I had them in the fronts and rears in my viper, and in the fronts of my 600 XTC. Loved them up front. I ran the dual and triple rate spring up front, and thought the duals worked better. Soaks alot up. As for the rear I had the compression adjustable rears and it never seem balanced enough. In the little sutter bumps it was awsome, but in the bigger bumps it was to soft. As soon as you would crank up the spring pressure it would be good in the big bumps, but to stiff for the sutter bumps. The shocks had dual spring setup on them. I even tried a couple of single spring setups for the rear shock with no improvement. The rear was the big diameter one. This is just my exsperence, and probly should of sent them back to Works for recalibartion to get it right. Other than that I think there a very good shock and would buy them again.
Wolfman