I know that all bike from factory are set for somebody around 75kg 170lbs . At 6'4" 230, from past bike I know the benefits of having a good suspension setup. From the day one when I bought the bike I started to read here all things about resprings. From stock, If I remember, the es have springs around are 8% less stiff and keeped that in my choice. I bouth the bike in last december, spent a lot of money in farkles over the winter and pickup the bike mid march. I did only one 300km ride before putting the new springs. I went with the racetech .9 for the rear and had stoltec made a .9 also on the front. Did not ride offroad yet and much road yet but look very good to me from first feeling. Weather is crap. Remember, every setup is personnal, we're not equal. If you go that way, remember that the es need a special/different tool than others that can be homemade easily.