Kids bikes size 24

Taller Riders & Teens: The larger wheels and frame are better suited to older kids, teenagers, and shorter adults who find 20″ bikes too small. They provide a more comfortable and stable ride. 
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Height Fit: While exact fits vary by make and frame geometry, riders around about 150 cm (4′11″) and taller tend to feel more comfortable on 24″ bikes compared to smaller BMX sizes. 
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???? How a 24″ BMX Rides
Smoother & More Stable: The larger wheels roll over bumps more easily and offer better stability for cruising, commuting, or casual street riding. 
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Cruiser Feel: Because of the bigger wheels and often bigger frame, these bikes feel less twitchy than 20″ BMX bikes — great for longer rides or riders who don’t need super-tight handling. 
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Tricks & Park Use: You can still do basic BMX tricks, but 24″ cruisers generally aren’t as nimble as 20″ stunt bikes, so they’re less common in competitive freestyle BMX. 
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???? Quick Summary
24″ refers to wheel diameter — a step up from standard 20″ BMX wheels. 
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Best for: Taller or older riders who want BMX style with extra stability. 
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Ride style: Smooth cruising, casual riding around town, entry-level tricks.