Syma S107 Speed Mods

As everyone know, Syma s107 is a coaxial featuring stability over speed. But now if you think you manage this rc helicopter well enough, then you may go for the speed mods! The mechanism is making it easier to lean its center of gravity, which is balanced by the flybar, by reducing the balancing effect of flybar. And it is a very easy modification with just few steps.
First, take off the 0.4g weights from flybar, then put the covers and screws back. After dropping the weight, this remote control helicopter would be much responsive and at higher speed, meanwhile remain the rock-solid stability. In addition, it enhances the turning ability greatly.  This is achieved by shifting the shaft in larger angel, and offering more forward forces, thus in a higher speed.
Killbucket’ s black s107 is reli cool! Love it!

Speed Mod 2

Glue a 0.28gram airsoft BB into the nose for pushing the center of gravity a little bit forward. Simple, isn’t it?

Speed Mod 3

By unscrewing the landing skids and move the metal rods forward by 1cm, this further shift the center of gravity forward and give more forward force to the syma s107.

Speed Mode 4

It’ s interesting to increase the forth/back speed by adding one more rear propeller. This is done by pushing the original rear prop down and put the second one on top.
Credit to killbucket & inmotion
Finding s107 spareparts? Check this out!