.47 spring rate fork springs for the DR650, these would also fit a DRZ 250. Procycle says these are 24% stronger than the stock springs which I think are .39 spring rate.
These were fitted to my DR650 for about 20,000km’s but I’ve now gone heavier as I got heavier and fitted a 30 litre Safari tank.
Stiffer springs are shorter than stock ones so you have to add spacers to make up to the original spring length/preferred preload amount. I’ve included a few lengths of plastic tube for setting preload but you may need to source and supply your own as how much preload is required is rider weight/riding style/bike setup specific. The preload tube that came with the springs originally was just clear plastic stuff so anything of a decent thickness from Mitre10 will do.
$100 pickup from Welcome Bay, Tauranga.
First to reply on this thread below that they want them gets them.