High Performance SpringExtremely Accurate RatesChrome Silicon, High Stiffness-To-Mass Ratio, Shot-Peened, Heat-Treated and Pre-Set (No Sagging)To Convert KG/MM to LBS/IN. Multiply KG/MM by 55.8Spring Rate: 0.40 Kg/mmFits the Following Husqvarna Models:SM450R (All Years)SM510R (All Years)TC450 (All Years)TC510 (All Years)TE250 (All Years)TE310 (All Years)TE450 (All Years)TX250 (All Years)TX450 (All Years)TX510 (All Years)Fits the Following KTM Models:125 SX 2007144 SX 2007250 SX 2007250 SX-F 2007450 SX-F 2007505 SX-F 2007Fits the Following Yamaha Models:YZ125 2006-2010YZ250 2006-2009YZ250F 2006-2010YZ450F 2006-2009

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