Black/pink primary spring, whats its specs?

[Coxy]

Just wondering the rates on this spring. The best i can find via google is that it in theory is a SLP spring with 120/340 rate, but seeing as i have no clue about springs, maybe theres more black/pinks out there?
I aquired it to try in my sled, only think i know is that it came out of a polaris...
Thanks guys
Brian

 

[stonehands]

Yes as far as I know only one black/pink. SLP 120/340. Same as Polaris Black/Green which was stock in 05 900 among others.

 

[Coxy]

Haha, thats awesome to hear. Wanted to try something stiffer (finish) in my 09 m8, but anything i could find off hand were all stiff starting too. I heard good reports of guys going from a 120/285, to a 120/310-330's, so hopefully its a good one.

 

[longhairfreak]

youll need more weight with a stiffer finish.

 

[Coxy]

Im about 3-400rpm shy of being close to "target" R's. This might be a bit stiff, i am unsure what negatives there are about going this route, but ive been told it could help the rpm hunting through a climb as well, as well as bringing up r's.

 

[longhairfreak]

It will work youll just need to find the right weights. Each 20 lbs of increased finish will give you about 200 rpms. Did you change your helix by chance? Im wondering why you are so far off your target rpm.

 

[Coxy]

Hmm, okay, so depending on a bunch of stuff, i could be right at target, or a tad over reving with this spring. Im really not too sure why its as off as it is, and i havent changed anything other then venting, and can. In theory then its a bit too much spring, but it will give me a good idea next time out, when i got er loaded down in pow at 7500'
Thanks for the info