The Halfords Kids Bike Stabilisers fit children's bikes with wheel sizes between 12-20"", and are simple to put on and take off. ... If your child's bike has gears, we have the Halfords Kids Bike Stabiliser Derailleur Kit, which allows you fit stabilisers to any geared bike up to 20" wheel size, by extending the rear axle.

Can stabilisers be fitted to any bike?

Weldtite bike stabiliser derailleur kit allows you fit stabilisers to any bike with gears to wheel, by extending the rear axle.

Do stabilisers come in different sizes?

Different stabilisers are available for different sizes of bike, however, the universal size is 12”-20”.