Donation Amount

Select the amount you would like to donate to Deep Substrate Foliated Kalkite's 100 mi challenge.

Donation Calculator

Calculate your donation based on an amount per-mile Deep Substrate Foliated Kalkite has committed to ride this September. Your total donation will be the amount you select multiplied by Deep Substrate Foliated Kalkite's 100 mi challenge goal and will be charged up-front.