X-Factory slipper shaft brass flywheel

X-Factory have announced the release of this brass flywheel for the slipper shaft of most 1/10 off-road cars, especially mid-motor cars. With the development of brushless motors, then the introduction of sintered rotors, and now high-discharge LiPo batteries, the torque effects can actually be too much in some spots on some tracks, usually in the infield. Sometimes the car can pitch too violently under power and particularly on brakes with weight transfer between throttle and brakes at times can exceed the rear tires’ grip. The flywheel bolts right on the slipper shaft, therefore rotates opposite to the motor and wheels, smoothing everything out.  On high traction surfaces where the tires have excellent grip, the part is not needed so much, and sometimes a lighter flywheel will provide just the right effect.  Which is why they have center-punched a dozen holes in the periphery of the weight and supplied the proper drill bit so you can lighten the part to fit your track. Drilling three holes takes out about 1/2 gram from the 15-gram part.

Source: X-Factory [xfactoryrc.com]