To help you out, we’ve tested a whole range of bikes to suit all levels and types of riders. Our pick of the bunch is the Hornet hero 20in kids’ pedal bike (£399, Hornit.com) but there are plenty of ...

Triathlon bikes may be more difficult to handle because of their geometry, but they’re popular because the positives far outweigh the negatives, by limiting their weaknesses to allow them to go faster ...