Need help understanding rear spring part number

[stunter1]

Im looking to buy the stiffest rear yamaha springs for my 08 phazer. I've heard the RTX came with the stiffest of the phazers. I pulled these part numbers form Port Yamaha and dont understand why the "STD" part numbers are more. what is the difference. Is the higher the part number the stiffer? So the 2100's would be what Im looking for? I heard someone say they got 2500's. What year where those from? the list below is from the 2012 Phazers. Please help

68 SPRING, REAR 1 (K=1900NMM/DEG) AP
8GL-47473-00-00 1 $84.34 $70.85


68 SPRING, REAR 1 (K=2100NMM/DEG) AP
8GL-47473-10-00 1 $84.34 $70.85


68 SPRING, REAR 1 (K=1400NMM/DEG) STD
8GL-47473-20-00 1 $178.06 $149.57


69 SPRING, REAR 2 (K=1900NMM/DEG) AP
8GL-47474-00-00 1 $84.34 $70.85


69 SPRING, REAR 2 (K=2100NMM/DEG) AP
8GL-47474-10-00 1 $84.34 $70.85


69 SPRING, REAR 2 (K=1400NMM/DEG) STD
8GL-47474-20-00 1 $178.06 $149.57

 

[Chris600]

As I understand is the 2100 the stiffest. That should be the amount of force that´s needed to turn the spring 1 deg

 

[yamahas]

I think the 09 RTX is a 2500. I am not able to open the parts finder from where I am at right now though.

I was able to open the parts catalog. On the 2009 Phazer RTX the springs are K=2500NMM/DEG.

8GC-47474-00-00 (Right side when sitting on the sled)
8GC-47473-00-00 (Left side when sitting on the sled)

 

[stunter1]

thanks man, bought a used set from a forum member and they apparently were just dropped of at my house

 

[T.S.U.Filmz]

sorry to bring this back but I found some #'s on a set of my springs I picked up. and they don't match what you have for the FX / RTX here is the # on the Right one

8GC-00 R 25-80

what springs are these thanks

TSU