Hi, any locals or recent travellers to Denver out there?

We are from Montreal Canada and will be doing 6 days of cycling around Colorado late July early August.
Flying into Denver .
Will have a car rental and touring Colorado looking to do some good climbing routes .

We are not sure if we will fly our bikes over or simply rent bikes in Denver.

Any recommendations on preferred bike rental shops that have a good line of carbon higher end component bikes?

Thanks.