Our Colorado Tours:

Colorado offers some of the most breathtaking scenery in the world-- Get a close up look with the knowledgeable guides of Challenge Unlimited. We offer fun cycling tours that range from a few hours to several days.

Cog Up/Bike down - The Ultimate Ride

Pikes Peak by Bike As seen on the today show


The Prospector: Take a ride thru history

Go for the Gold

Tour des Aspens

Rent a GoPro camera $50.00, plus $10.00 for disk, if you donít have one!


Pikes Peak by Bike Coupon