1x complete set for converting the Nimbus 550 to Nimbus 650.
Max blade length: 650mm (95mm tail blades)
Recommended blade length: 580 - 620 mm
For low RPM and aerobatic/smooth 3D (no hard 3D).
Max. head speed (for blade lengths over 580 mm): 2100rpm
Max. number of cells: 8S LiPo