01. Here is the location of the oil filler cap. It’s often difficult, even when cool, to get the remove the cap.01. Here is the location of the oil filler cap. It’s often difficult, even when cool, to The threaded filler cap/oil dipstick on the right side of the ’07-later Touring bikes is convenient to check the oil but its location can lead to busted knuckles or burns. The cap is located close to the stock exhaust and transmission and is often more difficult to access with aftermarket exhaust systems. Gary Smith developed the Smart-Socket ($19.95, but with a limited intro price of $16.50) to avoid getting burned or ruining your dipstick by using channel-lock pliers to remove a tight filler cap. 02. The Smart-Socket is made of a long-lasting, non-marring material that accepts a standard 3/8-inch drive or extension of any length.02. The Smart-Socket is made of a long-lasting, non-marring material that accepts a stand 03. The inside of the Smart-Socket is octagonal and matches the dimensions and shape of the filler cap.03. The inside of the Smart-Socket is octagonal and matches the dimensions and shape of t 04. With a 3/8-inch drive extension the Smart-Socket quickly, easily, and safely removes the filler cap.04. With a 3/8-inch drive extension the Smart-Socket quickly, easily, and safely removes Check out hdsmartsocket.com for more information. By Toph Bocchiaro Enjoyed this Post? Subscribe to our RSS Feed, or use your favorite social media to recommend us to friends and colleagues!