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click thumbnail to enlarge photos of AXi 4120/14 v2

The latest AXi 4120/14 v2 comes from one the finest range of brushless electric motors available, from Model Motors in Czech Republic. AXi v2 motors in the 41xx/xx range now include a radial mounting kit and prop adaptors for either end of the motor. The 4120/14 is one of the fiercest winds of the 4120 series available and offers a maximum output power of approximately 950W on propellers up to 14". The integrated hardened 6mm steel shaft is supported by 3 ball bearings.

The 4120/14 is suitable for a wide range of models, supporting slow-flying trainers or vintage models up to 3.8kg (134oz) and sailplanes up to 4.8kg (169oz) or aerobatic models up to 2.9kg (102oz). The relatively high RPM/V of the 4120/14 makes it suitable for models with shorter undercarriages where the maximum achievable propeller diameter can place limitations on the possible power train options.

Includes radial mounting kit and prop adaptors for front or reverse mounting.

All AXi v2 motors are made by Model Motors in Czech Republic.

Other AXi motors in this series: AXi 4120/18 v2AXi 4120/20 v2

Recommended brushless power setups for AXi 4120/14 v2.
Need help finding a brushless motor setup? Try our motor calculator tool.

Model Model Weight Cells Max. Current Jeti ESC Propeller
Trainer 3500g (123.5oz) 4s 55.0A/60s Jeti Spin Pro 75 Opto 13" x 8"
Trainer 3800g (134.0oz) 5s 55.0A/60s Jeti Spin Pro 75 Opto 12" x 6"
Aerobatic 2900g (102.3oz) 5s 55.0A/60s Jeti Spin Pro 75 Opto 12" x 8"
Sailplane 3200g (112.9oz) 3s 55.0A/60s Jeti Advance 70 Pro SB 15" x 9"
Sailplane 4200g (148.2oz) 4s 55.0A/60s Jeti Spin Pro 75 Opto 14" x 7"
Sailplane 4800g (169.3oz) 5s 55.0A/60s Jeti Spin Pro 75 Opto 12" x 8"

Do not exceed the recommended propeller sizes.

Technical Details for AXi 4120/14 v2

No. of cells (LiPo)4-5
RPM/V660 Kv
Max. Efficiency85%
No load current2.0A
Maximum Load55.0A
Internal Resistance0.410Ω
Diameter49.00mm (1.93")
Length54.00mm (2.13")
Shaft Diameter6.00mm (0.24")
Max. Efficiency Current20-40 A (>82%)
Glow Equivalent7,5 ccm / .46 - 2stroke .65 - 4stroke
Weight315.0g (11.1oz.)
£109.95
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