Compression Ratios III

TAKING AIM, by Chris Maida, Editor Moderately boosting the compression, like going from 9:1 to 10:1 or 10.25:1, shouldn’t run you afoul of engine knock in a big way. However, a high-compression engine can be unforgiving and difficult to tune, especially a Twin Cam, if you go past 10.5:1. Even stock H-D engines have bouts […]

Compression Ratios I

TAKING AIM, by Chris Maida, Editor Have you ever been in a pack of bikes and heard one that had an exhaust note that crackled with power when the rider blipped the throttle? That, my friend, is the sound of a high-compression engine! And though some try to imitate it with real short drag pipes […]

American Iron Magazine Content

TAKING AIM, by Chris Maida, Editor I’ve been getting lots of letters lately from readers concerned that since Motorcycle Bagger has been discontinued, we’re going to flood American Iron with suitcases, as one reader called them. I guess they’re reacting to Buzz’s column in Issue #323, where he stated that we were going to start […]

Increasing Motorcycle Engine Size

TAKING AIM, by Chris Maida, Editor Want more power? Get a bigger engine. It’s as simple as that. And though increasing your engine’s displacement isn’t the only way to get more power, it’s a very effective one. Since an engine’s displacement is the result of two factors — the bore of its cylinders and the […]

How Motorcycle Engine Power Is Produced

TAKING AIM, by Chris Maida, Editor Whenever you get around a group of riders, compression ratios, cubic inches, and cam lifts, as well as a multitude of other modifications, are discussed and compared, along with the resulting torque and horsepower numbers. But why does increasing an engine’s cubic inches (known as its displacement) result in […]

Neglected Pre-Ride Motorcycle Maintenance Part 2

TAKING AIM, by Chris Maida, Editor In the last issue, I wrote about how many owners routinely neglect their bike’s tires. This time around, we’ll look at the second important area I see many owners overlooking: their brake systems. Checking the brake pads, brake lines, and rotors takes only a few minutes, since they’re out […]

Chain Tensioner Blues

TAKING AIM, by Chris Maida, Editor I’ve been getting a lot of letters from readers concerned about the cam chain tensioners in their Twin Cam engines. They want to know at what mileage the fiber shoe on the tensioners will wear out. Unfortunately, there’s no simple answer to this question, since it depends on a […]

Riding In Manila

TAKING AIM, by Chris Maida, Editor As you’ll see on page 70, I went to the Philippines for a vacation last March. While there I went diving and rode a Harley around the island of Luzon for a couple of days with Emerson Raymundo, the sales and marketing manager of Harley-Davidson of Manila, and Mark […]

Support A Local Charity Ride

TAKING AIM, by Chris Maida, Editor Now that the warm weather has (finally!) arrived throughout the country, there are numerous charity rides happening in every state. Thankfully, motorcyclists are great supporters of these rides, which are an excellent way to spend a Sunday riding while also helping out a person, family, or organization in need. […]

April Fools’ Issue

TAKING AIM, by Chris Maida, Editor As many of our readers know, we now publish 13 issues of American Iron a year, which is why we had to go to a numbering system instead of months to identify each issue. But though we no longer have an issue called April, our last issue, #309, hit […]