Donation Amount

Select the amount you would like to donate to Geoffrey Hern's 75 mi challenge.

$35

$70

$120

$265

$500

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Donation Calculator

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

$0.30 cents/mi

$0.50 cents/mi

$0.80 cents/mi

$1/mi

$1.50/mi

$2/mi

Donation Total:

$