XRAY 4S Spring Set Progressive C=2.5-2.8 (2) fun 5 X 120MM Honeycomb

5 X 120MM Honeycomb

Power Wires - 12Awg

Fully assembled gear differential is 2g heavier then the ball differential

The starter wheel can be mounted on both right or left side

XRAY 4S Spring Set Progressive C=2.5-2.8 (2) fun 5 X 120MM HoneycombThe main advantage and benefit of progressive springs is that as the car initially enters the corner they work like a C2. 5 spring to provide maximum traction. At the same time, when the chassis begins to roll, in the middle of the corner, the spring rate progressively increases until it works like a C2. 8 which allows the car to maintain maximum cornering speed. The 4S springs, like all the other XRAY springs, are manually measured, selected and