a must have in every tt-01, if you have one of these, you don't want an plastic shaft anymore, the acceleration of you car is much faster, and the topspeed is higher. i say you have to buy one, and it doesn't matter wich motor you are using it with,
Before putting a more powerful motor in your TT01, this is one of the upgrades that you must buy! It is a whole lot stronger than the original plastic propeller shaft which is quite easy to bend and prone to warping under high power motors.
And on top of all that, who doesn't love the bling that anodized aluminum adds to your chassis!