I have a 03 Adventure with a white spring on the rear with the numbers 140-255 printed on them. The rear feels a bit too firm. Is this the standard spring for this year bike? I have adjusted the remote preload back and on and it seems to not affect it. I am 75kg, mabey 80 fully kitted up. Most of my riding is solo so want it a bit more cushy on the rear. Cheers.