Donation Amount

Select the amount you would like to donate to Zulianna Speltz's 50 mi challenge.

$50

$100

$250

$500

$2,500

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Donation Calculator

Calculate your donation based on an amount per-mile Zulianna Speltz has committed to ride this September. Your total donation will be the amount you select multiplied by Zulianna Speltz's 50 mi challenge goal and will be charged up-front.

$0.30 cents/mi

$0.50 cents/mi

$0.80 cents/mi

$1/mi

$1.50/mi

$2/mi