If you're even remotely interested in wrenching, you've probably heard of idler and tensioner pulleys, but if you're unsure ...

People sometimes ask if there are wear differences due to the raw edge design of the notched V-belt vs. the fabric all over design of the classical wrapped V-belt. The fact is many factors can ...

We all know that success in racing requires paying attention to the details. Too often, it's the little things that throw a monkey wrench into what would have otherwise been a successful night of ...

Before detailing the differences of static vs. dynamic, let’s first explore balance and its importance to sheaves and the overall drive. When an object like a sheave or even the wheel on a car rotates ...

Have you ever seen a flag being raised, or wondered how a mechanical clock works? Let’s take a look at some of the simple mechanisms that they use. Pulleys and gears. When a flag is raised, it will ...

Pro road racers who use Berner's uniquely oversized rear derailleur cages have sworn time and again that they reduce drivetrain friction thanks to their humongous 15-tooth pulleys. Now, Jason Smith of ...