Looking at the cues, I notice the routes are completely different, so there are no "splits" to deal with. Your best bet is to download and print the route, just in case no one else does the 25. It is highly unlikely you are the only one, however. The 25 mile ride has lots of turns, but is quite flat.

Here's a shorter route that is a split off the longer route with common sections at the start and end.
http://ridewithgps.com/routes/509873