I have a 09 WR125 and the stock spring is a 5.2. I am 195 before gear. Currently I have 17mm of preload on it, static sag is 15mm and sag is about 105. It seems like I could use it but I really would prefer to not use so much preload. I am wondering if I should get a 5.4 or a 5.6? A 5.4 worked for my 06 but I don’t think the leverage ratio is the same on the new bike. For now I think the stock fork springs are OK.