There's a thread going on at the shock forum about a Ti spring upgrade for the Z1. I called up Renton Coil Spring, who makes custom Ti springs and asked how much it is to develop and what the cost is. Turns out that if 20 sets were ordered they would go for ~$75 a spring, cheaper if there's more interest. Keeping in mind the appetite for upgrades and frankenforking on this forum, I am openly asking if there is any interest. I am interested in getting a set for my 2004 Z1 FR, and I am wondering if AM1 (the 110-130 version) uses the same spring? And whether there are others? (JNC, SSINGA?) Any interest?