Tune your Firestorm for on-track racing performance! These tuning springs allow you to get exactly the performance you need, and are perfectly matched for the Firestorm 10T.

#86912 SHOCK SPRING 13x57x1.1mm 10coils (3.6lb, Red) #86913 SHOCK SPRING 13x57x1.1mm 11coils (3.3lb, White) #86914 SHOCK SPRING 13x57x1.1mm 12coils (3.0lb, Pink) #86915 SHOCK SPRING 13x57x1.1mm 13coils (2.7lb, Silver) #86916 SHOCK SPRING 13x57x1.1mm 14.5coils (2.4lb, Blue)