For Sale UK

Boys 20 mountain bike

4

Boys 20 mountain bike for sale on largest auction and classifieds sites

Home / eBay / Boys 20 mountain bike refurbished & used for sale | For Sale UK
Kids mountain bike 6 - 20”,

Kids mountain bike 6 - 20”,

£149.99 · Buy It Now

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Inch kids bike - 24,

Inch kids bike - 24,

£149.90 · Buy It Now

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20inch kids bike - bike, girls

20inch kids bike - bike, girls

£149.90 · Buy It Now

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20inch kids bike boys - 20inch,

20inch kids bike boys - 20inch,

£180.00 · Buy It Now

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Kids mountain bike boys - mountain, 20”

Kids mountain bike boys - mountain, 20”

£109.00 · Buy It Now

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Inch unisex mountain bike - mountain,

Inch unisex mountain bike - mountain,

£125.99 · Buy It Now

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Falcon samurai inch boys - samurai,

Falcon samurai inch boys - samurai,

£185.99 · Buy It Now

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Spike inch wheel size - inch,

Spike inch wheel size - inch,

£94.99 · Buy It Now

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Kids mountain bike - bike, boys

Kids mountain bike - bike, boys

£159.99 · Buy It Now

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Inch mountain bike speed - 7,

Inch mountain bike speed - 7,

£109.89 · Buy It Now

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Inch unisex mountain bike - unisex,

Inch unisex mountain bike - unisex,

£92.88 · Buy It Now

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Inch kids bike - bike, girls

Inch kids bike - bike, girls

£149.90 · Buy It Now

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Inch mountain bike speed - mountain,

Inch mountain bike speed - mountain,

£112.49 · Buy It Now

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New inch kids bike boys - kids,

New inch kids bike boys - kids,

£162.90 · Buy It Now

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Carrera blast kids - blast, girls

Carrera blast kids - blast, girls

£67.26 · Buy It Now

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Inch children mountain bike - inch,

Inch children mountain bike - inch,

£130.00 · Buy It Now

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Inch kids bike unisex - kids,

Inch kids bike unisex - kids,

£139.90 · Buy It Now

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Inch mountain bike speed - 20,

Inch mountain bike speed - 20,

£105.99 · Buy It Now

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Inch kids bike - 22,

Inch kids bike - 22,

£162.90 · Buy It Now

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New inch unisex mountain - new,

New inch unisex mountain - new,

£132.68 · Buy It Now

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Inch unisex mountain bike - unisex,

Inch unisex mountain bike - unisex,

£132.82 · Buy It Now

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New inch unisex mountain - inch,

New inch unisex mountain - inch,

£132.68 · Buy It Now

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Inch children mountain - children, bike

Inch children mountain - children, bike

£132.70 · Buy It Now

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Inch unisex mountain - inch,

Inch unisex mountain - inch,

£121.99 · Buy It Now

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Inch mountain bike speed - mountain,

Inch mountain bike speed - mountain,

£121.99 · Buy It Now

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Inch mountain bike speed - 20,

Inch mountain bike speed - 20,

£96.49 · Buy It Now

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Inch unisex mountain - 20,

Inch unisex mountain - 20,

£132.68 · Buy It Now

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Carrera boy junior mountain - boy's,

Carrera boy junior mountain - boy's,

£94.30 · Buy It Now

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Boys mountain bike inch - mountain,

Boys mountain bike inch - mountain,

£89.10 · Buy It Now

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Inch unisex mountain bike - mountain,

Inch unisex mountain bike - mountain,

£132.68 · Buy It Now

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Professional rock face kids - rock,

Professional rock face kids - rock,

£115.10 · Buy It Now

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Inch unisex mountain bike - 20,

Inch unisex mountain bike - 20,

£132.68 · Buy It Now

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New inch kids bike - new,

New inch kids bike - new,

£162.90 · Buy It Now

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Blaze red front suspension - 20,

Blaze red front suspension - 20,

£63.10 · Buy It Now

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New inch unisex - unisex, mountain

