If the utility of an invention were somehow derived from the genius of its inventor, it would be pardonable that so many sources trace the idea for the ball bearing to a 1497 drawing by Leonardo da ...

Ball bearings are in your car, your bike, your skateboard, all sorts of machines with moving parts. These genius little devices have been around for centuries, using the magic of physics to reduce ...

The bearing assembly in your bike’s headstock is the only thing securing the front wheel, fork, and handlebar to the rest of your bike. Seems like pretty critical componentry, right? Odds are, however ...

A layer of foam may be good at protecting you from simple whacks on the head, but it's not necessarily sufficient when you're cycling at speed. That's where RLS bike helmet tech comes in. It's claimed ...