includes prop adapter and motor mount.
| Description |
Stock No. |
Diameter |
Length
|
kV |
Constant Watts |
Burst Watts |
Weight |
Shaft Diameter (mm) |
Voltage Range |
| Sport |
3D |
Power System Recommendation |
| ESC |
LiPo |
Prop |
| RimFire 1.60 |
GPMG4795 |
63 mm
(2.5 in) |
62 mm
(2.4 in) |
250 |
2500 |
3200 |
634 g
(22.4 oz) |
8 mm
(0.31 in) |
33.3 - 44.4V / 9-12S LiPo |
9070 g
(20 lbs) |
5445 g
(12 lbs) |
80 Amp |
12S |
16x8 to 18x8 Electric |
GPMG4800 |
RimFire 50cc
- Includes prop adapter and motor mount.
| Description |
Stock No. |
Diameter |
Length
|
kV |
Constant Watts |
Burst Watts |
Weight |
Shaft Diameter (mm) |
Voltage Range |
| Sport |
3D |
Power System Recommendation |
| ESC |
LiPo |
Prop |
| RimFire 50cc |
GPMG4800 |
80 mm
(3.1 in) |
75 mm
(3.0 in) |
230 |
5000 |
6500 |
1250 g
(44.1 oz) |
10 mm
(0.39 in) |
33.3-55.5V / 9-15S LiPo |
12.7 kg
(28 lbs) |
8.17 kg
(18 lbs) |
120 Amp |
12S |
22x8 to 26x10 |
 GPMG4805 |
RimFire 65cc
- Includes prop adapter and motor mount.
| Description |
Stock No. |
Diameter |
Length
|
kV |
Constant Watts |
Burst Watts |
Weight |
Shaft Diameter (mm) |
Voltage Range |
| Sport |
3D |
Power System Recommendation |
| ESC |
LiPo |
Prop |
| RimFire 65cc |
GPMG4805 |
80 mm
(3.1 in) |
85 mm
(3.4 in) |
160 |
6500 |
8400 |
1480 g
(52.2 oz) |
10 mm
(0.39 in) |
33.3-55.5V / 9-15S LiPo |
19.1 kg
(42 lbs) |
11.79 kg
(26 lbs) |
120 Amp |
12S |
22x10 to 26x12 |
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
Download the RimFire 250 Power System manual (131 KB PDF)
Download the RimFire 28mm Power System manual v2 (338 KB PDF)
Download the RimFire 35mm Power System manual (457 KB PDF)
Download the RimFire 42mm Power System manual (463 KB PDF)
Download the RimFire 50mm Power System manual (457 KB PDF)
Download the RimFire 63mm Power System manual (381 KB PDF)
Download the RimFire 80mm Power System manual (224 KB PDF)
As we continue to refine our RimFire motor selection, some previous options may no longer be available.
Listed below is a helpful list showing the older motors along with their replacements.
| Motor |
Suggested Substitution |
|---|
| GPMG4500 | Rimfire 370 - GPMG4525 |
| GPMG4530 | Rimfire 370 - GPMG4525 |
| GPMG4535 | Rimfire 370 - GPMG4525 |
| GPMG4555 | Rimfire 400 - GPMG4560 |
| GPMG4565 | Rimfire 400 - GPMG4560 |
| GPMG4570 | Rimfire 400 - GPMG4560 |
| GPMG4590 | Rimfire .10 - GPMG4595 |
| GPMG4600 | Rimfire .10 - GPMG4595 |
| GPMG4615 | Rimfire .15 - GPMG4620 |
| GPMG4625 | Rimfire .15 - GPMG4620 |
| GPMG4635 | Rimfire .25 - GPMG4675 |
| GPMG4640 | Rimfire .25 - GPMG4675 |
| GPMG4645 | Rimfire .25 - GPMG4675 |
| GPMG4650 | Rimfire .25 - GPMG4675 |
| GPMG4655 | Rimfire .25 - GPMG4675 |
| GPMG4670 | Rimfire .25 - GPMG4675 |
| GPMG4695 | Rimfire .32 - GPMG4700 |
| GPMG4705 | Rimfire .32 - GPMG4700 |
| GPMG4720 | Rimfire .46 - GPMG4725 |
| GPMG4765 | Rimfire 1.20 - GPMG4770 |
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