ERS Linear Main Spring Dia. 1.88 in Len: 8.00 in Rate: 300 lbs in Eibach ERS Spring Series 57 x 57 x 175mm (700.225) Eibach Race Off Road Dia. 2.50 in Len: 14.00 in Rate: 250 lbs in Eibach Race Off Road Dia. 2.50 in Len: 8.00 in Rate: 150 lbs in. 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