This king pin spring is specified for front-end tuning on Yokomo GT1 and YRX platforms. Supplied as 2 pieces with a 0.50mm wire diameter, the springs are slightly stiffer than stock and adjust steering return and initial camber response without changing principal suspension geometry.
The springs are intended for the GT1 chassis variants and YRX models listed below. Fitting involves accessing the front knuckle assembly to replace the king pin spring; remove the knuckle to change springs and then verify that full suspension travel is unobstructed. The marginally firmer wire produces a firmer initial steering feel that helps the front resist sudden steering deflection on high-grip surfaces.
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