This is the perfect combination for your latest 250 multi-rotor project from this quality manufacturer of multi-rotor components.

In this combo set you receive 6 x DYS BE1806 2300KV motors, 6 x DYS 20amp BLheli Opto speed controllers, 6 x 6045 propellers, the prop drivers and mounting bolts.

The DYS range of speed controllers have been designed specifically with multi-rotors in mind, fast throttle response, ultra low resistance MOSFETs, small and lightweight, a thicker PCB for better heat dissapation and much more.

This combo delivers both great performance and fantastic value. 

ESC Features:
• Designed specifically for multi-rotors
• Twisted servo cable to reduce interference
• Fast throttle response
• Low resistance MOSFETs
• Small and lightweight
• Thicker PCB for better heat dissapation
• Maximum refresh frequency up to 500Hz throttle signal, compatible with all flight controllers
• High performance capacitor filter

ESC Specs:
Model: 20A Micro Opto multi-rotor ESC
Input Voltage: 2~4S (7.4~14.8V)
Continuous Current: 20 amps
Burst Current: 22 amps
Signal Frequency: 20-500Hz
Output PWM Frequency: 18KHz
Application: Compatible with SimonK & BLheli firmware
BEC: No BEC, opto only
Dimensions: 23 x 12 x 4.5mm
Weight: 7.6g

DYS BE1806 2300KV Motor Specs:
Rpm/V: 2300KV
Voltage: 2~3S (7.4V~11.1V)
Max Current: 8amps
Max Watts: 85W
Shaft Diameter: 2mm
ESC: 10~16amps
Mounting Holes: M2 x 12/16mm
Prop Size: 5 x 3 to 7 x 2.4ins

Test Data:
7.4V with 6 x 2ins prop, 17060rpm/6.5A/48.1W
7.4V with 7 x 2.4ins prop, 17060rpm/7.6A/56.2W
11.1V with 5 x 3ins prop, 25590rpm/6.5A/72.2W
11.1V with 6 x 2ins prop, 25590rpm/7.6A/84.4W

Included:
6 x DYS BE1806 2300KV brushless motors
6 x DYS 20amp Opto speed conrollers
6 x 6045 propellers
6 x Prop adapters
6 x Sets of mounting screws