Trek 820 mountain bike
Trek 820 mountain bike for sale on Ireland's largest auction and classifieds sites
Trek mountain track - 820, retro - £150.00
Collection from ayup • Bikes derby wheel • Shimano altus rear - Free postage - New and Used
Collection from ayup • Bikes derby wheel • Shimano altus rear - Free postage - New and Used
Trek marlin mountain bike - trek, - £363.70
Trek marlin mountain • Bike black colour • Features flat handlebar - Free postage - New and Used
Trek marlin mountain • Bike black colour • Features flat handlebar - Free postage - New and Used
Trek marlin mountain bike - trek, 5 - £240.00
Good bike getting • Rid need money • All rear brakes - Free postage - New and Used
Good bike getting • Rid need money • All rear brakes - Free postage - New and Used
Used trek 4300 mountain bike - mountain, - £42.30
This used trek • 4300 mountain bike • High quality lightweight - Free postage - New and Used
This used trek • 4300 mountain bike • High quality lightweight - Free postage - New and Used
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Trek supercaliber slr - trek, - £2700.00
Recently had full • Service all bearings • Replaced not ridden - Free postage - New and Used
Recently had full • Service all bearings • Replaced not ridden - Free postage - New and Used
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48 listings · from £42.3 · avg £668.32
⚠️ These listings were last updated more than 22 days ago.
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Browse 48 trek 820 mountain bike listings currently in our index. Prices range from £42.3 to £4586.7, with an average of £668.32. 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 trek 820 mountain bike →
Trek elite series - elite, - £260.70
Lovely trek 8.7 • Elite series great • Spec follows these - Free postage - New and Used
Lovely trek 8.7 • Elite series great • Spec follows these - Free postage - New and Used
Trek marlin mountain bike - trek, - £414.70
Trek marlin mountain • Bike blue medium • Frame - Free postage - New and Used
Trek marlin mountain • Bike blue medium • Frame - Free postage - New and Used
Trek marlin gen mountain - gen, - £771.70
Trek marlin gen • Large further close • Pictures follow this - Free postage - New and Used
Trek marlin gen • Large further close • Pictures follow this - Free postage - New and Used
Trek caliber mountain - trek, bike - £290.00
Trek caliber mountain • Bike high quality • Serious off road - Free postage - New and Used
Trek caliber mountain • Bike high quality • Serious off road - Free postage - New and Used
Free delivery trek roscoe - *free, delivery* - £750.00
Rockshox forks shimano • Mt501 brakes sram • Speed drivetrain collection - Free postage - New and Used
Rockshox forks shimano • Mt501 brakes sram • Speed drivetrain collection - Free postage - New and Used
Trek 6300 medium mountain - 6300, - £180.00
Fully serviced cytech • Qualified bike mechanic • Good condition all - Free postage - New and Used
Fully serviced cytech • Qualified bike mechanic • Good condition all - Free postage - New and Used
Trek caliber mountain bike - trek, - £567.70
Overall good working • Condition signs wear • Usage must expected - Free postage - New and Used
Overall good working • Condition signs wear • Usage must expected - Free postage - New and Used
Trek mountain bike roscoe - bike, 7 - £465.70
Quit lot scratches • Frame but other • Than that good - Free postage - New and Used
Quit lot scratches • Frame but other • Than that good - Free postage - New and Used
Trek 920 - £618.70
Trek 920 - Free postage - New and Used
Trek 920 - Free postage - New and Used
2025 trek marlin - 2025, gen - £550.00
This trek marlin • Gen which bought • August 2025 selling - Free postage - New and Used
This trek marlin • Gen which bought • August 2025 selling - Free postage - New and Used
Trek roscoe mountain bike - 6, - £414.70
Trek roscoe mountain • Bike high quality • Men features flat - Free postage - New and Used
