I have only walked the loop and never road a bike. When you enter the loop, do you go to the left or stay straight to start? The hills on the left can be crazy steep and riding a bike up them must be a bitch.
I go right because the ride down is better that way. The first time I biked it my time was 56 minutes (no stopping) and I thought I was going to have a heart attack. Give it a try, it's a lot of fun!
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