Select the amount you would like to donate to Daria Knyazskaya's 75 mi challenge.
Calculate your donation based on an amount per-mile Daria Knyazskaya has committed to ride this September. Your total donation will be the amount you select multiplied by Daria Knyazskaya's 75 mi challenge goal and will be charged up-front.
A receipt will be sent to this email address
