diablo rain?
 

120/70R17 & 180/55R17 Diablo/Dragon Rain SCR2 (Stripe Centre Rib)
so what does the scr2 stand for is this compound?

these seem cheap at 139 a pair, but the only place ive found doing the scr1 is 230 a pair

anybody advise me if the scr2 is a good wet?

SCR2 refers to compound, I believe the 2 means it's a medium compound but someone who knows for sure will be along shortly.

I've never ridden on them but I hear they're quite good.

Race tyres from Pirelli come in the following graded these they apply across there range from slicks through supersport tyres to wets
SC1=Soft
SC2=Medium
SC3=Hard (still softer than your road tyre
No doubt the R is incorporated into the code to stand for rain just as it is with my Rennsport RSR2

I would have no problem with using a SCR2 in the wet on the track its what it was designed for