Select the amount you would like to donate to Cristóbal C. Mac-Auliffe's 75 km challenge.
Calculate your donation based on an amount per-kilometre Cristóbal C. Mac-Auliffe has committed to ride this October. Your total donation will be the amount you select multiplied by Cristóbal C. Mac-Auliffe's 75 km challenge goal and will be charged up-front.
A receipt will be sent to this email address
