RimFire Brushless Motors


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!

2-Year Quality Guarantee
  • 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.

RimFire 150
GPMG4453

RimFire 150

  • Includes prop saver, prop adapter and motor mount.

Stock No.
GPMG4453
Diameter
15 mm (0.55 in)
Length
15.9 mm (0.63 in)
kV
3000
Constant Watts
21
Burst Watts
24
Weight
7.1 g (0.25 oz)
Shaft Diameter
1.5 mm (0.059 in)
Voltage Range
7.4V / 2S LiPo
Sport
65 g (2.3 oz)
3D
40 g (1.4 oz)
Power System Recommendation
6 Amp ESC, 2S LiPo, 5x4.3 electric Prop

RimFire 200
GPMG4455

RimFire 200

  • Includes prop saver, prop adapter and motor mount.

Stock No.
GPMG4455
Diameter
18 mm (0.71 in)
Length
18.8 mm (0.74 in)
kV
2400
Constant Watts
36
Burst Watts
47
Weight
12.4 g (0.44 oz)
Shaft Diameter
2 mm (0.079 in)
Voltage Range
7.4 / 2S LiPo
Sport
110 g (3.9 oz)
3D
40 g (1.4 oz)
Power System Recommendation
6 Amp ESC, 2S LiPo, 7x3.5 electric Prop

RimFire 250
GPMG4502

RimFire 250

  • Includes prop saver, prop adapter and motor mount.

motor dimensions

Stock No.
GPMG4502
Diameter
28 mm (1.1 in)
Length
13 mm (0.51 in)
kV
1750
Constant Watts
90
Burst Watts
120
Weight
20 g (0.71 oz)
Shaft Diameter
3 mm (0.12 in)
Voltage Range
7.4-11.1V / 2-3S LiPo
Sport
225 g (8 oz)
3D
140 g (5 oz)
Power System Recommendation
8 Amp ESC, 2S LiPo, 7x6 to 8x4 Slow-fly Prop

RimFire 300
GPMG4505

RimFire 300

  • Includes prop saver, prop adapter and motor mount.

motor dimensions

Stock No.
GPMG4505
Diameter
28 mm (1.1 in)
Length
22 mm (0.87 in)
kV
1380
Constant Watts
100
Burst Watts
150
Weight
27 g (0.95 oz)
Shaft Diameter
3 mm (0.12 in)
Voltage Range
7.4-11.1V / 2-3S LiPo
Sport
395 g (14 oz)
3D
255 g (9 oz)
Power System Recommendation
12 Amp ESC, 3S LiPo, 8x4.5 to 10x4.5 Slow-fly Prop

RimFire 370
GPMG4525

RimFire 370

  • Includes prop saver, prop adapter and motor mount.

motor dimensions

Stock No.
GPMG4525
Diameter
28 mm (1.1 in)
Length
26 mm (1.0 in)
kV
1000
Constant Watts
135
Burst Watts
165
Weight
41 g (1.4 oz)
Shaft Diameter
3 mm (0.12 in)
Voltage Range
7.4-11.1V / 2-3S LiPo
Sport
595 g (21 oz)
3D
370 g (13 oz)
Power System Recommendation
12 Amp ESC, 3S LiPo, 9x4.5 to 10x4.5 Slow-fly Prop

RimFire 400
GPMG4560

RimFire 400

  • Includes prop saver, prop adapter and motor mount.

motor dimensions

Stock No.
GPMG4560
Diameter
28 mm (1.1 in)
Length
30 mm (1.2 in)
kV
950
Constant Watts
160
Burst Watts
220
Weight
54 g (1.9 oz)
Shaft Diameter
3 mm (0.12 in)
Voltage Range
7.4-11.1V / 2-3S LiPo
Sport
905 g (32 oz)
3D
565 g (20 oz)
Power System Recommendation
25 Amp ESC, 3S LiPo, 8x6 to 10x4.5 Slow-fly Prop

RimFire .10
GPMG4595

RimFire .10

  • Includes prop adapter and motor mount.

motor dimensions

Stock No.
GPMG4560
Diameter
35 mm (1.4 in)
Length
30 mm (1.2 in)
kV
1250
Constant Watts
325
Burst Watts
390
Weight
71 g (2.5 oz)
Shaft Diameter
4 mm (0.16 in)
Voltage Range
7.4-11.1V / 2-3S LiPo
Sport
1360 g (3 lbs)
3D
905 g (2 lbs)
Power System Recommendation
35 Amp ESC, 3S LiPo, 10x4.5 to 10x7 Electric Prop

