ERS Main Metric Dia. 2.75 in Len: 7.87 in Rate: 514 lbs in ERS Main Metric Dia. 2.36 in Len: 2.56 in Rate: 343 lbs in R10023 EIBACH Single Spring ERL (OE Replacement) Coil spring Front Axle EIBACH 0400.250.0700 01 ERS LINEAR MAIN SPRING eBay Eibach USED ERS Main Spring (Coilover) 7" Length 2.25" ID 1000lb 0700. Eibach ERS Main Spring (Coilover) 6" length 2.25" ID 700lb 0600.225.. Eibach's ERS line has evolved over the years to be the world's most prominent, comprehensive and superior Race Spring System. Eibach Race Springs are all manufactured in series production, often repeated, with a strong manufacturing experience. Thus, Eibach constantly achieves the most linear spring characteristic (rate) while maintaining the lowest tolerances and the highest quality in the industry. Eibach's ERS line has evolved over the years to be the world's most prominent, comprehensive and superior Race Spring System. Eibach Race Springs are all manufactured in series production, often repeated, with a strong manufacturing experience. Thus, Eibach constantly achieves the most linear spring characteristic (rate) while maintaining the lowest tolerances and the highest quality in the industry. Standard Features Eibach Coilover Springs Designed Specifically for Legend & Midget Racers Maximum Travel in Combination with Smallest Block Heights Ultra Lightweight for Reduced Unsprung Mass Each Spring Individually Tested Highest Linearity and Guaranteed Consistency Specifications Part Number 0800. 188. 0065 Part Name Coil Spring UPC 00803050545022 Spring Type Linear Length 8 in. Diameter 1. 88 I. D. Spring Rate 65 lbs in Block Height 2. 05 in. Travel 5. 95 in. Block Load 386. 75 lbs. Individual Coilover Spring Notes Without QuadraSteer