Boys 20 mountain bike
Boys 20 mountain bike for sale on Ireland's largest auction and classifieds sites
Inch kids bike - kids, - £139.90
This stylish sturdy • Kids bike perfect • Gift your child - Free postage - New and Used
This stylish sturdy • Kids bike perfect • Gift your child - Free postage - New and Used
Scott spark junior kids - scott, 20" - £162.85
Mountain bike • Scott spark junior • Kids boys full - Free postage - New and Used
Mountain bike • Scott spark junior • Kids boys full - Free postage - New and Used
Inch unisex mountain bike - 20, - £139.44
Description cycling great • Exercise that can • Help your child - Free postage - New and Used
Description cycling great • Exercise that can • Help your child - Free postage - New and Used
New inch kids bike - 18-22, - £162.90
This bike also • Gives you adjustable • Can customise suit - Free postage - New and Used
This bike also • Gives you adjustable • Can customise suit - Free postage - New and Used
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Piranha boys mountain bike - boys, - £152.99
Adjustable seat handlebars • This bike grows • Your child making - Free postage - New and Used
Adjustable seat handlebars • This bike grows • Your child making - Free postage - New and Used
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48 listings · from £63.1 · avg £134.01
Browse 48 boys 20 mountain bike listings currently in our index. Prices range from £63.1 to £199.99, with an average of £134.01. 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 →
Inch unisex mountain bike - 20, - £139.59
Specifications material carbon • Steel rubber sponge • Aluminum alloy color - Free postage - New and Used
Specifications material carbon • Steel rubber sponge • Aluminum alloy color - Free postage - New and Used
Inch mountain bike speed - inch, 7 - £108.99
Gross weight 12.65kg • 27.88lbs maximum bearing • Capacity 85kg 187lbs - Free postage - New and Used
Gross weight 12.65kg • 27.88lbs maximum bearing • Capacity 85kg 187lbs - Free postage - New and Used
Inch mountain bike - mountain, 7 - £109.98
Rim material mudguards • Both front rear • Wheels are equipped - Free postage - New and Used
Rim material mudguards • Both front rear • Wheels are equipped - Free postage - New and Used
New inch unisex mountain - 20, - £139.44
Package included mountain • Kettle holder storage • Bag english installation - Free postage - New and Used
Package included mountain • Kettle holder storage • Bag english installation - Free postage - New and Used
New inch unisex mountain - 20, - £132.68
Package included mountain • Kettle holder storage • Bag english installation - Free postage - New and Used
Package included mountain • Kettle holder storage • Bag english installation - Free postage - New and Used
Inch unisex mountain bike - inch, - £131.60
Specifications material carbon • Steel rubber sponge • Aluminum alloy color - Free postage - New and Used
Specifications material carbon • Steel rubber sponge • Aluminum alloy color - Free postage - New and Used
Inch unisex mountain - 20, bike - £139.47
Specifications material carbon • Steel rubber sponge • Aluminum alloy color - Free postage - New and Used
Specifications material carbon • Steel rubber sponge • Aluminum alloy color - Free postage - New and Used
Inch mountain bike speed - mountain, - £83.99
Mudguards both front • Rear wheels are • Effectively blocking water - Free postage - New and Used
Mudguards both front • Rear wheels are • Effectively blocking water - Free postage - New and Used
New inch unisex mountain - unisex, - £132.68
Application suitable children • 4.26 4.9 feet • Tall ride various - Free postage - New and Used
Application suitable children • 4.26 4.9 feet • Tall ride various - Free postage - New and Used
Kids mountain bike - bike, 7 - £186.99
Kids mountain bike • Speed gears boys • Girls age seat - Free postage - New and Used
Kids mountain bike • Speed gears boys • Girls age seat - Free postage - New and Used
Boys mountain bike inch - bike, - £89.10
This boys mountain • Bike brand spike • Has inch wheels - Free postage - New and Used
This boys mountain • Bike brand spike • Has inch wheels - Free postage - New and Used
Falcon samurai inch boys - 20", - £185.99
Most suitable children • Aged years well • Being great looking - Free postage - New and Used
Most suitable children • Aged years well • Being great looking - Free postage - New and Used
New inch unisex mountain - new, - £132.68
Package included mountain • Kettle holder storage • Bag english installation - Free postage - New and Used
Package included mountain • Kettle holder storage • Bag english installation - Free postage - New and Used
Unisex kids mountain bike - 20", - £116.99
Gross weight 12.65kg • 27.88lbs wheel 51cm • 20in maximum bearing - Free postage - New and Used
Gross weight 12.65kg • 27.88lbs wheel 51cm • 20in maximum bearing - Free postage - New and Used
Inch unisex mountain bike - unisex, - £99.50
Gross weight 12.65kg • 27.88lbs applicable height • 1.3 1.5m 4.26 - Free postage - New and Used
Gross weight 12.65kg • 27.88lbs applicable height • 1.3 1.5m 4.26 - Free postage - New and Used
20inch kids bike boys girls - bike, - £131.99
Sporty design modern • Matte finish stylish • Decals gives premium - Free postage - New and Used
Sporty design modern • Matte finish stylish • Decals gives premium - Free postage - New and Used
20inch kids bike - kids, girls - £132.00
Sporty design modern • Matte finish stylish • Decals gives premium - Free postage - New and Used
Sporty design modern • Matte finish stylish • Decals gives premium - Free postage - New and Used
Inch unisex mountain - inch, - £137.05
Specifications material carbon • Steel rubber sponge • Aluminum alloy color - Free postage - New and Used
Specifications material carbon • Steel rubber sponge • Aluminum alloy color - Free postage - New and Used
