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DannoXYZ · March 16th, 2020, 12:12 AM

Great DIY, thanks!

Just a note that spring-rate is determined by wire-diameter and number of coils. When you cut coils from a spring, this increases spring-rate. So your KZ1100 Spectre 0.62Kg/mm springs are stiffer than that now. You can calculate resultant spring-rate based on ratio of before & after lengths.

Also be careful with pre-load amount. It certainly changes bike's behavior independently from spring-rate.

March 16th, 2020, 12:12 AM	#2
DannoXYZ ninjette.org certified postwhore Name: AKA JacRyann Location: Mesa, AZ Join Date: Dec 2011 Motorcycle(s): CB125T CBR250R-MC19 CBR250RR-MC22 NSR350R-MC21 VF500F CBR600RR SFV650 VFR750F R1M ST1300PA Valkyrie-F6C Posts: A lot. MOTY - 2018, MOTM - Nov '17	Great DIY, thanks! Just a note that spring-rate is determined by wire-diameter and number of coils. When you cut coils from a spring, this increases spring-rate. So your KZ1100 Spectre 0.62Kg/mm springs are stiffer than that now. You can calculate resultant spring-rate based on ratio of before & after lengths. Also be careful with pre-load amount. It certainly changes bike's behavior independently from spring-rate.