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  • 23/11/2020

    Nice Engines...lowcost,lowweight,lownoise...and they Work on 4S😁🚀. powefull

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  • 11/02/2018 Our review and thrust tests of this motors. Propellers used : Dalprop T3032: Tarot 3031: Geprc 3042: Gemfan 3035 Bullnose: DYS 3045: KINGKONG/LDARC 3x3x4: Kingkong 4045:

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  • 10/12/2017

    Had the emax 4000kv motors on my old Diatone et150 frame before installing these bad boys on my quad these motors offer loads more punch by far on 4s battery with 3inch props. Worth the money just for the kick a loan doing a punch out. Only down side is the weight with government regs coming in next year trying to keep the quad weight to under 250g is challenging with a 4s battery and a runcam split on board. Might try 4inch props with a 3s battery to see if l get the same amount of punch with a bit less weight.

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  • 24/11/2017

    Great motors build quality is good. Using them on 130 quad I just built. Tested on 2s 3s and 6minutes on 4s (motors barely warm). Looking forward to my new 4s batteries turning up. Very quick! Well happy!!

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  • 08/03/2018

    Heavy motors at 29 grams each. I tested several props including triblade 3" inch 3140 by King Kong and they perform worse than 4" inch triblade bullnose. 4" inch bullnose give the most punch but motors take time to spin up with these heavy props. I'm currently using 4040 dual blade props but I paired these with lighter 4" inch tri blade props and they give the best flying experience and flight times. Cons: They make some rattling noise that sounds like it's from the bearings (My props cut down from 5" inch). Sounds like a magnet is loose and bouncing around when motor turns. They are on the heavy side if you're worried about weight. Pros: Affordable. Red color matches my M3 standoffs. Will handle 4s with tuned PIDs. Any motor will overheat if your "D" gains are too high and motors oscillate. My goal was to get a nice flying cruiser to practice freestyle acro and these are perfect for that. Over 9 minutes of flight time using an oversized 1500mAh 3s in freezing cold weather. 10+ minutes of flight time are possible with these motors.

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  • 28/04/2017

    Iam really impressed of this motors. I got them on my 130 3" build and run them on 4S without any problems, they got barely warm with 3030 quadblade props. Magnets are really strong and the punch is awesome. Just bought 2 more set's for my 165mm hexa :) I can highly recommend them

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  • 05/03/2018

    Get Sky High with these fab motors ! plenty punch to make you hit the sky before you can blink ! Nice smooth bearings in all 4, look well and are an essential upgrade to some of the older motors out there if you want to get a large bit of excitement into your flights. Running on 3s and they are better than i expected. Highly Recommend. Ive fitted them to the HX160 (Diatone copy) frame here and its the most stable flyer (using F3 evo controller ) ive built to date.

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  • 03/11/2017

    These are outstanding quality and value for the money! They even come factory balanced and have tons of power on 4S with a 3" prop on a 120 /130 size frame! Definitely recommend!

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  • 21/12/2017

    je ne vais pas m’étendre sur les moteurs racerstar, si vous avez de la chance vous aurez un set de 4 moteurs avec les mêmes specs. visiblement sur les 1407, la qualité semble plus constante (2ème achat de BR1407) mais je ne parierai pas sur les roulements. en 1407 à ce prix, de toute façon il n'y a pas trop le choix pour le moment et ces moteurs en 3500kv sont très versatiles 2S/3S/4S donc un bon achat si vous voulez limiter le prix de vos montages et/ou les réutiliser sur d'autres frames. des fils plus longs svp

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  • 20/06/2017

    one of the four motors that i received has too much play in it. i think it's the bearing but not sure. i went ahead and installed them and once armed and running they sound nice. for the price i can't complain really and overall im happy with them. oh yeah i should also say that on my 130 quad (257 grams total weight) these things are a Power House.

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