New inch kids bike - new, - £162.90
Wheels brakes gears • Must set fine • Tuned way they - Free postage - New and Used
Wheels brakes gears • Must set fine • Tuned way they - Free postage - New and Used
Barracuda charge wheel - , - £199.99
Fierce bold design • This bike will • Have your child - Free postage - New and Used
Fierce bold design • This bike will • Have your child - Free postage - New and Used
Inch unisex mountain bike - inch, - £139.44
Cool appearance bold • Combination classic black • Dazzling red brings - Free postage - New and Used
Cool appearance bold • Combination classic black • Dazzling red brings - Free postage - New and Used
Inch kids bike - 20, 22 - £162.90
This stylish sturdy • Kids bike perfect • Gift your child - Free postage - New and Used
This stylish sturdy • Kids bike perfect • Gift your child - Free postage - New and Used
Apollo chaos boys kids - boys, - £68.30
Apollo ivory bike • Little ones ride • Alongside their parents - Free postage - New and Used
Apollo ivory bike • Little ones ride • Alongside their parents - Free postage - New and Used
Boom 22inch kids - boom, bike - £145.90
Bicycle provide years • Fun equipped height • Adjustable saddle decorated - Free postage - New and Used
Bicycle provide years • Fun equipped height • Adjustable saddle decorated - Free postage - New and Used
Inch kids bike - kids, boys - £159.90
This bike also • Gives you adjustable • Can customise suit - Free postage - New and Used
This bike also • Gives you adjustable • Can customise suit - Free postage - New and Used
Inch unisex mountain - 20, bike - £139.44
Package included mountain • Kettle holder storage • Bag english installation - Free postage - New and Used
Package included mountain • Kettle holder storage • Bag english installation - Free postage - New and Used
Inch kids bike - inch, - £149.90
This bike also • Gives you adjustable • Can customise suit - Free postage - New and Used
This bike also • Gives you adjustable • Can customise suit - Free postage - New and Used
Inch unisex mountain - mountain, bike - £112.99
Speed gears smooth • Gear shifting handle • Different terrains ease - Free postage - New and Used
Speed gears smooth • Gear shifting handle • Different terrains ease - Free postage - New and Used
Professional dude kids boys - professional, - £179.99
Dude kids bike • Your child • Made specifically young - Free postage - New and Used
Dude kids bike • Your child • Made specifically young - Free postage - New and Used
Inch unisex mountain bike - 20, - £132.68
Description cycling great • Exercise that can • Help your child - Free postage - New and Used
Description cycling great • Exercise that can • Help your child - Free postage - New and Used
Inch mountain bike - bike, 7 - £104.99
- Free postage - New and Used
- Free postage - New and Used
Inch unisex mountain bike - unisex, - £133.31
Key features cool • Appearance bold combination • Classic black dazzling - Free postage - New and Used
Key features cool • Appearance bold combination • Classic black dazzling - Free postage - New and Used
New 22inch kids bike unisex - 18-22inch, - £145.90
Bicycle provide years • Fun equipped height • Adjustable saddle decorated - Free postage - New and Used
Bicycle provide years • Fun equipped height • Adjustable saddle decorated - Free postage - New and Used
Kids mountain bike inch - 20, - £63.10
Bike kickstand - Free postage - New and Used
Bike kickstand - Free postage - New and Used
Inch kids bike girl - 20, - £169.90
This bike also • Gives you adjustable • Can customise suit - Free postage - New and Used
This bike also • Gives you adjustable • Can customise suit - Free postage - New and Used
Inch kids bike boys - 18-24, - £159.90
This stylish sturdy • Kids bike perfect • Gift your child - Free postage - New and Used
This stylish sturdy • Kids bike perfect • Gift your child - Free postage - New and Used
Inch mountain bike - 20, - £106.98
Gross weight 12.65kg • 27.88lbs maximum bearing • Capacity 85kg 187lbs - Free postage - New and Used
Gross weight 12.65kg • 27.88lbs maximum bearing • Capacity 85kg 187lbs - Free postage - New and Used
Blaze red front suspension - 20, - £63.10
Cheap bike ideal • Leaving parked daily • Exercising alone blaze - Free postage - New and Used
Cheap bike ideal • Leaving parked daily • Exercising alone blaze - Free postage - New and Used
New inch unisex mountain - unisex, - £132.68
Description cycling great • Exercise that can • Help your child - Free postage - New and Used
Description cycling great • Exercise that can • Help your child - Free postage - New and Used
New inch kids bike girls - new, - £162.90
This bike also • Gives you adjustable • Can customise suit - Free postage - New and Used
This bike also • Gives you adjustable • Can customise suit - Free postage - New and Used
New inch unisex mountain - inch, - £132.68
Package included mountain • Kettle holder storage • Bag english installation - Free postage - New and Used
Package included mountain • Kettle holder storage • Bag english installation - Free postage - New and Used
Raleight gecko boys - gecko, - £73.50
Mountain bike • Raleigh gecko boys • Durable high quality - Free postage - New and Used
Mountain bike • Raleigh gecko boys • Durable high quality - Free postage - New and Used
Inch unisex mountain - inch, - £140.25
Promotion mode chain • Material auto aus • Kohlenstoffstahl color red - Free postage - New and Used
Promotion mode chain • Material auto aus • Kohlenstoffstahl color red - Free postage - New and Used
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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 48 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 £63.1, while premium listings can reach £199.99 — giving you a wide budget spread to work with. The average price of £134.01 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.