In a rocks glass filled with ice, combine the bourbon, lime juice, ginger juice and simple syrup and stir briefly. Top with club soda and garnish with the lime wheel. Serve immediately.

To make the simple syrup: In a small saucepan, bring water to a boil. Add the sugar and stir until dissolved. Remove from the heat and set aside to cool. Pour into a sterilized bottle of jar. This simple syrup will keep in the fridge for up to a month.