Brushless Roton motors are produced in Europe.

At first glance the Roton series is not a classic outrunner - however at closer inspection its not. The trick of those motors is that the outrunner lies inside the motor. There is a casing around the outrunner.

But these are not all advantages of the Roton series. It offers in addition:

from 300W power and up 3.5mm goldplated contacts for controllers on its backside (below 600W with normal cables for the connection)
easy cable mounting because there is no need to run a cable from the front of the motor
 
a large distance between the bearings and because of that a smooth and powerful running
a diameter that is nearly as big as the diameter of the rotor
cool running because of the special conduction of air through the motor.

Different models avaliable.

Roton 100w/8
power: 100W
number of cells: 6-9 NiXx / 2-3 LiXx
RPM/V: 1500 
no-load current A/V: 1/10
max. efficiency: 81%
optimal current: 8-14A
current-carrying limit: 15A/30s
internal resistance: 21 mOhm
dimensions Øxl: 27,8mm x 28,5mm
shaft diameter: 3,17mm
weight: 56g
max. model weight (acrobatics - piper - glider): 400g - 500g - 600g
propeller recommendation: 6/4 - 9/4,5 inch
speed controller: Jeti Advance 18 plus
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Roton 150w/8
power: 150W
number of cells: 6-10 NiXx / 2-3 LiXx
RPM/V: 1500
no-load current A/V: 1,2/10
max. efficiency: 79%
optimal current: 8-18A
current-carrying limit: 20A/30s
internal resistance: 12,7 mOhm
dimensions Øxl: 27,8mm x 32,5mm
shaft diameter: 3,17mm 
weight: 66g
max. model weight (acrobatics - piper - glider): 400g - 500g - 600g
propeller recommendation: 8/4 - 9/4,5 Zoll
speed controller: Jeti Advance 18 plus
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Roton 200w/10

power: 200W
number of cells: 8-12 NiXx / 3-4 LiXx
RPM/V: 1240
no-load current A/V: 1,1/10
max. efficiency: 82%
optimal current: 10-20A
current-carrying limit: 22A/30s
internal resistance: 10 mOhm
dimensions Øxl: 27,8mm x 42mm
shaft diameter: 3,17mm
weight: 88g
max. model weight (acrobatics - piper - glider): 800g - 1000g - 1200g
propeller recommendation: 7/5 - 10/5 Zoll
speed controller: Jeti Advance 30 plus

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Roton 300w/10

power: 300W
number of cells: 8-12 NiXx / 3 LiXx
RPM/V: 115
no-load current A/V: 2/10
max. efficiency: 80%
optimal current: 9-20A
current-carrying limit: 25A/30s
internal resistance: 30/76 mOhm
dimensions Øxl: 36mm x 74mm
shaft diameter: 5mm
weight: 156g
max. model weight (acrobatics - piper - glider): 900g - 2200g - 2500g
propeller recommendation: 9/6 - 12/6.5 Zoll
speed controller: Jeti Advance 40 plus

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Roton 400w/12
power: 400W

number of cells: 8-12 NiXx / 2-4 LiXx
RPM/V: 985
no-load current A/V: 2/12
max. efficiency: 82%
optimal current: 9-20A
current-carrying limit: 50A/30s
internal resistance: 27/70 mOhm
dimensions Øxl: 36mm x 51,5mm
shaft diameter: 5mm
weight: 179g
max. model weight (acrobatics - piper - glider): 1200g - 3000g - 3000g
propeller recommendation: 10/6 - 13/8 Zoll
speed controller: Jeti Advance 45 plus