HyperPro rear spring to fit Curvy rear shock. 195mm length, min ID 48.5mm, max ID 52mm.
I believe it's a non-linear spring as the coil spacing is not constant, & it gives a more compliant ride than the Suzuki standard O/E rear.
I bought it from a forum member a year or so ago, got it blasted & powdercoated in bright yellow....... & then went for a GSXR shock instead.
The HyperPro doesn't fit the GSXR.
Don't know if it'll fit a Pointy's shock.
£12 plus £4 or so for carriage.