1800' = grueling???
really?
i wouldn't be too worried. not sure what kind of bike you're riding, but the climbs UP the pass are not that hard to do -- you can ride broken pavement. some of the "shuttles" start from <1/2-way up = maybe 30 minutes of climbing (on my heavy bike). you don't even need a shuttle to shuttle.
even to bike from the base of the pass past the parking lot to a higher peak is pretty straightforward (and fun).
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