Cycling

Bikes are sized by frame and wheel size, and each listing gives a recommended rider height. Standing over the frame, you should have a few centimetres of clearance, and the seat should let your leg almost straighten at the bottom of the pedal stroke. For kids, wheel size is the main guide.

Wrap a soft tape measure around your head about 2 cm above the eyebrows and over the widest part at the back. Match that number to the size range in the listing, such as 56 to 61 cm. A dial fit system fine tunes the fit so the helmet sits level and does not wobble.

Most trailers attach at the rear axle or frame with a universal hitch, but check the listing for supported wheel sizes and axle types. Look at the maximum load and age guidance for child trailers. Practise towing on a quiet street first, as the bike handles differently with a trailer.

Check the bar diameter range in the listing against your handlebars, as mounts are made for a set range. For phone holders, also check the phone size it fits, especially for large phones in cases. Frame bags list their dimensions so you can check them against the space in your frame.

Range depends on battery size, rider weight, hills and how much you use the motor. Each listing gives an estimated range and charge time. For the full range of assisted bikes, see our electric bikes.

Keep bikes out of the rain to stop rust on the chain and gears. A floor stand holds a bike upright in a garage, while wall hooks and racks save floor space. Check the stand suits your tyre width and the rack's weight limit, especially for heavier bikes.