primary spring force

[Doowithblue]

Anyone have actual spring force numbers other than rhyming off colours or part #s? Ltx-LE

 

[cannondale27]

They will have to be tested since no specs from Yamaha are available.

 

[VX1R]

I found these specs from a previous posting:

55 is the start preload, 105 is the finish preload in KG. The rate is likely 2.0 (but I have not seen that published anywhere yet).

As cannondale27 posted no specs from Yamaha yet, but the above specs are from a reliable Yamaha guru.

 

[jpr-ltx-dx 2015]

rate is 1.5

 

[snowbeast]

All I know is it is the longest Yamaha spring to date,and its .220 wire measured in thousands,one would think with such a long spring with such a thick wire,it would engage much higher than its 2400 rpm does,sense we have been grass dragging it with a bare track on my LTX-LE but in 400 feet up against modded 1000,s they toss us in with,its all over in the first 100 feet,w/out studs,well now I have 192 studs and I needed more engagement,so all of my yammie springs were no match for that clutch set up,except one of my heelclicker all black springs,which raised it 1000 rpms,but unsure what it will do at shift?

 

[Doowithblue]

Even Dalton and venom (Team) don't have that much selection for primary springs. I'm definitely not used to springs this mild at either end. The Tcat Team stuff for 17 seems to be working good.

 

[cannondale27]

I run a short cover spring in my Viper which is supposed to run the long Yamaha springs. Works great so as long as rate is what you need and its making contact both ends the length is not as critical.