Gt mountain bikes
Gt mountain bikes for sale on Ireland's largest auction and classifieds sites
1997 timberline all terra - gt, - £198.34
Sweet deal mountain • Bike brought you • Currently set single - Free postage - New and Used
Sweet deal mountain • Bike brought you • Currently set single - Free postage - New and Used
Nice laguna pro - nice, - £225.00
Laguna pro 27.5 • Mountain bike unisex • Adults who enjoy - Free postage - New and Used
Laguna pro 27.5 • Mountain bike unisex • Adults who enjoy - Free postage - New and Used
Vintage 1989 talera - 1989, gt - £299.00
Vintage 1989 talera • Speed mountain bike • Frame measures 18.5 - Free postage - New and Used
Vintage 1989 talera • Speed mountain bike • Frame measures 18.5 - Free postage - New and Used
Aggressor pro mountain - pro, - £375.55
New comfort seat • Adult upgraded specialized • Front rim tire - Free postage - New and Used
New comfort seat • Adult upgraded specialized • Front rim tire - Free postage - New and Used
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Vintage 1985 chrome - chrome, gt - £325.00
Not 100 sure • This serial number • Pics vintage 1986 - Free postage - New and Used
Not 100 sure • This serial number • Pics vintage 1986 - Free postage - New and Used
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48 listings · from £3.29 · avg £464.07
Browse 48 gt mountain bikes listings currently in our index. Prices range from £3.29 to £1999.99, with an average of £464.07. 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 gt mountain bikes →
Rts full suspension - gt, - £499.00
Rts full suspension • Mountain bike high • Quality bicycle off - Free postage - New and Used
Rts full suspension • Mountain bike high • Quality bicycle off - Free postage - New and Used
1996 avalanche 7005 - gt, - £557.00
7005 aluminum shimano • Shifters derailuer 1996 • Avalanche mountain bike - Free postage - New and Used
7005 aluminum shimano • Shifters derailuer 1996 • Avalanche mountain bike - Free postage - New and Used
1990 outpost mtb - outpost, - £1999.00
Preowned bike shown - Free postage - New and Used
Preowned bike shown - Free postage - New and Used
Vintage pantera mountain - vintage, - £259.99
Parts pictured are • Fits 26in 135mm • Brake any headset - Free postage - New and Used
Parts pictured are • Fits 26in 135mm • Brake any headset - Free postage - New and Used
Lts mountain bike - lts, - £395.00
Good working condition • Wheels - Free postage - New and Used
Good working condition • Wheels - Free postage - New and Used
Pantera frame m alloy - gt, 18" - £120.95
See photos cane • Creek headset cups • Included not sure - Free postage - New and Used
See photos cane • Creek headset cups • Included not sure - Free postage - New and Used
1991 arette touring mtb - gt, - £222.00
700c wheel ensures • Compatibility wide range • Tires while steel - Free postage - New and Used
700c wheel ensures • Compatibility wide range • Tires while steel - Free postage - New and Used
Vintage xcr2000 drive - gt, - £395.00
You are getting • Xcr 2000 drive • Bike frame shipping - Free postage - New and Used
You are getting • Xcr 2000 drive • Bike frame shipping - Free postage - New and Used
Vtg tequesta all - vtg, terra - £600.00
When acquired this • Bike was attached • Stand that why - Free postage - New and Used
When acquired this • Bike was attached • Stand that why - Free postage - New and Used
New outpost sport 5 - outpost, - £200.00
New outpost sport • 27.5 blue mountain • Bike high quality - Free postage - New and Used
New outpost sport • 27.5 blue mountain • Bike high quality - Free postage - New and Used
Aggressor pro mountain bike - gt, - £225.00
Mountain bike • 27.5 orange high • Quality durable stylish - Free postage - New and Used
Mountain bike • 27.5 orange high • Quality durable stylish - Free postage - New and Used
Xcr 4000 mountain bike - xcr, - £485.00
Xcr 4000 this • Mountain bike ready • Works should shifting - Free postage - New and Used
Xcr 4000 this • Mountain bike ready • Works should shifting - Free postage - New and Used
1991 inferno karakoram all - karakoram, - £1000.00
Bike has x1.50 • Araya rims believe • Handlebars shifters have - Free postage - New and Used
Bike has x1.50 • Araya rims believe • Handlebars shifters have - Free postage - New and Used
Vintage talera mountain - vintage, - £420.00
Super cool old • Mountain bike just • Got professionally tuned - Free postage - New and Used
Super cool old • Mountain bike just • Got professionally tuned - Free postage - New and Used
All terra mountain bike - gt, - £235.00
All terra wheel • Gears speed rear • Derailleur suntour functional - Free postage - New and Used
All terra wheel • Gears speed rear • Derailleur suntour functional - Free postage - New and Used
Zaskar vintage mountain - vintage, - £399.95
- Free postage - New and Used
- Free postage - New and Used
Rts 1993 complete - 1993, - £300.00
Your consideration gently • Used well preserved • Example 1993 rts - Free postage - New and Used
Your consideration gently • Used well preserved • Example 1993 rts - Free postage - New and Used
1990 timberline - 1990/91, - £379.99
Believe this 1990 • Timberland mountain bike • Straight cracks dents - Free postage - New and Used
Believe this 1990 • Timberland mountain bike • Straight cracks dents - Free postage - New and Used
Vintage competition series - gt, - £269.99
Front fork will • Need rebuild removeable • Rear derailleur hanger - Free postage - New and Used
Front fork will • Need rebuild removeable • Rear derailleur hanger - Free postage - New and Used
