For Sale UK

Trek 820 mountain bike

4

Trek 820 mountain bike for sale on largest auction and classifieds sites

Home / Bicycles / Trek 820 mountain bike refurbished & used for sale | For Sale UK
Trek roscoe 2021 hardtail - trek,

Trek roscoe 2021 hardtail - trek,

£618.70
Buy It Now

» View on eBay #sponsored
Trek marlin silver alpha - marlin,

Trek marlin silver alpha - marlin,

£208.70
Buy It Now

» View on eBay #sponsored
Trek marlin gen - gen, 3

Trek marlin gen - gen, 3

£440.20
Buy It Now

» View on eBay #sponsored
Trek marlin gen - marlin, 3

Trek marlin gen - marlin, 3

£465.70
Buy It Now

» View on eBay #sponsored
Trek marlin 29in mountain - 29in,

Trek marlin 29in mountain - 29in,

£338.20
Buy It Now

» View on eBay #sponsored
Brand new trek - new,

Brand new trek - new,

£720.70
Buy It Now

» View on eBay #sponsored
Trek marlin hard tail - hard,

Trek marlin hard tail - hard,

£511.60
Buy It Now

» View on eBay #sponsored
Trek caliber small - 7,

Trek caliber small - 7,

£414.70
Buy It Now

» View on eBay #sponsored
Trek mamba mountain - trek,

Trek mamba mountain - trek,

£198.30
Buy It Now

» View on eBay #sponsored
Trek marlin gen - marlin, 6

Trek marlin gen - marlin, 6

£567.70
Buy It Now

» View on eBay #sponsored
Trek 4900 mountain bike - trek,

Trek 4900 mountain bike - trek,

£389.00
Buy It Now

» View on eBay #sponsored
Trek fuel mountain bike - ex,

Trek fuel mountain bike - ex,

£516.70
Buy It Now

» View on eBay #sponsored
Trek roscoe mountain bike - mountain,

Trek roscoe mountain bike - mountain,

£465.70
Buy It Now

» View on eBay #sponsored
Trek 4300 mountain bike unisex - trek,

Trek 4300 mountain bike unisex - trek,

£99.50
Buy It Now

» View on eBay #sponsored
2023 trek roscoe size - 2023, xl

2023 trek roscoe size - 2023, xl

£797.91
Buy It Now

» View on eBay #sponsored
Trek marlin gen - gen, mountain

Trek marlin gen - gen, mountain

£404.50
Buy It Now

» View on eBay #sponsored
Trek slash mountain bike - 8,

Trek slash mountain bike - 8,

£1536.70
Buy It Now

» View on eBay #sponsored
Trek mt220 mountain bike - trek,

Trek mt220 mountain bike - trek,

£83.90
Buy It Now

» View on eBay #sponsored
Trek alpha 4100 mountain - 4100,

Trek alpha 4100 mountain - 4100,

£47.50
Buy It Now

» View on eBay #sponsored
Trek 4300 mountain bike green - mountain,

Trek 4300 mountain bike green - mountain,

£104.69
Buy It Now

» View on eBay #sponsored
2025 trek marlin - 6, gen

2025 trek marlin - 6, gen

£547.30
Buy It Now

» View on eBay #sponsored
Trek marlin mountain bike - 6,

Trek marlin mountain bike - 6,

£567.70
Buy It Now

» View on eBay #sponsored
Trek 3500 3700 3900 - 3500,

Trek 3500 3700 3900 - 3500,

£10.99
Buy It Now

» View on eBay #sponsored
Trek marlin mountain bike - trek, 7

Trek marlin mountain bike - trek, 7

£550.00
Buy It Now

» View on eBay #sponsored
Trek marlin medium 29er - marlin,

Trek marlin medium 29er - marlin,

£719.68
Buy It Now

» View on eBay #sponsored
Trek navigator 200 hardtail - trek,

Trek navigator 200 hardtail - trek,

£140.00
Buy It Now

» View on eBay #sponsored
1997 trek mountain bike - 1997, y-22

1997 trek mountain bike - 1997, y-22

£2499.00
Buy It Now

» View on eBay #sponsored
Trek marlin hardtail - marlin, 5

Trek marlin hardtail - marlin, 5

£465.70
Buy It Now

» View on eBay #sponsored
Trek 3700 disc - 3700,

Trek 3700 disc - 3700,

£89.10
Buy It Now

» View on eBay #sponsored
Trek 6700 mountain - trek,

Trek 6700 mountain - trek,

£207.66
Buy It Now

» View on eBay #sponsored
Trek 3900 disc spec not - 3900, (disc

Trek 3900 disc spec not - 3900, (disc

£115.10
Buy It Now

» View on eBay #sponsored
Trek marlin mountain bike - marlin,

Trek marlin mountain bike - marlin,

£373.90
Buy It Now

» View on eBay #sponsored
Trek slash ultimate flight - slash,

Trek slash ultimate flight - slash,

£4586.70
Buy It Now

» View on eBay #sponsored
Trek caliber shimano deore - trek,

Trek caliber shimano deore - trek,

£975.00
Buy It Now

» View on eBay #sponsored
Trek procaliber shimano - procaliber, 9.6

Trek procaliber shimano - procaliber, 9.6

£1795.00
Buy It Now

» View on eBay #sponsored
Mountain bike trek - bike, 5

Mountain bike trek - bike, 5

£567.70
Buy It Now

» View on eBay #sponsored
Trek caliber mountain - 7,

Trek caliber mountain - 7,

£414.70
Buy It Now

» View on eBay #sponsored
Trek caliber shimano deore - trek,

Trek caliber shimano deore - trek,

£750.00
Buy It Now

» View on eBay #sponsored
Trek mountain bike 4300 - mountain,

Trek mountain bike 4300 - mountain,

£78.70
Buy It Now

» View on eBay #sponsored
Trek roscoe hardtail - roscoe, 7

Trek roscoe hardtail - roscoe, 7

£600.00
Buy It Now

» View on eBay #sponsored
Trek roscoe mountain - 7, bike

Trek roscoe mountain - 7, bike

£669.70
Buy It Now

» View on eBay #sponsored
Trek marlin mountain bike - mountain,

Trek marlin mountain bike - mountain,

£618.70
Buy It Now

» View on eBay #sponsored
Trek marlin mountain bike - 5,

Trek marlin mountain bike - 5,

£414.70
Buy It Now

» View on eBay #sponsored
Trek caliber 7 - trek,

Trek caliber 7 - trek,

£260.70
Buy It Now

» View on eBay #sponsored
Trek slash mountain bike - mountain,

Trek slash mountain bike - mountain,

£2250.70
Buy It Now

» View on eBay #sponsored
Trek roscoe msg - 6, more

Trek roscoe msg - 6, more

£460.38
Buy It Now

» View on eBay #sponsored
Trek 4900 alpha - trek, 17.5”

Trek 4900 alpha - trek, 17.5”

