Mountain bike adults
Mountain bike adults for sale on Ireland's largest auction and classifieds sites
Mountain bike inch wheel - mountain, - £209.90
Unique design bikes • Can not only • Shine their inner - Free postage - New and Used
Unique design bikes • Can not only • Shine their inner - Free postage - New and Used
Wheel mountain bike - wheel, - £259.90
Surface tyre has • Been specially strong • Grip that allows - Free postage - New and Used
Surface tyre has • Been specially strong • Grip that allows - Free postage - New and Used
Adult mountain bike front - mountain, - £209.90
Assemble guidance this • Bike arrives assembled • Front wheel pedals - Free postage - New and Used
Assemble guidance this • Bike arrives assembled • Front wheel pedals - Free postage - New and Used
Adult mountain bike - adult, - £76.92
This adult mountain • Bike diamondback features • Flat handlebar inch - Free postage - New and Used
This adult mountain • Bike diamondback features • Flat handlebar inch - Free postage - New and Used
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Full suspension - 24-27.5", - £189.90
Front rear suspension • Perfect trail riding • Daily commuting weekend - Free postage - New and Used
Front rear suspension • Perfect trail riding • Daily commuting weekend - Free postage - New and Used
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48 listings · from £60 · avg £303.24
Browse 48 mountain bike adults listings currently in our index. Prices range from £60 to £1130, with an average of £303.24. 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 mountain bike adults →
Electric bike for adults - electric, adults, - £399.00
Integrated nfc card • Unlocking allows quick • Secure access simply - Free postage - New and Used
Integrated nfc card • Unlocking allows quick • Secure access simply - Free postage - New and Used
Electric bike for - electric, adults - £469.00
Top assisted speed • Strikes great balance • Between performance ride - Free postage - New and Used
Top assisted speed • Strikes great balance • Between performance ride - Free postage - New and Used
Electric bike adults 0 - 20, x4.0 - £655.00
Easy assembly pre • Quicker enjoy your • Riding style fat - Free postage - New and Used
Easy assembly pre • Quicker enjoy your • Riding style fat - Free postage - New and Used
Coyote alpine hybrid mountain - coyote, - £201.99
Alpine coyote all • New gents hybrid • Bicycle adults mountain - Free postage - New and Used
Alpine coyote all • New gents hybrid • Bicycle adults mountain - Free postage - New and Used
Electric bike adults 0 - bike, x4.0 - £660.00
Easy assembly pre • Quicker enjoy your • Riding style fat - Free postage - New and Used
Easy assembly pre • Quicker enjoy your • Riding style fat - Free postage - New and Used
Gunai mountain bike adults - mountain, - £414.70
Great condition could • Clean has lights • Horn only done - Free postage - New and Used
Great condition could • Clean has lights • Horn only done - Free postage - New and Used
Grey inch fat - 26, mountain - £265.90
Surface tyre has • Been specially strong • Grip that allows - Free postage - New and Used
Surface tyre has • Been specially strong • Grip that allows - Free postage - New and Used
Aili mountain bike - 26", - £179.00
Aili mountain bike • Front suspension mtb • Straighten handlebars speed - Free postage - New and Used
Aili mountain bike • Front suspension mtb • Straighten handlebars speed - Free postage - New and Used
Probike unisex mountain bike - unisex, - £60.00
Probike unisex mountain • Bike adult teenager • Grip shift gear - Free postage - New and Used
Probike unisex mountain • Bike adult teenager • Grip shift gear - Free postage - New and Used
Inch fat tire wheel - fat, - £259.90
Professional fat tires • Bikes specially use • That are wear - Free postage - New and Used
Professional fat tires • Bikes specially use • That are wear - Free postage - New and Used
Specialized stump jumper - specialized, - £822.70
Specialised stump jumper • Expert high quality • Mountain bike unisex - Free postage - New and Used
Specialised stump jumper • Expert high quality • Mountain bike unisex - Free postage - New and Used
Basis toro mountain - toro, - £211.99
Gearing taken care • Shimano tourney speed • System indexed using - Free postage - New and Used
Gearing taken care • Shimano tourney speed • System indexed using - Free postage - New and Used
Mtb bike eastern - eastern, alpaka - £499.99
Brake hydraulic disc • Alpaka mtb hardtail • Bike 1.0 red - Free postage - New and Used
Brake hydraulic disc • Alpaka mtb hardtail • Bike 1.0 red - Free postage - New and Used
Inch wheel adult mountain - 29, - £219.90
Adjustable seat allows • You ride long • Distances comfortably assemble - Free postage - New and Used
Adjustable seat allows • You ride long • Distances comfortably assemble - Free postage - New and Used
Adults inch boardmans 6 - 29, 8.6 - £771.70
Adults inch boardmans • 8.6 mountain bike • Silver grey excellent - Free postage - New and Used
Adults inch boardmans • 8.6 mountain bike • Silver grey excellent - Free postage - New and Used
Inch adult mountain bike - adult, - £219.90
Adjustable seat allows • You ride long • Distances comfortably assemble - Free postage - New and Used
Adjustable seat allows • You ride long • Distances comfortably assemble - Free postage - New and Used
Mountain bike 21 - bike, - £219.90
Assemble guidance this • Bike arrives assembled • Front wheel pedals - Free postage - New and Used
Assemble guidance this • Bike arrives assembled • Front wheel pedals - Free postage - New and Used
Palomar mountain bike for - gt, - £250.30
Basically new took • Out few times • Then stored there - Free postage - New and Used
Basically new took • Out few times • Then stored there - Free postage - New and Used
Basis mountain bike full - 1, - £190.99
Basis componentry vibrant • Graphics gives unique • Look furnished full - Free postage - New and Used