Trek roscoe mountain • Bike high quality • Men features flat - Free postage - New and Used
Trek marlin gen m l - gen, 2 - £414.70
Mountain bike • Trek marlin gen • Inch wheels stylish - Free postage - New and Used
Mountain bike • Trek marlin gen • Inch wheels stylish - Free postage - New and Used
Trek marlin mountain bike - mountain, - £567.70
Hardly used great • Condition less thank • 100km never been - Free postage - New and Used
Hardly used great • Condition less thank • 100km never been - Free postage - New and Used
Trek marlin gen large - gen, 2 - £450.00
Equipped speed derailleur • Gears system hydraulic • Disc brakes lightweight - Free postage - New and Used
Equipped speed derailleur • Gears system hydraulic • Disc brakes lightweight - Free postage - New and Used
Trek marlin mountain bike - trek, - £491.20
Willing any negotiations • Reasonable swaps trek • Marlin medium sized - Free postage - New and Used
Willing any negotiations • Reasonable swaps trek • Marlin medium sized - Free postage - New and Used
Trek 3500 mountain - bike, three - £130.70
This because bike • Build made friend • Living over years - Free postage - New and Used
This because bike • Build made friend • Living over years - Free postage - New and Used
Trek marlin mountain bike - marlin, - £409.60
Trek marlin mountain • Bike 29er high • Quality aluminium - Free postage - New and Used
Trek marlin mountain • Bike 29er high • Quality aluminium - Free postage - New and Used
Trek precaliber - trek, - £130.70
Trek precaliber high • Quality mountain bike • Unisex kids made - Free postage - New and Used
Trek precaliber high • Quality mountain bike • Unisex kids made - Free postage - New and Used
Trek caliber shimano deore - trek, 7 - £750.00
Trek caliber shimano • Deore 10s disc • Mtb 2021 good - Free postage - New and Used
Trek caliber shimano • Deore 10s disc • Mtb 2021 good - Free postage - New and Used
Trek slash mountain - mountain, bike - £2250.70
Trek slash 9.7 • Green blue nukepeoof • Pedals some scratches - Free postage - New and Used
Trek slash 9.7 • Green blue nukepeoof • Pedals some scratches - Free postage - New and Used
Trek procaliber shimano - trek, - £1725.00
Trek procaliber 9.5 • Shimano deore 12s • Disc carbon medium - Free postage - New and Used
Trek procaliber 9.5 • Shimano deore 12s • Disc carbon medium - Free postage - New and Used
1997 trek mountain - y-22, bike - £2499.00
Reluctant sale there • Are not many • These left certainly - Free postage - New and Used
Reluctant sale there • Are not many • These left certainly - Free postage - New and Used
Trek marlin mountain - trek, - £515.68
Used week old • Practically brand new • Trek marlin mountain - Free postage - New and Used
Used week old • Practically brand new • Trek marlin mountain - Free postage - New and Used
Trek marlin mountain - marlin, 5 - £210.00
Trek marlin needs • Suspension serviced gear • Need new teeth - Free postage - New and Used
Trek marlin needs • Suspension serviced gear • Need new teeth - Free postage - New and Used
Trek marlin gen - marlin, 2 - £450.00
Suspension lockable metal • Pedals bought 1000 • New 2025 has - Free postage - New and Used
Suspension lockable metal • Pedals bought 1000 • New 2025 has - Free postage - New and Used
Trek marlin mountain - 4, bike - £312.70
Inch wheels few • Minor scratches too • Frame other than - Free postage - New and Used
Inch wheels few • Minor scratches too • Frame other than - Free postage - New and Used
Trek marlin mountain bike - marlin, 7 - £414.70
This trek marlin7 • Sale been used • Has scratches frame - Free postage - New and Used
This trek marlin7 • Sale been used • Has scratches frame - Free postage - New and Used
Trek slash ultimate flight - trek, - £4586.70
Suspension rockshoxflight attendant • System drivetrain sram • Eagleaxs wireless speed - Free postage - New and Used