£79.99
Buy It Now

» View on eBay #sponsored
Trek marlin gen bike - marlin, new

Trek marlin gen bike - marlin, new

£618.70
Buy It Now

» View on eBay #sponsored
Trek remedy rsl - 9,

Trek remedy rsl - 9,

£1281.70
Buy It Now

» View on eBay #sponsored
Trek marlin mountain - trek,

Trek marlin mountain - trek,

£618.70
Buy It Now

» View on eBay #sponsored
Trek series alpha aluminum - trek,

Trek series alpha aluminum - trek,

£187.90
Buy It Now

» View on eBay #sponsored
Mountain bike hardtail - hardtail,

Mountain bike hardtail - hardtail,

£924.70
Buy It Now

» View on eBay #sponsored
Vintage trek step thru - thru, frame

Vintage trek step thru - thru, frame

£23.92
Buy It Now

» View on eBay #sponsored
Mountain bike brake - mountain,

Mountain bike brake - mountain,

£11.42
Buy It Now

» View on eBay #sponsored
2005 trek 820 - 2005, frame

2005 trek 820 - 2005, frame

£151.92
Buy It Now

» View on eBay #sponsored
Trek marlin mountain - mountain, bike

Trek marlin mountain - mountain, bike

£465.70
Buy It Now

» View on eBay #sponsored
Gray trek singletrack 850 - trek,

Gray trek singletrack 850 - trek,

£52.19
Buy It Now

» View on eBay #sponsored
Trek 820 inch - trek,

Trek 820 inch - trek,

£58.05
Buy It Now

» View on eBay #sponsored
2010 trek 820 mtb bike - st,

2010 trek 820 mtb bike - st,

£84.81
Buy It Now

» View on eBay #sponsored
Trek procaliber 7 - trek, 9.7

Trek procaliber 7 - trek, 9.7

£2352.70
Buy It Now

» View on eBay #sponsored
Trek xcaliber large - trek, 8

Trek xcaliber large - trek, 8

£613.30
Buy It Now

» View on eBay #sponsored
2008 trek 820 mtb - st,

2008 trek 820 mtb - st,

£84.81
Buy It Now

» View on eBay #sponsored
Trek marlin red and white - 7,

Trek marlin red and white - 7,

£208.70
Buy It Now

» View on eBay #sponsored
2005 trek 820 wsd - 2005, bike

2005 trek 820 wsd - 2005, bike

£97.65
Buy It Now

» View on eBay #sponsored
Trek 6700 slr hardtail - trek,

Trek 6700 slr hardtail - trek,

£208.70
Buy It Now

» View on eBay #sponsored
Trek xcaliber hardtail - xcaliber,

Trek xcaliber hardtail - xcaliber,

£240.45
Buy It Now

» View on eBay #sponsored
Trek excalibur hardtail - excalibur, 7

Trek excalibur hardtail - excalibur, 7

£389.20
Buy It Now

» View on eBay #sponsored
1999 trek 820 front - 1999,

1999 trek 820 front - 1999,

£45.58
Buy It Now

» View on eBay #sponsored
Mens large mountain - bike, trek

Mens large mountain - bike, trek

£150.00
Buy It Now

» View on eBay #sponsored
Trek 3900 disc spec not - trek, (disc

Trek 3900 disc spec not - trek, (disc

£145.00
Buy It Now

» View on eBay #sponsored
Trek mountain bike - trek, large

Trek mountain bike - trek, large

£68.30
Buy It Now

» View on eBay #sponsored
Trek roscoe hardtail - roscoe, 6

Trek roscoe hardtail - roscoe, 6

£363.70
Buy It Now

» View on eBay #sponsored
Trek 3900 mountain bike - trek,

Trek 3900 mountain bike - trek,

£125.00
Buy It Now

» View on eBay #sponsored
Used once then stored - , ladies

Used once then stored - , ladies

£156.70
Buy It Now

» View on eBay #sponsored
Trek marlin mountain bike - trek, 7

Trek marlin mountain bike - trek, 7

£338.20
Buy It Now

» View on eBay #sponsored
Trek marlin gen mountain - trek,

Trek marlin gen mountain - trek,

£618.70
Buy It Now

» View on eBay #sponsored
