Select the amount you would like to donate to Carlos Seifarth de Freitas's 120 mi challenge.
Calculate your donation based on an amount per-mile Carlos Seifarth de Freitas has committed to ride this September. Your total donation will be the amount you select multiplied by Carlos Seifarth de Freitas's 120 mi challenge goal and will be charged up-front.
A receipt will be sent to this email address
