I Currently ride a Kaw ZR7s Will be upgrading to a DL 650 this year.
The Seat on the ZR7 Sucks.
I tried the beads.. did not work for me at ALL.
I got an Airhawk I LOVE IT !
I did a 3 day trip recently through NC, WV and VA
My Butt felt great the entire time, not one incident of soreness.
Before, I wouldnt have lasted 2 hours.
for me it Makes the entire experience much better, when you rear isnt sore and your happy, it prevents the rest of your body from getting unhappy too.....
Kinda like this, you know when you wear earplugs, you get off after a day ride and you feel fine. But if you didnt wear earplugs you feel like someone hit you in the head w/ a 2 x 4.
Same thing with your butt..
airhawk : you get off the bike and feel great.
it's pricey but well worth it in my book
I paid 150.00 at Autumn Gold Motorcycle supply..just do a google search for them fast and friendly
best of luck