The benefit of the new chassis is not really the extra weight - although if you added the 40g on top of the std chassis you'd be raising the C of G of the car, and changing the roll moment of the chassis, not just changing the weight.
The real benefit from a one piece chassis on the X2C is that it has much more consistent and controllable flex. The standard chassis not only has a lot of flex overall, but also has additional weak points where the front and rear T-pieces attach. These are extra points of uncontrolled flex, where the material does not influence the flex but the inherent weakness in a junction. Using a single continuous chassis gives much more precise control, giving a better response during cornering and also over bumps. It allows the chassis to be made stiffer for better response and consistency yet still retain the same bump compliance.
The main characteristics that everyone who has tried the conversion reports is that the car has better steering response (despite being longer than the standard car), generates more overall grip, has greater consistency and even better rear traction than the standard car.
It also has more setup options - moving the cell placement to change the weight distribution, raising the side plates to change the chassis flex and the option to change the rear anti-squat and lower roll centre. There is also greater development potential, which is something we'll be looking at over the next few months.
The standard car is very good, we just feel that this conversion makes the car better and as such is worth making available to the general public not just a handful of lucky drivers!
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