RimFire .15
GPMG4620

RimFire .15

  • Includes prop adapter and motor mount.

motor dimensions

Stock No.
GPMG4620
Diameter
35 mm (1.4 in)
Length
36 mm (1.4 in)
kV
1200
Constant Watts
500
Burst Watts
650
Weight
102 g (3.6 oz)
Shaft Diameter
4 mm (0.16 in)
Voltage Range
11.1-14.8V / 3-4S LiPo
Sport
1815 g (4 lbs)
3D
1135 g (2.5 lbs)
Power System Recommendation
45 Amp ESC, 4S LiPo, 10x7 to 11x7 Electric Prop

RimFire .25
GPMG4675

RimFire .25

  • Includes prop adapter and motor mount.

motor dimensions

Stock No.
GPMG4675
Diameter
42 mm (1.7 in)
Length
40 mm (1.6 in)
kV
1000
Constant Watts
650
Burst Watts
740
Weight
125 g (4.4 oz)
Shaft Diameter
5 mm (0.2 in)
Voltage Range
11.1-14.8V / 3-4S LiPo
Sport
2040 g (4.5 lbs)
3D
1360 g (3 lbs)
Power System Recommendation
45 Amp ESC, 3S LiPo, 11x8.5 to 12x6 Electric Prop

RimFire .32
GPMG4700

RimFire .32

  • Includes prop adapter and motor mount.

motor dimensions

Stock No.
GPMG4700
Diameter
42 mm (1.7 in)
Length
50 mm (2.0 in)
kV
800
Constant Watts
850
Burst Watts
1480
Weight
198 g (7 oz)
Shaft Diameter
5 mm (0.2 in)
Voltage Range
11.1-14.8V / 3-4S LiPo
Sport
2950 g (6.5 lbs)
3D
1845 g (4 lbs)
Power System Recommendation
45 Amp ESC, 4S LiPo, 12x6 to 13x8 Electric Prop

RimFire .46
GPMG4725

RimFire .46

  • Includes prop adapter and motor mount.

motor dimensions

Stock No.
GPMG4725
Diameter
42 mm (1.7 in)
Length
60 mm (2.4 in)
kV
800
Constant Watts
1000
Burst Watts
1850
Weight
268 g (9.5 oz)
Shaft Diameter
5 mm (0.2 in)
Voltage Range
18.5-22.2V / 5-6S LiPo
Sport
3400 g (7.5 lbs)
3D
2210 g (5 lbs)
Power System Recommendation
60 Amp ESC, 6S LiPo, 10x5 to 11x5 Electric Prop

RimFire .55
GPMG4715

RimFire .55

  • Includes prop adapter and motor mount.

motor dimensions

Stock No.
GPMG4715
Diameter
42 mm (1.7 in)
Length
60 mm (2.4 in)
kV
480
Constant Watts
1100
Burst Watts
1850
Weight
268 g (9.5 oz)
Shaft Diameter
5 mm (0.2 in)
Voltage Range
18.5-22.2V / 5-6S LiPo
Sport
4310 g (9.5 lbs)
3D
2720 g (6 lbs)
Power System Recommendation
60 Amp ESC, 6S LiPo, 13x10 to 15x8 Electric Prop

RimFire .60
GPMG4745

RimFire .60

  • Includes prop adapter and motor mount.

motor dimensions

Stock No.
GPMG4745
Diameter
50 mm (2.0 in)
Length
55 mm (2.2 in)
kV
650
Constant Watts
1200
Burst Watts
2200
Weight
298 g (10.5 oz)
Shaft Diameter
8 mm (0.31 in)
Voltage Range
18.5 - 22.2V / 5-6S LiPo
Sport
4705 g (10.5 lbs)
3D
2950 g (6.5 lbs)
Power System Recommendation
60 Amp ESC, 6S LiPo, 12x6 to 13x4 Electric Prop

RimFire .80
GPMG4740

RimFire .80

  • Includes prop adapter and motor mount.

motor dimensions

Stock No.
GPMG4740
Diameter
50 mm (2.0 in)
Length
55 mm (2.2 in)
kV
500
Constant Watts
1300
Burst Watts
2200
Weight
298 g (10.5 oz)
Shaft Diameter
8 mm (0.31 in)
Voltage Range
18.5 - 22.2V / 5-6S LiPo
Sport
5215 g (11.5 lbs)
3D
3175 g (7 lbs)
Power System Recommendation
60 Amp ESC, 6S LiPo, 15x6 to 15x8 Electric Prop