Suspension rockshoxflight attendant • System drivetrain sram • Eagleaxs wireless speed - Free postage - New and Used
Trek mountain bike large dual - mountain, - £338.20
Trek mountain bike • High quality dual • Men durable aluminium - Free postage - New and Used
Trek mountain bike • High quality dual • Men durable aluminium - Free postage - New and Used
Trek roscoe aquatic - roscoe, 7 - £750.00
Sale trek roscoe • Aquatic blue mountain • Bike good condition - Free postage - New and Used
Sale trek roscoe • Aquatic blue mountain • Bike good condition - Free postage - New and Used
Trek marlin mountain bike - 5, - £414.70
Trek marlin mountain • Bike medium large • Used about times - Free postage - New and Used
Trek marlin mountain • Bike medium large • Used about times - Free postage - New and Used
2005 trek fuel mtb bike - trek, 9 - £516.70
Shimano deore drivetrain • Vintage integrated shifter • Levers rare nowadays - Free postage - New and Used
Shimano deore drivetrain • Vintage integrated shifter • Levers rare nowadays - Free postage - New and Used
Trek excailber mountain bike - excailber, - £208.70
Trek excailber 2014 • Pump spare iner • Tube fame 18.5inchs - Free postage - New and Used
Trek excailber 2014 • Pump spare iner • Tube fame 18.5inchs - Free postage - New and Used
Trek mountain bike 4300 - trek, - £78.70
Collection only please • From central winchester - Free postage - New and Used
Collection only please • From central winchester - Free postage - New and Used
Trek marlin mountain bike - mountain, - £455.50
Pristine condition barely • Used water bottle • Pump helmet included - Free postage - New and Used
Pristine condition barely • Used water bottle • Pump helmet included - Free postage - New and Used
Trek caliber mountain bike - trek, - £414.70
Few scratches marks • Everything works should • Serviced start year - Free postage - New and Used
Few scratches marks • Everything works should • Serviced start year - Free postage - New and Used
Trek roscoe shimano deore - 7, - £1350.00
Trek roscoe shimano • Deore 12s disc • Large mtb dropper - Free postage - New and Used
Trek roscoe shimano • Deore 12s disc • Large mtb dropper - Free postage - New and Used
Trek marlin mountain - 5, - £255.21
Trek marlin mountain • Bike large - Free postage - New and Used
Trek marlin mountain • Bike large - Free postage - New and Used
Trek marlin shimano deore - marlin, - £495.00
Trek marlin shimano • Deore disc large • Mtb used signs - Free postage - New and Used
Trek marlin shimano • Deore disc large • Mtb used signs - Free postage - New and Used
Mountain bike trek marlin - trek, 5 - £567.70
Mountain bike trek • Marlin gen new • Flat bar handlebar - Free postage - New and Used
Mountain bike trek • Marlin gen new • Flat bar handlebar - Free postage - New and Used
Trek navigator 200 hardtail - navigator, - £140.00
Wheels yorkshire bike • Shack cic - Free postage - New and Used
Wheels yorkshire bike • Shack cic - Free postage - New and Used
Trek roscoe mountain bike - roscoe, - £822.70
High security • Trek roscoe 2019 • Hard tail drop - Free postage - New and Used
High security • Trek roscoe 2019 • Hard tail drop - Free postage - New and Used
Trek 4500 alpha hard tail - 4500, - £182.70
Selling trek 4500 • Reliable mountain bike • Perfect trails daily - Free postage - New and Used
Selling trek 4500 • Reliable mountain bike • Perfect trails daily - Free postage - New and Used
Try this: trek alpha | trek bicycle | trek bontrager | trek cycle | trek mtb | trek racing bikes | trek x caliber 7 | trekking bikes | trex bike | tri spoke wheel
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Everything you need to know about trek 820 mountain bike
Whether you are looking for a brand-new or second-hand trek 820 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 £42.3, while premium listings can reach £4586.7 — giving you a wide budget spread to work with. The average price of £668.32 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.