Basis componentry vibrant • Graphics gives unique • Look furnished full - Free postage - New and Used
27 5 inch - /, mountain - £219.90
Freestyle bike • Pegs kids teen • Bmx bicycle boy - Free postage - New and Used
Freestyle bike • Pegs kids teen • Bmx bicycle boy - Free postage - New and Used
New aovopro bk520 900 bike - bike, for - £395.00
250 motor upgraded • Display bk520 electric • Bike equipped 250w - Free postage - New and Used
250 motor upgraded • Display bk520 electric • Bike equipped 250w - Free postage - New and Used
Adult mountain bike front - 24'', - £189.99
Assemble guidance this • Bike arrives assembled • Front wheel pedals - Free postage - New and Used
Assemble guidance this • Bike arrives assembled • Front wheel pedals - Free postage - New and Used
Mountain bike wheel - mountain, - £168.14
Textured tires ensure • Strong grip effective • Anti slip details - Free postage - New and Used
Textured tires ensure • Strong grip effective • Anti slip details - Free postage - New and Used
Wheel mountain bike - mountain, - £265.99
Professional fat tires • Bikes specially use • That are wear - Free postage - New and Used
Professional fat tires • Bikes specially use • That are wear - Free postage - New and Used
Mountain bike 21 - 27.5'', - £209.90
Distance from handlebars • Seat ground 86cm • 97cm - Free postage - New and Used
Distance from handlebars • Seat ground 86cm • 97cm - Free postage - New and Used
Large adults mountain - large, - £975.70
Mountain bike • Sturdy reliable bicycle • Off road adventures - Free postage - New and Used
Mountain bike • Sturdy reliable bicycle • Off road adventures - Free postage - New and Used
5 inch folding - 24/26/27.5, - £209.90
Spoke foldable design • Mountain bike can • Opened closed seconds - Free postage - New and Used
Spoke foldable design • Mountain bike can • Opened closed seconds - Free postage - New and Used
Electric bike for - bike, - £1130.00
Shengmilo s600 electric • Bike adults 3.0 • 48v 17.5ah removable - Free postage - New and Used
Shengmilo s600 electric • Bike adults 3.0 • 48v 17.5ah removable - Free postage - New and Used
Folding mountain bike - mountain, - £229.99
Spoke foldable design • Mountain bike can • Opened closed seconds - Free postage - New and Used
Spoke foldable design • Mountain bike can • Opened closed seconds - Free postage - New and Used
Dallingridge viscount mountain - viscount, - £222.99
Ever feel like • Those stubborn hills • Demand even easier - Free postage - New and Used
Ever feel like • Those stubborn hills • Demand even easier - Free postage - New and Used
Avalanche comp 2025 - comp, - £343.30
2025 avalanche comp • Hardtail mountain bike • Very good condition - Free postage - New and Used
2025 avalanche comp • Hardtail mountain bike • Very good condition - Free postage - New and Used
5inch mountain bike - 24-27.5inch, - £189.90
Front rear disc • Brakes maximum safety • Compared traditional rim - Free postage - New and Used
Front rear disc • Brakes maximum safety • Compared traditional rim - Free postage - New and Used
Basis toro mountain - el, - £211.99
Gearing taken care • Shimano tourney speed • System indexed using - Free postage - New and Used
Gearing taken care • Shimano tourney speed • System indexed using - Free postage - New and Used
Apollo paradox mountain bike - paradox, - £99.50
Mountain biking has • Long been favourite • Sport recreation getters - Free postage - New and Used
Mountain biking has • Long been favourite • Sport recreation getters - Free postage - New and Used
Speed folding mountain bike - folding, - £144.11
Specifications color black • Bike material carbon • Synthetic leather metal - Free postage - New and Used
Specifications color black • Bike material carbon • Synthetic leather metal - Free postage - New and Used
Mountain bike inch - bike,27.5, bikes - £209.90
Unique design bikes • Can not only • Shine their inner - Free postage - New and Used
Unique design bikes • Can not only • Shine their inner - Free postage - New and Used
Basis toro mountain bike - basis, - £211.99
Gearing taken care • Shimano tourney speed • System indexed using - Free postage - New and Used
Gearing taken care • Shimano tourney speed • System indexed using - Free postage - New and Used
Mountain bike 21 speed - mountain, 21-speed - £291.89
Xids mountain bicycle • Speed high quality • Bike daily use - Free postage - New and Used
Xids mountain bicycle • Speed high quality • Bike daily use - Free postage - New and Used
Basis toro mountain bike - basis, - £211.99
Gearing taken care • Shimano tourney speed • System indexed using - Free postage - New and Used
Gearing taken care • Shimano tourney speed • System indexed using - Free postage - New and Used
Adult bike - adult, - £104.70
Adults bike not • Been used while • Rides perfectly everything - Free postage - New and Used
Adults bike not • Been used while • Rides perfectly everything - Free postage - New and Used
Inch folding bike - 20", & - £129.99
Foldable yes suitable • Adults teens folding • Bike speed full - Free postage - New and Used
Foldable yes suitable • Adults teens folding • Bike speed full - Free postage - New and Used
Inch mountain bike - mountain, speed - £199.99
Unique design bikes • Can not only • Shine their inner - Free postage - New and Used
Unique design bikes • Can not only • Shine their inner - Free postage - New and Used
Apollo cosmo mountain bike - apollo, - £70.38
Very nice apollo • Cosmo recently had • New chain fitted - Free postage - New and Used
Very nice apollo • Cosmo recently had • New chain fitted - Free postage - New and Used
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Everything you need to know about mountain bike adults
Whether you are looking for a brand-new or second-hand mountain bike adults, 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 £60, while premium listings can reach £1130 — giving you a wide budget spread to work with. The average price of £303.24 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.