I'm making a Titanium Main Shaft available for the Helimax Axe CP. The specs are: It is near impossible to bend or break. Light enough not to degrade the stock motors performance in any way. The feature that stands out the most to me, is having a 95% chance of not having to ever replace another one. If you own this heli for any other reason than hovering than I would highly recommend looking in to getting ahold of one of these. The stocker main shaft does not come perfectly true from the factory As shown in the picture by RCU member "outtamyway". This is not mentioned to discredit the company that makes something that gives so much back for the investment. The stock shaft is true enough to work very well , however it is prone to a small intermittent vibration. Besides being annoying, that scenario throws your blade tracking out momentarily. Consequently, you wind up losing a slight amount of lift and cyclic response untill you blip the throttle. This product was birthed from input of RCU forum posts. The rules of these forums do not allow me to let you know if it can be found at RCU's very own marketplace feature. If I tell you where you can't find it, that would be acceptable forum etiquette in high standing so don't look for it on marketplace. The only thing you're allowed to learn here about how much of a dent it will make in your wallet, is that it's priced low even though it's constructed from titanium.