Join Date: Dec 2013
Location: West Coast, North Island, New Zealand
You can safely run any psi in your shocks between 0 and 42. Use a zero loss pump if you can, and never a compressor.
However - in my experience there will be no difference in the ride height no matter what psi you use sorry. For lower height you'll need to install aftermarket shocks.
Paul (Peg) Elliott
New Plymouth, NZ. '10 Voyager 1700
'02 Nomad 1500(sold) '97 VN800B (sold)
2 Honda's, 2 Suzuki's, 1 Yamaha (all dead)