I am a 80% air commute, but have ridden to work when it's nice. 368 miles one way to JFK.
But that's only really an option April-September.
Last time I rode up, I just had clothes/flight kit in a backpack. I have a 2nd LW Bag at the pad in NYC that I keep for storage there, but will use if I ride to work.
Bike?
1982 Honda CX500 Turbo (look at screen name, it now makes sense)
I've also gone up on my 2003 Bonneville. Same thing.. Backpack with bare min stuff. I keep a full trips worth of everything at the pad and at home.. So I can leave from home on a DDH and if I'm up in NY on the bike, I only have to bring my "lunchbox" with my certs, and my CPAP. All fits in a backpack.