How an Automatic Transmission Changes Gears
A friendly guide to the parts that move power to the wheels.
THE GEAR EXPLAIN LIBRARY
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Explore practical guides, thoughtful comparisons, and straightforward reviews.
Road Bike or Hybrid: Which Fits Your Ride?
Compare fit, gearing, and comfort for everyday routes.
Bicycle Gears Making Noise: Common Causes
Track down clicks, rubbing, and rough shifting.
Bicycle Cadence: Find a Comfortable Pedal Rhythm
Use your gears to keep your pedaling smooth and steady.
A Beginner’s Guide to Choosing a Bike Cassette
Understand cog sizes and what they change on the road.
How to Tell When a Bike Chain Needs Replacing
Recognize chain wear before it damages other parts.
What Gear Ratios Mean for Everyday Drivers
Understand low and high gearing without the jargon.
Single-Speed or Geared Bike: Which Should You Buy?
Weigh simplicity against flexibility for your daily ride.
Basic Rear Derailleur Adjustment for Beginners
Small checks that can make shifting feel precise again.
Derailleur Gears and Hub Gears Compared
See how two common shifting systems differ on a ride.