New inch unisex - unisex, mountain

£132.68 · Buy It Now

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Inch mountain bike - 20,

Inch mountain bike - 20,

£118.95 · Buy It Now

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Inch mountain bike - bike, kids

Inch mountain bike - bike, kids

£120.30 · Buy It Now

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Inch mountain bike speed - mountain,

Inch mountain bike speed - mountain,

£98.69 · Buy It Now

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Inch unisex mountain - inch,

Inch unisex mountain - inch,

£139.45 · Buy It Now

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Inch unisex mountain - inch,

Inch unisex mountain - inch,

£132.68 · Buy It Now

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Inch mountain bike speed - 7,

Inch mountain bike speed - 7,

£105.99 · Buy It Now

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Inch mountain bike speed - bike, 7

Inch mountain bike speed - bike, 7

£129.99 · Buy It Now

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Inch mountain bike - inch,

Inch mountain bike - inch,

£149.98 · Buy It Now

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Hiland inch kids - hiland,

Hiland inch kids - hiland,

£115.10 · Buy It Now

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Inch unisex mountain bike - 20,

Inch unisex mountain bike - 20,

£130.28 · Buy It Now

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Boom 22inch kids bike - boom, 18-22inch

Boom 22inch kids bike - boom, 18-22inch

£139.90 · Buy It Now

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Inch unisex mountain bike - 20",

Inch unisex mountain bike - 20",

£132.68 · Buy It Now

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Kids mountain bike 7 speed - 7,

Kids mountain bike 7 speed - 7,

£149.99 · Buy It Now

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Inch mountain bike speed - inch,

Inch mountain bike speed - inch,

£104.99 · Buy It Now

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Inch mountain bike speed - inch, 7

Inch mountain bike speed - inch, 7

£125.99 · Buy It Now

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New inch kids bike - 18-22,

New inch kids bike - 18-22,

£162.90 · Buy It Now

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Falcon jetstream inch boys - jetstream,

Falcon jetstream inch boys - jetstream,

£181.99 · Buy It Now

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New inch unisex mountain - unisex,

New inch unisex mountain - unisex,

£132.68 · Buy It Now

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Professional dude kids - professional,

Professional dude kids - professional,

£179.99 · Buy It Now

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Specialized hardrock mtb - specialized,

Specialized hardrock mtb - specialized,

£78.70 · Buy It Now

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Inch kids bike children - 20,

Inch kids bike children - 20,

£141.10 · Buy It Now

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Inch unisex mountain bike - mountain,

Inch unisex mountain bike - mountain,

£132.69 · Buy It Now

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Inch unisex mountain bike - unisex,

Inch unisex mountain bike - unisex,

£86.24 · Buy It Now

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Inch unisex mountain bike - inch,

Inch unisex mountain bike - inch,

£132.68 · Buy It Now

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Inch unisex mountain bike - 20",

Inch unisex mountain bike - 20",

£132.68 · Buy It Now

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Barracuda charge wheel - 20",

Barracuda charge wheel - 20",

£199.99 · Buy It Now

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Inch mountain bike - inch,

Inch mountain bike - inch,

£107.95 · Buy It Now

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Inch unisex mountain - 20,

Inch unisex mountain - 20,

£132.68 · Buy It Now

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20in mountain bike speeds - 20in,

20in mountain bike speeds - 20in,

£146.99 · Buy It Now

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Inch kids bike children - 20,

Inch kids bike children - 20,

£124.99 · Buy It Now

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New inch unisex mountain - 20,

New inch unisex mountain - 20,

£132.68 · Buy It Now

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New inch unisex - new, mountain

New inch unisex - new, mountain

£132.68 · Buy It Now

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New inch unisex mountain - 20,

New inch unisex mountain - 20,

£132.68 · Buy It Now

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New inch unisex mountain - 20,

New inch unisex mountain - 20,

£132.68 · Buy It Now

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Inch unisex mountain bike - 20,

Inch unisex mountain bike - 20,

£132.69 · Buy It Now

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Inch unisex mountain bike - mountain,

Inch unisex mountain bike - mountain,

£132.68 · Buy It Now

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Inch mountain bike speed - inch,

