Rail Splitter
Rail Splitter: Sugar syrup, Lemon juice and Ginger ale. Served in a highball glass.

The Spec
Method
Mix sugar syrup with lemon juice in a tall glass. Fill up with ginger ale.
Served in a highball glass.
Spec held as sourced — TheCocktailDB. The house never guesses a drink.
Drinks that share this spec
Shares Lemon juice and Sugar syrup with Bramble. If your shelf makes Rail Splitter, it is already most of the way to these:
Bramble · Gin Basil Smash · Jasmine · Orangeade · Ramos Fizz · Ramos Gin Fizz · Russian Spring Punch · Tequila Fizz