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Pinhead Bubble Shackle Lock Black 195 x 230mm
Pinhead Bubble lock forms the backbone of a complete one-key locking system that secures your bicycle frame. Designed to work individually or in combination with the other Pinhead products, it provides bicycle riders with the peace of mind that their bike will be secure.
Children's bikes are generally measured by wheel size, rather than by frame size. Remember children do grow very quickly and you need to take this into consideration when buying a kids bike, However, if you buy a bike that is simply too big for your child, you will compromise your child's safety, and ultimately discourage your child from cycling.
Age of Child
Which Size Bike Do I Require?
Adults bikes and those for 10/11 years and over, are generally measured by frame size. This is normally the measurement between the centre of the bottom bracket to the top of the seat tube.