Can anyone explain what Super Peening  model shaft is coded S2??  Blue-Red-Orange-Brown?

Thx

 

S2 is just a flex designation... does not indicate which color/type

Well, not sure what I just bought.  Hope they are sp blue.  https://buyee.jp/item/yahoo/auction/q167107021

 

Can't really tell from those pics.  My SPB and SPO's don't have any shaft labels on them though.

 

Yeah, I installed an spo in a wedge it too had no label.

Those are not the normal Super Peening that have been on retail.   

It's a regular flex for sure.   Not sure what the bend profile is.    May need to contact Nippon once you have it. 

Likely a stock shaft that were possibly "designed for"