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  • 15/10/2021

    Finally the gear arrived, it looks good quality.

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  • 15/04/2020

    Parts are coming in good Condition. I hope the Aluminium gears are strong enough for a helicopter motor. After montage and first flights i give update.

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  • 25/10/2018

    This pinon appears to be OK but I'm not sure of the quality as it is made from aluminium.

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  • 13/06/2018

    Good product!

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  • 16/10/2016

    Nice item, just what I was looking for!

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  • 29/01/2019

    Excellent product, used to reduce RPM of 450 size Heli, increase flying time and improve ESC efficiency (used on Tarot 450 Pro DFC, 3s lip with 3450kv motor and 121 T helical main gear). Great quality product; have used the same before for 2 years without issues, light sport flying but no 3d acrobatics.

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  • 15/05/2015

    хороший металл. крепеж в комплекте. на вал 3,17 мм. бывает нет в наличии, но отправляют сразу как только появляется на складе всё доехало до Сибири менее чем за месяц. Трек правильный - отслеживался до конца.

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  • tomis
    CZ
    23/10/2018

    I use it with Scorpion HKII-2221-6. This combination with 4S LiPo gives the most powerful unit for my TRex 450 SE2

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  • 01/02/2018

    look nice it is 10T helical gear and made up of good material. it is real helpful in reducing RPM of heli.

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  • 05/01/2016

    Purchased this one to get a Headspeed of 2600 U/min with my 450 Pro with an 3350kV Motor. Fits nice and looks good.

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