Funny, I had found the same spring & have orderd the 950lb version since I plan on a 2" swing arm extension & some two up riding if the bike transport company ever brings me the bike
I have the R1 shock, a spare swingarm, some Fastway pegs, Honda CRF brackets all waiting on a bike to put them on.....
__________________
No matter how big and bad they get, if a two year old hands a biker a toy phone, they will answer it