Donation Amount

Select the amount you would like to donate to caroline shen's 75 mi challenge.

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Donation Calculator

Calculate your donation based on an amount per-mile caroline shen has committed to ride this September. Your total donation will be the amount you select multiplied by caroline shen's 75 mi challenge goal and will be charged up-front.

$0.30 cents/mi

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$0.80 cents/mi

$1/mi

$1.50/mi

$2/mi