Fifteen bicycle safety habits based on NHTSA guidance, from pre-ride checks and visibility to predictable riding, defensive habits and skill building.

Bicycles do not automatically have the right of way. Here is how right-of-way works for cyclists at intersections, turns, crosswalks, trails and bike lanes.

Yes, bicycles can generally ride on the road. Here are the usual rules, where to ride in the lane, when you can take the lane, and where bikes are not allowed.

Putting 4,000 lumens in perspective with household bulbs, bike lights and flashlights, plus why big lumen claims on cheap lights deserve a second look.

How lumens measure light, why the same lumen number can look so different, and how lux, candela and beam shape decide what you actually see.

CatEye is a Japanese cycling brand known for lights, reflectors and cycle computers. Here is its history, product range and how it compares with other light brands.

A practical lumen guide: how much brightness you need for bike lights, tail lights, headlamps, flashlights and home bulbs, with examples.

A plain-English explanation of lumens, how they differ from watts, lux and candela, and what lumen numbers mean for bike lights and bulbs.