Need help on Race tech springs

[Traveler]

Posted on the "for Sale " Board and got no replies......but perhaps you knowlegeable folks over here can enlighten me.
I have a pair of new Race Tech Dirt Fork Springs with the serial # FRSP 3750 46, and the box which shows 36.7x505mm .46kg/mm. I've checked the Race Tech site and can get close, but not a banana in sight.
They are no use to me, but perhaps some dirtbiker out there could use  'em.
Does anyone have a clue to which bike they belong?
Failing this I'll email the Factory and ask......just thought I'd try here first.
Cheers