My front forks are too springy for my liking. I'm going to replace the stock springs with the Ikon Progressive fork springs. According to my service manual the stock fork oil is 10w. I see Motul also sells a 15w. I was wondering what other members have used. Probably going to just order the 10w unless someone can give me a reason why the 15w is better. Should I also assume 1 liter is enough for the swap out?
