Eibach Platinum Rear Coil Spring - 5.0" OD x 18" Tall - 75 lb. 919140 #2504 and #2506 use #1409/#1410

#2504 and #2506 use #1409/#1410

1-2010 and 2015 Youth Series Helmets

Creates air gap sound barrier to reduce noise

Beaded shell to prevent tires from rolling off

Eibach Platinum Rear Coil Spring - 5.0" OD x 18" Tall - 75 lb. 919140 #2504 and #2506 use #1409/#1410Eibach PLATINUM SERIES race springs are engineered using our proprietary ultra high tensile strength steel, for the lowest physical weights and maximum spring travel. More Travel Deflection than Standard Racing Coil Springs Block Resistant No Loss in Spring Height! Flat Ground End Configuration with Parallel Tolerance to + 1 Degree The Eibach ER Platinum Springs will Maintain Their Dimensions and Rates to Incredibly Tight Tolerances, Lap after Lap,