If you are more familiar with the gears in your car than the gears on your bike, then you’re not alone. Bike gears, and how they work, frequently come up as a concern among beginner cyclists ...

You can buy gears off the shelf, of course, and get accurately machined parts exactly to your chosen specification. However, there’s something rugged and individualist about producing your own ...

Most automatic transmissions, however, can do much more than just go forward, go backwards, and stop your car from rolling into traffic. Some have lower gears you can shift into. Other ...