Hi: I'm placing a throttle return spring on my OFNA BMX but do not think what I have is adequate. I'm using the spring from a pen but I don't think it is strong enough to pull the servo back if it looses power. Does anyone have any suggestions for something better? I did place a fail safe on it but have heard that these are not fool proof, especially if you loose power!

They do make actual throttle return springs, but Im not sure which size you would need for the buggy. I have tried using a rubber band and it works really well once you set it up right, plus they are cheap.

they should come with the engine