102C/108C AND 108EXP SPRINGS FREQUENTLY USED.Color Purple Spring Dia. 2 Outside Spring Height 3-15/32 Wire Dia .192 # of coils 5.3 Lbs Tension when compressedto height of 1-1/8 226 2-3/8 106 Rate of Tensionincrease per additional inch of Compression 96.Actual tensions of springs vary from poundages and rateslisted herein which are only COMET spring tension objectives.Certified spring tensions would cause springs to besignificantly more expensive. Industry standards for springspermit an initial variance of /- 10%. To thesesprings for greater initial tension, up to 3 spring shims part # 203849 may be used with most of them. Bottoming out of a spring coil upon coil even once will hasten itsdeterioration so avoid using 3 shims if the bottoming out condition should result. Most popular models of springs usedon the market.