What is the cost of renting a bike and riding 18 miles?

The cost of renting a bike typically ranges from $10 to $30 per day, depending on the rental shop and location. Additional fees may apply for insurance or accessories. Riding 18 miles itself doesn't incur a direct cost, but it's important to consider the time and potential wear on the bike. Always check the rental terms for any mileage limitations or extra charges.