VP junior pedals for 16 to 20 inch bikes: one-piece PP body, boron axle, ball bearing, 93 x 87 mm, 1/2" or 9/16" thread. Kids' pedals are small and light to suit short legs and small cranks, and a plain flat platform is the easiest thing for a young rider to learn on.

• One-piece PP body
• Boron axle
• Ball bearing
• 93 x 87 mm platform
• 1/2" or 9/16" thread

The PP (polypropylene) body is light and won't rust, and it's cheap to replace if it's damaged in a crash. This listing groups the versions by pedal thread (1/2" or 9/16"); choose yours below.

Choose the thread to suit your cranks: 9/16" for three-piece cranks, the standard on almost every adult bike, or 1/2" for one-piece cranks, which are common on kids' bikes, older BMX bikes and some exercise bikes. A one-piece crank is a single steel piece running through the frame; a three-piece crank has separate arms fixed to a bottom bracket axle.

To fit, grease the pedal threads, start each pedal by hand so it doesn't cross-thread, then tighten it with a pedal spanner or the hex key it takes. The left pedal has a reverse thread, so it tightens anticlockwise.

Not sure it fits your bike? Send us the make, model and year before ordering and we'll confirm.