Rts series 7000 - rts-3, - £144.00
Seat tube has • One braze cable • Housing stop pivot - Free postage - New and Used
Seat tube has • One braze cable • Housing stop pivot - Free postage - New and Used
1999 xcr 3000 medium - xcr, - £199.99
1999 xcr 3000 • Medium frameset shock • High quality aluminum - Free postage - New and Used
1999 xcr 3000 • Medium frameset shock • High quality aluminum - Free postage - New and Used
Avalanche vintage - 19", - £159.99
Pretty sure avalanche • Model rear dropout • Spacing 135 takes - Free postage - New and Used
Pretty sure avalanche • Model rear dropout • Spacing 135 takes - Free postage - New and Used
Sts carbon thermoplastic - gt, /thermoplastic - £625.00
Good working condition • 54cm - Free postage - New and Used
Good working condition • 54cm - Free postage - New and Used
Outpost trail mountain bike - outpost, - £159.00
Has comfortable bell • Seat plenty tread • Tires aluminum rims - Free postage - New and Used
Has comfortable bell • Seat plenty tread • Tires aluminum rims - Free postage - New and Used
Sts xcr 1000 - gt, - £504.00
Bicycle model sts • Xcr 1000 estimated • Year 1997 bought - Free postage - New and Used
Bicycle model sts • Xcr 1000 estimated • Year 1997 bought - Free postage - New and Used
Aggressor pro mountain bike - pro, - £200.00
Used but mint • Condition aggressor pro • Mountain bike 27.5 - Free postage - New and Used
Used but mint • Condition aggressor pro • Mountain bike 27.5 - Free postage - New and Used
Silver drive 27 - silver, 5 - £300.00
Sold - Free postage - New and Used
Sold - Free postage - New and Used
Backwoods mountain bike - gt, - £250.00
Backwoods 26in wheels • Aluminum rims shimano • Gear system fully - Free postage - New and Used
Backwoods 26in wheels • Aluminum rims shimano • Gear system fully - Free postage - New and Used
Mint 1989 karakoram - mint, - £1200.00
This bike from • Personal collection was • Air conditioned storage - Free postage - New and Used
This bike from • Personal collection was • Air conditioned storage - Free postage - New and Used
1999 rebound 7005 - 16", | - £175.00
This bike made • From 7005 series • Aluminum 135mm rear - Free postage - New and Used
This bike made • From 7005 series • Aluminum 135mm rear - Free postage - New and Used
Bmx mountain bikes bike - mountain, - £3.29
This sticker 2.5 • These stickers are • Not made there - Free postage - New and Used
This sticker 2.5 • These stickers are • Not made there - Free postage - New and Used
1996 lts frameset for - gt, - £75.00
1996 lts framset • Hardware shock included • See photos further - Free postage - New and Used
1996 lts framset • Hardware shock included • See photos further - Free postage - New and Used
2023 force carbon large - force, - £1999.99
Drivetrain sram eagle • Speed 52t cassette • Xo1 derailleur 175mm - Free postage - New and Used
Drivetrain sram eagle • Speed 52t cassette • Xo1 derailleur 175mm - Free postage - New and Used
Aggressor pro mountain bike - pro, - £300.00
Mountain bike • Orange high quality • Flat handlebar 27.5 - Free postage - New and Used
Mountain bike • Orange high quality • Flat handlebar 27.5 - Free postage - New and Used
2001 bestwick frame and - 2001, - £229.00
2001 bestwick frame • Forks headset included • Chrome nice summer - Free postage - New and Used
2001 bestwick frame • Forks headset included • Chrome nice summer - Free postage - New and Used
Lts3 mountain bike - gt, - £395.00
Good working condition • 47cm - Free postage - New and Used
Good working condition • 47cm - Free postage - New and Used
Aggressor youth mountain - aggressor, 24 - £175.00
This bike ready • Works brakes are • Firm shifting smooth - Free postage - New and Used
This bike ready • Works brakes are • Firm shifting smooth - Free postage - New and Used
2023 force sport xlarge - 2023, - £1650.00
Well maintained ready • Hit trails model • 2022 force sport - Free postage - New and Used
Well maintained ready • Hit trails model • 2022 force sport - Free postage - New and Used
Vintage cirque mtb - mtb, hybrid - £159.00
Vintage cirque mtb • Hybrid frame purple • Flake paint 59cm - Free postage - New and Used
Vintage cirque mtb • Hybrid frame purple • Flake paint 59cm - Free postage - New and Used
1989 arrette mtb bike - 1989, 20" - £186.18
Sweet deal mountain • Bike brought you • Model arrette crankset - Free postage - New and Used
Sweet deal mountain • Bike brought you • Model arrette crankset - Free postage - New and Used
Mint 1989 karakoram k2 - mint, - £1800.00
Only flaws could • Find chip top • Tube couple scratches - Free postage - New and Used
Only flaws could • Find chip top • Tube couple scratches - Free postage - New and Used
Mountain bike black - mountain, gt - £400.00
Bike black 2021 • Inch frame features • Drop handlebar 27.5 - Free postage - New and Used
Bike black 2021 • Inch frame features • Drop handlebar 27.5 - Free postage - New and Used
Aggressor pro bicycle - gt, - £599.99
Aggressor pro bottle • Holder bike bell • Upgraded seat tune - Free postage - New and Used
Aggressor pro bottle • Holder bike bell • Upgraded seat tune - Free postage - New and Used
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Everything you need to know about gt mountain bikes
Whether you are looking for a brand-new or second-hand gt mountain bikes, 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 £3.29, while premium listings can reach £1999.99 — giving you a wide budget spread to work with. The average price of £464.07 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.