A few recommendations since it seems like you're heading North.
1. Stop in Marble at the bottom of McClure pass.
2. Stop in Redstone for lunch outside on the Crystal River, or if the weather is iffy the hotel is very cool. Gas up in Basalt.
3. OR: go to the Woody Creek Tavern outside Aspen. You never know who you'll run into there, a favorite retreat from the Aspen scene for celebs and reasonable prices - for Aspen.
Take the back road into town instead of 82.
4. Aspen is just plain too cool for school. Mom will love the shopping. Park just about anywhere you want - even on a corner in a posted no parking zone. Don't even THINK of paying for a parking place, just muscle your way in - the cops won't ticket you as long as you're "reasonable" and not blocking someone. Very bike friendly. Spend a few days at Little Nel. Yeah, it's expensive but hey, its vacation!
5. Leaving Aspen hit the Hotel Colorado in Glenwood Springs for lunch. Ride the slide at the Hot Springs along with several thousand of your friends on a busy day...
6. Vail is - well - like a suburb of Denver - a very expensive
suburb. I had a home there for 17 years but sold it since it has become completely Californicated. Lunch outside at the Arrowhead at Vail golf course clubhouse near Edwards is excellent and open to the public although you'll have to go past a guarded gate. No big deal.
7. Up the road a bit is Minturn and Red Cliff which is funky. The road from there to Leadville is stunning, and worth a quick stroll down Main Street. The Golden Burro is great for breakfast/lunch.
8. Don't miss Independence Pass which will take you back into Aspen.
9. Cottonwood Pass is also a shortcut from CB instead of Monarch which is usually in very good condition, mostly hard packed dirt. LT worthy once again as long as it is dry...
10. Watch out for lightening - every couple of years a motorcyclist gets ZAPPED.
If you limit your riding to before 2pm most days you won't get wet. Be prepared for COLD weather at altitude, it can snow at any time.