I decided to raise my rear suspension using the original shocks and increase spring preloaad. First I had to figure out how. I tore the shocks down, and found out the shaft is standard thread....... 7/16 x 20. I double and tripple checked, it is standard.
I'm 6'3" 300 lbs, so a little more pre load will keep things from sagging as bad. I also wanted to decrease trail and rake a little. I haven't ridden the bike yet, and if it gets twitchy, no biggie, I can put it back.
Anyone know anything about how these bikes respond to a little less trail?
first step was figuring out the shaft was standard thread, 7/16 x 20.
coupling nut, grade 8.8 bolt measured and cut
loctite
PVC spacer to make up distance and increase preload
reassemble
there is slightly less spring length now (more preload) from highest setting on the unmodified shock, compared to the lowest setting on the modified shock, and I gained about 1.25" height.
total cost, about $10