These two passes came in very handy last year and more than paid for themselves, so I have renewed both.

The National Park pass I purchased (the Annual Pass) is $80 and grants you free access to National Parks as well as BLM, FWS, Reclamation and FS lands that charge entrance or standard amenity fees. A bonus feature for motorcyclists traveling together: the pass allows two motorcycles free access if the two drivers sign the pass and arrive at the same time. I used this feature last year on my Glacier Park Tour.
The Discover Pass, the name for the Washington’s State Park Pass, is $30 and allows free entrance to state parks. This pass can be used for two vehicles, but only for one at a time. So motorcyclists can put their bike’s license plate designation along with their car’s (for when friends or family come and you have to take the car).
Notes:
(1) For older riders, the National Park Pass variation called the Senior Pass, is only $10 and never expires! Available to those 62 or older.
(2) The National Park Passes are only available to permanent residents and citizens 🙁