Hey all, I am looking for some advice here. I am no suspension guru, so please be patient.
I recently got an 04 Rm125. I currently weigh in at 150lbs. When I got the bike it had a 5.2kg/mm rear spring in, which was obviously way to hard. The bike comes standard with a 5.0kg/mm spring. I have since tried a 4.8kg/mm spring but I still cannot get the correct sag and static sag. Could it be possible that I still need a softer rear spring? I looked up on MX Action website and they say that a 5.0kg/mm (Standard) should be perfect on the bike and that I should never go any softer than that! With a 4.8kg/mm my sag is 91mm and static sag 48mm!!
So my question... Should I keep going softer on the spring or could there be a problem with the valving on the rear shock? I would like to sort this out, as the bike seems to be very 'choppy' up front!