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