Select the amount you would like to donate to Zach DeGraffenreid's 300 mi challenge.
Calculate your donation based on an amount per-mile Zach DeGraffenreid has committed to ride this September. Your total donation will be the amount you select multiplied by Zach DeGraffenreid's 300 mi challenge goal and will be charged up-front.
A receipt will be sent to this email address
