suspension upgrade

Aside from rebound and compression, you can reduce the preload in the front a bit, stock its set up for around 180lbs rider. The rear spring rate is is intended for carrying a passenger, so no preload adjustment is possible without changing the spring to a softer one, but then you won't be able to carry a passenger without cranking up the preload first or the rake and trail will be out to lunch and the bike will handle poorly. I looked into this myself because I'm ~185lbs and there is no sag in the rear at all. The main thing upgrading to an Ohlins will do is reduce the amount the suspension softens after racing for a few hard laps on a track. Hope this helps.