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