The bike traffic on the 4th I went up (last year?) was unbelievable. More bikes than I think I've ever seen in one day. A big chunk of the descending riders are far more terrifying than cars on the road. There are a lot of guys bombing that descent like there's no one on it, and there are so many people going up in some places it's bike four-wide.
Do what I did and ride it in December. Road was closed all the way up, and i think I saw three bikes total.
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