If you can spread the trip over more days:
leave Vegas around 1 PM to make Zion after all the tourists are leaving.
We averaged about 130 or so double up on a 03 VRSCA. AT that speed fill up was every 50 minutes or so. We stopped to ask at a small police department directions and had a chat about riding and speed on the freeway. The officeer advised don't let me catch you at that speed.
Okay, what is the fastest you've nailed? 185, a group ride out of Germany, apparently shipping their high HP machines by air, charted a jet purposely to ride desert roads.
Were they jailed? No. Why not? International liscensed.
What was the fine? thousands per rider and they laffed while paying the fines and told the bailiff, you'll no doubt see us again.
Apparently the autobahn is not as much fun as high plain desert riding.
FYI, if you ride at 100, you'll be tail gated by tractor trailers, 125 you should be okay. An Ultra Electra Glide will not pull over 105 double up. I tried when we visited Colorado last July to ride the Rockies, heading back down to Denver to return the bike, the lead sled is a gutless wonder.
On the east exit side of Zion is Zion Mountain Ranch that has small cottages to let;
We timed our trip to the rise of the full moon.
Was a great ride coming out of Zion as the moon was rising in front of us.
Got to the ranch, checked in and walked to the small resaurant there for Buffalo burgers. While walking from the cottage, the coyotes were serenading their songs.
Woke up the next morning strolled outside and took a cowboy leak against a tree, turned and saw over a hundred buffalo watching me no more than 20 - 25 yards away.
Did not know they were even there. I felt some apprehension about seeing so many that were 5 times my size, as I've been chased too may times by bulls in my youth to have pleasent memories of the experience. The buffalo were pretty tame though.
At that time there was no fence on the road to keep them in as you had to pass over the cattle guards on the road to get to the cottage.
We saddled up and headed east and then north up to Bryce canyon. Colder than sin, as this was September when we did that ride. Deer, pleanty of them as you head to Bryce.
We did not spend much time there, our goal was to make the North Rim.
When you leave Bryce and head back down south, control the speed between Kanab utah and Fredonia Arizona as tickets might be expected. Fredonia has a police car with a dummy sitting in it on the west side of the road as you head out 89A to the Kaibab Plateau. This was located by one of their schools...at least they did when we were there.
Once we cleared the town, 89A is almost a straight as an arrow for about 20 - 30 miles with some rises and dips. The painted cliffs are on the left and plateau fauna and desert on the right. On that road we averaged about 140.
Here's a link to the lodge at the North Rim: http://grandcanyonlodgenorth.com/
to rent a hobbit cabin (you'll see why I am calling the cabins this name once spending a night there) and be sure to make a reservation for the sunset show over the Grand Canyon here http://grandcanyonlodgenorth.com/north-rim-dining
and request a window seat for best viewing conditions when you make the reservation.
It's best to make your dining reservations as soon as you can becuase if the season is a well toured season, you cannot do a walk in unless some one does not make their reservation.
If you leave early AM, be careful as there are heards of deer roaming the forests of the north side where the road heads back out toward the Kaibab Plateau 89 A.
LV HD does not rent VR's anymore, last time there I enquired as we wanted to rent for a couple of days. They told us too many people smashed the bikes. When someone ended up with one of their VR's in a tree, they said enough is enough.