RimFire 1.20
GPMG4770

RimFire 1.20

  • Includes prop adapter and motor mount.

motor dimensions

Stock No.
GPMG4770
Diameter
50 mm (2.0 in)
Length
65 mm (2.6 in)
kV
450
Constant Watts
1800
Burst Watts
2300
Weight
400 g (14.1 oz)
Shaft Diameter
8 mm (0.31 in)
Voltage Range
18.5 - 22.2V / 5-6S LiPo
Sport
6520 g (14.5 lbs)
3D
4080 g (9 lbs)
Power System Recommendation
80 Amp ESC, 6S LiPo, 16x6 to 17x8 Electric Prop

RimFire 1.60
GPMG4795

RimFire 1.60

  • Includes prop adapter and motor mount.

motor dimensions

Stock No.
GPMG4795
Diameter
63 mm (2.5 in)
Length
62 mm (2.4 in)
kV
250
Constant Watts
2500
Burst Watts
3200
Weight
634 g (22.4 oz)
Shaft Diameter
8 mm (0.31 in)
Voltage Range
33.3 - 44.4V / 9-12S LiPo
Sport
9070 g (20 lbs)
3D
5445 g (12 lbs)
Power System Recommendation
80 Amp ESC, 12S LiPo, 16x8 to 18x8 Electric Prop

RimFire 50cc
GPMG4800

RimFire 50cc

  • Includes prop adapter and motor mount.

motor dimensions

Stock No.
GPMG4800
Diameter
80 mm (3.1 in)
Length
75 mm (3.0 in)
kV
230
Constant Watts
5000
Burst Watts
6500
Weight
1250 g (44.1 oz)
Shaft Diameter
10 mm (0.39 in)
Voltage Range
33.3-55.5V / 9-15S LiPo
Sport
12.7 kg (28 lbs)
3D
8.17 kg (18 lbs)
Power System Recommendation
120 Amp ESC, 12S LiPo, 22x8 to 26x10 Prop

RimFire 65ccGPMG4805

RimFire 65cc

  • Includes prop adapter and motor mount.

motor dimensions

Stock No.
GPMG4805
Diameter
80 mm (3.1 in)
Length
85 mm (3.4 in)
kV
160
Constant Watts
6500
Burst Watts
8400
Weight
1480 g (52.2 oz)
Shaft Diameter
10 mm (0.39 in)
Voltage Range
33.3-55.5V / 9-15S LiPo
Sport
19.1 kg (42 lbs)
3D
11.79 kg (26 lbs)
Power System Recommendation
120 Amp ESC, 12S LiPo, 22x10 to 26x12 Prop

Brushless Outrunner Motor Mount

Brushless Outrunner Motor Mounts

GPMG1200Small 28 mm motors
GPMG1205Medium 35-42 mm motors
GPMG1210 Large 50-63 mm motors

Outrunner Prop Adapter

Outrunner Prop Adapters

GPMQ4903Prop Adapter for 35 mm Dia Motor
GPMQ4906Prop Adapter for 42 mm Dia Motor
GPMQ4909Prop Adapter for 50 mm Dia Motor
GPMQ4912Prop Adapter for 63 mm Dia Motor

Resources


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
GPMG4500Rimfire 370 - GPMG4525
GPMG4530Rimfire 370 - GPMG4525
GPMG4535Rimfire 370 - GPMG4525
GPMG4555Rimfire 400 - GPMG4560
GPMG4565Rimfire 400 - GPMG4560
GPMG4570Rimfire 400 - GPMG4560
GPMG4590Rimfire .10 - GPMG4595
GPMG4600Rimfire .10 - GPMG4595
GPMG4615Rimfire .15 - GPMG4620
GPMG4625Rimfire .15 - GPMG4620
GPMG4635Rimfire .25 - GPMG4675
GPMG4640Rimfire .25 - GPMG4675
GPMG4645Rimfire .25 - GPMG4675
GPMG4650Rimfire .25 - GPMG4675
GPMG4655Rimfire .25 - GPMG4675
GPMG4670Rimfire .25 - GPMG4675
GPMG4695Rimfire .32 - GPMG4700
GPMG4705Rimfire .32 - GPMG4700
GPMG4720Rimfire .46 - GPMG4725
GPMG4765Rimfire 1.20 - GPMG4770