Buying guides

Eight kids' bikes compared, from 14 to 24 inches, rated by the ADAC and Stiftung Warentest: height, age, weight, brakes and price, from €159.99 to £585.

Eight balance bikes compared, including the two rated “good” by Stiftung Warentest in 2021, the Puky LR Light and the Early Rider Bonsai: age, size, weight, brakes and price, from £29.99 to £285.

Six commuter bike helmets rated 4 or 5 stars by the Virginia Tech helmet lab, from €80 to $259.90: protection, weight, lights, e-bike standard and price.

Rollers, smart turbo trainers and a complete indoor bike: nine models compared, with their accuracy, the gradient they simulate, their noise and how they work with Zwift.

City light sets, headlights of 1,000 lumens and more for unlit roads, radar tail lights: eight bike lights compared, with their range, runtime and price.

Eight D-locks sold as angle grinder resistant, from £169.99: two were timed by France’s cycling federation, the others rely on the Sold Secure Diamond rating.