I dunno why i said bethpage. I guess i was too tired to think properly. I meant mineola as it's in a cheaper fare zone...
Google says its about an hour, 12.4 miles. Lose 128 feet to, and gain 128 back from. Mostly gentle grades in between. My guess is that on a proper bike you may be able to cut that time down to under 50 minutes. I've gone lil over 8 miles on a "wall" route here in 40, the wall hill is in the middle with much lower elevations to either side.
If i had a bike more built for road/speed vs utility i'd hop up there and test out the route (syosset town center to mineola station) myself for you.
Elevation profile:
http://prntscr.com/3gxdw8
- Andy