Trek 4300 mountain bike in - bike,

Trek 4300 mountain bike in - bike,

£151.50
Buy It Now

» View on eBay #sponsored
Trek procaliber mountain - trek, 9.5

Trek procaliber mountain - trek, 9.5

£771.70
Buy It Now

» View on eBay #sponsored
Trek mountain bike 4500 - trek,

Trek mountain bike 4500 - trek,

£78.70
Buy It Now

» View on eBay #sponsored
Trek roscoe mountain bike - trek,

Trek roscoe mountain bike - trek,

£613.60
Buy It Now

» View on eBay #sponsored
Trek mountain bike 6700 - , size

Trek mountain bike 6700 - , size

£89.10
Buy It Now

» View on eBay #sponsored
Trek marlin mountain bike - 6,

Trek marlin mountain bike - 6,

£414.70
Buy It Now

» View on eBay #sponsored
Trek roscoe mountain bike - 8,

Trek roscoe mountain bike - 8,

£795.00
Buy It Now

» View on eBay #sponsored
Trek six series 6500 - trek, alpha

Trek six series 6500 - trek, alpha

£302.30
Buy It Now

» View on eBay #sponsored
Trek matrix front mtb - trek,

Trek matrix front mtb - trek,

£44.92
Buy It Now

» View on eBay #sponsored
Trek excalibur mountain bike - 8,

Trek excalibur mountain bike - 8,

£465.70
Buy It Now

» View on eBay #sponsored
Trek marlin mountain bike - marlin, 6

Trek marlin mountain bike - marlin, 6

£255.50
Buy It Now

» View on eBay #sponsored
Trek marlin mountain - trek,

Trek marlin mountain - trek,

£245.10
Buy It Now

» View on eBay #sponsored
Trek marlin gen mountain - marlin, 8

Trek marlin gen mountain - marlin, 8

£780.00
Buy It Now

» View on eBay #sponsored
Trek caliber sn22 - trek, lithium

Trek caliber sn22 - trek, lithium

£414.70
Buy It Now

» View on eBay #sponsored
Trek roscoe hardtail - trek,

Trek roscoe hardtail - trek,

£465.70
Buy It Now

» View on eBay #sponsored
Trek 4500 mountain - 4500,

Trek 4500 mountain - 4500,

£312.70
Buy It Now

» View on eBay #sponsored
Trek marlin mountain bike - trek,

Trek marlin mountain bike - trek,

£312.70
Buy It Now

» View on eBay #sponsored
Trek marlin gen mountain - 6,

Trek marlin gen mountain - 6,

£669.70
Buy It Now

» View on eBay #sponsored
Trek procaliber gen - trek, 3

Trek procaliber gen - trek, 3

£1485.70
Buy It Now

» View on eBay #sponsored
Trek 6000 men mountain - trek,

Trek 6000 men mountain - trek,

£172.30
Buy It Now

» View on eBay #sponsored

Looking for more trek 820 mountain bike?

Search eBay live — fresh results filtered for the best value, updated every hour.

🔍 Search live deals
📊96 listings · from £10.99 · avg £513.2
⚠️ These listings were last updated more than 10 days ago. Search for fresh listings

Browse 96 trek 820 mountain bike listings currently in our index. Prices range from £10.99 to £4586.7, with an average of £513.2. 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 →

Try this: trek alpha | trek bicycle | trek cycle | trek mtb | trek racing bikes | trek x caliber 7 | trekking bikes | trex bike | triathlon aero bars | trike bicycle

Shop by budget

< £25 £25 – £50 £50 – £100 £100 – £200 £200 – £500 > £500

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 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 £10.99, while premium listings can reach £4586.7 — giving you a wide budget spread to work with. The average price of £513.2 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.

🔍 trek 820 mountain bike Search live on eBay