Trouble is they seem to come in slightly different rates depending on the market. I know my 2003 EC250 came with heavier springs than the US counterpart.
The rear spring is easy as it's clearly painted on the spring. The front will have to have the spring removed to determine. Ohlins springs are engraved with the rate on the end of the spring. WP, if I remember correctly are not marked making it difficult.
Most WPs seem to come with .52 springs though...at least the ones up here.
