Best suspension mods?

[Tev62]

I have a 2017MY EX which I believe has slightly different suspension from the earlier models but before you do anything I would get the pre-load setup nicely. If you are anything over the weight of an average Japanese fella I would add one or two notches up on the rear pre-load and back off the front forks one ring of pre-load too (from stock settings). It sharpens the bikes handling up no end as you have effectively shortened the bikes trail up front. Changing the tyres can also have a significant impact on the sharpness of steering. I swapped out the stock tyres for T31's and the difference was to significantly sharpen up the front end, a little too much in the end. I was able to add almost all of my front pre-load back and still get a great handling bike.

I know I am a little off your original query on the suspension being too soft for your liking and pre-load will do nothing to address that of course but it is fundamental to get the bikes stance on the road correct before addressing the damping side of things, to my mind anyway. Use the forum search tool, I believe a good few owners went for cartridge kits in the forks and Ohlins STX rear shocks which made a difference to them.