Too get this straight.... this shock comes pre-adjusted based on the weight you provide when ordering, correct? How is the Penske shock adjustable if you want to carry a passenger and\or luggage? It looks like you'll have to get in the wheel well with a spanner wrench to move the collars..? Which seems like a major pain in the ass.
I ask because, I constantly have changing loads and if I don't adjust for it, even with my bike at the factory ride height, I feel a big difference in handling and will scrape the crap out of my pipes if I take a pillion and the shock is at my solo riding pressure.
MBX basically gave the best answer I think or you could set it a little lighter to find a happy medium. I guess it depends a lot on your passengers weight and how much extra weight your luggage is.
The shock is also progressive so the more weight on it the more progressively tight the spring becomes. I haven't had a chance to test it with a passenger and have no idea when I will. I have no concerns about added luggage/trunk/etc. though.
I still can't see how those shocks fail. Mine has been up and down my crapped rutted and generously pot holed mile of dirt road for 124,000 miles and still works fine. I run it around 40 PSI and fill it very carefully.
I don't know either; only that two of them have gone bad on me. After I removed the stock air shock I put it on a table. The next day oil had somehow leaked out all over the table so apparently a seal went bad.
Now I did live in a very hot dry climate where it frequently gets into the 120's and gets over 110 every day for months at a time. That climate is brutal on anything fabric, plastic, or rubber.
I too was careful filling it up using a Fox hand pump made just for filling air shocks. I ran it at 50 psi because I have the bike lowered one inch in the back.
It really does feel like a new bike the way the back end feels now. I'm highly motivated to rebuild the front end with new seals and oil now to see if I can get back that new front end feel.
As we know; suspension deteriorates at such a slow rate we can't tell it has gone bad. We simply get used to the change as it slowly happens. We only notice the difference after putting in a good shock or rebuild the front forks or upgrade them. You would likely notice the difference far more than most due to the dirt road you ride on so often.
I like that this Penske shock is rebuildable indefinitely. To my knowledge; no one is rebuilding the stock air shocks. If someone does; I'll send them mine so I have a good one to put back on the bike when or if I ever sell this bike because I can sell most the addon parts for a lot more than selling them with the bike. I'll probably pass on to the next life still owning these bikes though. No intention of selling either one. Till the wheels fall off as they say.