If you bought a bicycle between say 1893 and 2007, chances are you know what a bike chain tattoo (aka “rookie mark”) is—the greasy imprint of your bike chain on your leg or pant cuff. Bike chains, ...

A belt drive is an alternative to the conventional bike chain. They have several advantages, particularly for riders who don’t have the time or inclination to keep a chain maintained. In contrast, a ...

Gear-driven drawworks have gained greater acceptance in the drilling industry. They achieve improved safety, optimal performance and control, considerable weight re duction, and increased reliability ...

CeramicSpeed and Friction Facts have made a business of reducing friction to an absolute minimum, whether with ceramic bearings or oversized pulleys or highly specialized chain lube. Today, the ...

Ever heard of a “digital drive” bike? It might seem like a strange concept, but several companies are developing commercial offerings that use electronics instead of a bike chain to power a bicycle’s ...

Priority Bicycles isn’t a big name in the MTB world today, but after 11 years of building their brand with exclusively belt-driven bikes, they’ve just announced a full-suspension enduro bike. The ...

The components get assembled into a planetary gearhead with a roller chain replacing the traditional ring gear. They are assembled into a complete gearhead from Gearing Solutions. Durable gears for ...

The most reliable means for changing shaft speed remains a mechanical variable-speed transmission. These drives are used to provide a variable output speed from a constant-speed power source (as in a ...

BikeOn is shaking up the power meter world with the launch of CycleClick, a compact, clip-on device that claims pro-level power metrics with no tools, no crank swaps, no fuss. What’s the catch? It’s a ...

A differential is a very useful thing for a vehicle. It allows two driven wheels to rotate at different speeds, such as when going around a corner. [Workshop From Scratch] needed a chain driven ...

Toyota trucks and 4Runners are found much more frequently on trails these days than they used to be. A big reason for this surge in popularity has been the common availability of lower-ratio ...