dohc wrote: Also, if you do go for the Hagon shocks, the graph in the factory manual suggests the stroke length is 80mm, or 3.15", which is close to the 3.2" listed for the Hagons.
The factory Z1R shocks had a spring rate of 1.8 kg/mm for the initial travel (about half way), rising to 3.0 kg/mm for the remaining travel. I believe this works out to 100 lbs/inch, rising to 168 lbs/inch.
I can post a picture of the spring rate graph from the manual if you'd like.
I'm stubbornly holding out, then, for a set of 2-spring shocks like the original ones. I don't care what condition, right now I put a set of Yamaha RD400 shocks on my Z1R because they're the right length and look about the same cosmetically, but with a single (black) spring.
I'm ready for a pair of any-condition Z1R 1978 shocks to appear.