Select the amount you would like to donate to Seyda Yıldırım's 50 mi challenge.
Calculate your donation based on an amount per-mile Seyda Yıldırım has committed to ride this September. Your total donation will be the amount you select multiplied by Seyda Yıldırım's 50 mi challenge goal and will be charged up-front.
A receipt will be sent to this email address
