The National Parks are major destinations in Utah, but there are many scenic byways plus sights/sites just driving along the highway. We visited Moab and a portion of the Moab Canyon Pathway, and rented bikes at Springdale to bike at Zion National Park. Scroll down or click on the link below for more details:
Moab Canyon Pathway: The Moab Canyon Pathway provides a connection to two national parks (Arches and Canyonlands). Starting at the Colorado Riverway Bicycle/Pedestrian Bridge at Moab, it runs on Old Hwy 191 to Arches National Park (2 miles), then onto Hwy 313 which connects to Canyonlands (30 miles) - this is uphlll, so be aware.
Moab Canyon Pathway
Zion National Park: Cars aren't allowed on the main park road so we rode the shuttle from Springdale to the Park, took the park shuttle to the top , and then biked down the park road.The scenary was outstanding, hard to keep your eyes on the road! The Pa'rus Trail runs along the Virgin River from the Zion Canyon Visitor Center and to Canyon Junction (where the Zion-Mt. Carmel Highway meets the Zion Canyon Scenic Drive). There also are many popular mountain trails, but that's not our forte so we didn't visit those.
Zion National Park - park road
More information on biking in Utah (opens in a new window):
Bike Florida - Biking Outside Florida-West Virginia
Our Top 10 FL Biking