No cons that I saw as yet. I bought a FAKE Syma (looks and feels the same, just not same quality) and landed it upside down, breaking the white plastic prop mount. In this set there are four of those and they fit perfectly. Warning: don't press too tightly, you will lock the axle into the axle sleeve. Allow about 1mm of wiggle/play. Very happy with these spare parts - too bad there's like 28 tiny, easily damaged screws in the quad's body to remove before I can reach them :P
Verified purchase: Yes | Condition: New
Works great, as I was using it to redo a gear that I stripped out, I wish there was more information regarding the diameter of motor gear and drive gear. But... slight modification to where the motor sits and everything lined up great.
Verified purchase: Yes | Condition: New
Motor and gear housings indefinite plus compared to the older models. It has smaller gears and the motor is all in one similar faster RPMs with longer bladder blades gives its stability in the wind word previous models shorter more pitched propellers made it or a strong wind would pick it up and take it away these are much better product than the x5c one originals. I have about 30 coppers and this one is my most favorite to fly except for a couple of mine brushless motor quadcopters. A longer flutter blades give a more stable flight for recording video. Super durable.
Verified purchase: Yes | Condition: New
The spare gears came just as I needed them for one of my drones. They worked just like the old ones. I highly recommend them for your spare parts kit.
Verified purchase: Yes | Condition: New
Very good product to fix up your Syma quadcopter (or chines copy Eashine). Fits as described. Easy to work. I recommend.
Verified purchase: Yes | Condition: New
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