Rates for AC black/orange primary spring

[Flange]

Does anyone know the actual rates for the black/orange primary spring in the 2010 M8's?

 

[killerrf]

this spring is replacing the cat orange/white primary. this spring is a 140/290 rate.

 

[Flange]

Thanks. Any idea why they are making the change?

 

[mmsports]

New Vendor

That is why new color.