Inch mountain bike speed - inch,

£146.86 · Buy It Now

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Inch unisex mountain bike - 20,

Inch unisex mountain bike - 20,

£132.68 · Buy It Now

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New 22inch kids - new, 18-22inch

New 22inch kids - new, 18-22inch

£145.90 · Buy It Now

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Inch unisex mountain bike - inch,

Inch unisex mountain bike - inch,

£132.69 · Buy It Now

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Inch unisex mountain bike - mountain,

Inch unisex mountain bike - mountain,

£132.68 · Buy It Now

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Inch kids bike boys - 22,

Inch kids bike boys - 22,

£159.90 · Buy It Now

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Inch mountain bike speed - bike, 7

Inch mountain bike speed - bike, 7

£23.38 · Buy It Now

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Inch mountain bike speed - bike, 7

Inch mountain bike speed - bike, 7

£113.35 · Buy It Now

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Inch unisex mountain - inch,

Inch unisex mountain - inch,

£139.43 · Buy It Now

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Inch unisex mountain bike - 20,

Inch unisex mountain bike - 20,

£110.99 · Buy It Now

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Inch avoca mountain bike - avoca,

Inch avoca mountain bike - avoca,

£130.70 · Buy It Now

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Inch unisex mountain bike - 20,

Inch unisex mountain bike - 20,

£139.45 · Buy It Now

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Inch unisex mountain bike - unisex,

Inch unisex mountain bike - unisex,

£113.69 · Buy It Now

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Inch unisex mountain bike - 20,

Inch unisex mountain bike - 20,

£132.69 · Buy It Now

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Specialized hotrock mountain - specialized,

Specialized hotrock mountain - specialized,

£16.15 · Buy It Now

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Inch children mountain bike - 20,

Inch children mountain bike - 20,

£129.99 · Buy It Now

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Inch unisex mountain bike - 20,

Inch unisex mountain bike - 20,

£132.68 · Buy It Now

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Inch unisex mountain - 20", bike

Inch unisex mountain - 20", bike

£132.68 · Buy It Now

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Inch unisex mountain - 20, bike

Inch unisex mountain - 20, bike

£132.68 · Buy It Now

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Kids mountain bike - 20", speed

Kids mountain bike - 20", speed

£186.99 · Buy It Now

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Inch unisex mountain bike - inch,

Inch unisex mountain bike - inch,

£112.99 · Buy It Now

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Inch kids bike boys - 18-24,

Inch kids bike boys - 18-24,

£159.90 · Buy It Now

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New inch unisex - inch,

New inch unisex - inch,

£130.03 · Buy It Now

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Inch kids bike boys - 18-24,

Inch kids bike boys - 18-24,

£159.90 · Buy It Now

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Giant blue mtx - blue,

Giant blue mtx - blue,

£83.90 · Buy It Now

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📊96 listings · from £16.15 · avg £128.79
⚠️ These listings were last updated more than 12 days ago. Search for fresh listings

Browse 96 boys 20 mountain bike listings currently in our index. Prices range from £16.15 to £199.99, with an average of £128.79. Whether you are hunting for a bargain or looking for a top-spec model, the selection below covers all price points — new, used and refurbished. More about boys 20 mountain bike →

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Everything you need to know about boys 20 mountain bike

Whether you are looking for a brand-new or second-hand boys 20 mountain bike, eBay offers one of the largest selections available online. With 96 active listings at the time of this page's last update, you have plenty of choice across different conditions, sellers and price points. The cheapest option currently starts at £16.15, while premium listings can reach £199.99 — giving you a wide budget spread to work with. The average price of £128.79 can serve as a useful benchmark: listings below this tend to be used or auction-style, while those above often include extra accessories, warranties, or are sold by professional sellers with high feedback scores. Always check the seller's feedback rating and return policy before committing to a purchase. If you need the item quickly, filter by "Buy It Now" to avoid the uncertainty of auctions. For used items, look closely at the condition description and photos — terms like "good", "very good" and "like new" can mean very different things depending on the seller.

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