I'd say it totally depends on the bike. Like TLRMan sez, it's pretty much a 'must do' on a TL-R. Going from the 190 to the 180 on my TL-R was solely responsible for me keeping the bike. When I first got it with the 190 on it, I was SOOO bummed that I thought I had made a HUGE mistake. Coupla weeks later, spooned a 180 on, made a coupla suspension adjustments and it was like night and day...
I don't think your bike originally came with a 190...
