Product Details High stiffness-to-mass ratio, shot-peened, heat-treated and preset chrome silicon steel Accurate rates to within 2% Accuracy and performance Product Videos Custom Field Product Reviews Write a Review Write a Review × Race Tech Race Tech FRSP 434842 - Fork Springs - 0.42 kg/mm Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *